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authorStuart Mackie <wsmackie@juniper.net>2017-03-23 06:19:54 -0700
committerStuart Mackie <wsmackie@juniper.net>2017-03-23 06:19:54 -0700
commit88df88a19674ccc0017836941b8ee32eaadf19fb (patch)
treef930c90f75846ec8d8e33cf27325ff8fafc85d5c
parent9f50a40437477432a21b326b15c343ca6b8fe516 (diff)
Deleted charms with wrong license. Will source them differently in future.
Change-Id: I0fc99ea03c6b6ca4701e63793cb2be60e56c7588 Signed-off-by: Stuart Mackie <wsmackie@juniper.net>
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-rw-r--r--charms/trusty/neutron-contrail/hooks/charmhelpers/core/decorators.py57
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-rw-r--r--charms/trusty/neutron-contrail/hooks/charmhelpers/core/fstab.py134
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-rw-r--r--charms/trusty/neutron-contrail/hooks/charmhelpers/core/services/__init__.py18
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-rw-r--r--charms/trusty/neutron-contrail/hooks/charmhelpers/core/sysctl.py56
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-rw-r--r--charms/trusty/neutron-contrail/scripts/juju-header5
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-rwxr-xr-xcharms/trusty/neutron-contrail/scripts/vhost-phys.sh6
-rw-r--r--charms/trusty/neutron-contrail/scripts/vrouter-interfaces.awk38
-rw-r--r--charms/trusty/neutron-contrail/templates/contrail-barbican-auth.conf13
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-rw-r--r--charms/trusty/neutron-contrail/templates/contrail-vrouter-nodemgr.conf9
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-rw-r--r--charms/trusty/neutron-contrail/templates/vrouter-vgw.cfg21
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diff --git a/charms/trusty/cassandra/.bzr/README b/charms/trusty/cassandra/.bzr/README
deleted file mode 100644
index f82dc1c..0000000
--- a/charms/trusty/cassandra/.bzr/README
+++ /dev/null
@@ -1,3 +0,0 @@
-This is a Bazaar control directory.
-Do not change any files in this directory.
-See http://bazaar.canonical.com/ for more information about Bazaar.
diff --git a/charms/trusty/cassandra/.bzr/branch-format b/charms/trusty/cassandra/.bzr/branch-format
deleted file mode 100644
index 9eb09b7..0000000
--- a/charms/trusty/cassandra/.bzr/branch-format
+++ /dev/null
@@ -1 +0,0 @@
-Bazaar-NG meta directory, format 1
diff --git a/charms/trusty/cassandra/.bzr/branch/branch.conf b/charms/trusty/cassandra/.bzr/branch/branch.conf
deleted file mode 100644
index efb4cac..0000000
--- a/charms/trusty/cassandra/.bzr/branch/branch.conf
+++ /dev/null
@@ -1 +0,0 @@
-parent_location = bzr+ssh://bazaar.launchpad.net/~charmers/charms/trusty/cassandra/trunk/
diff --git a/charms/trusty/cassandra/.bzr/branch/format b/charms/trusty/cassandra/.bzr/branch/format
deleted file mode 100644
index dc392f4..0000000
--- a/charms/trusty/cassandra/.bzr/branch/format
+++ /dev/null
@@ -1 +0,0 @@
-Bazaar Branch Format 7 (needs bzr 1.6)
diff --git a/charms/trusty/cassandra/.bzr/branch/last-revision b/charms/trusty/cassandra/.bzr/branch/last-revision
deleted file mode 100644
index 4f71a92..0000000
--- a/charms/trusty/cassandra/.bzr/branch/last-revision
+++ /dev/null
@@ -1 +0,0 @@
-379 stuart.bishop@canonical.com-20160701064342-way4zlx1v8mg8902
diff --git a/charms/trusty/cassandra/.bzr/branch/tags b/charms/trusty/cassandra/.bzr/branch/tags
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-BZR conflict list format 1
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+++ /dev/null
@@ -1 +0,0 @@
-Bazaar Working Tree Format 6 (bzr 1.14)
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+++ /dev/null
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-revision
-*.pyc
-.stamp-*
-.venv2
-.venv3
-tests/.venv2
-tests/.venv3
-.coverage
-coverage
diff --git a/charms/trusty/cassandra/Makefile b/charms/trusty/cassandra/Makefile
deleted file mode 100644
index 571af56..0000000
--- a/charms/trusty/cassandra/Makefile
+++ /dev/null
@@ -1,224 +0,0 @@
-#!/usr/bin/make -f
-
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-
-JUJU = juju
-
-default:
- @echo Missing target
- @echo 'Usage: make [ lint | unittest | test | clean | sync ]'
- env
-
-# Only trusty supported, but xenial expected soon.
-SERIES := $(shell $(JUJU) get-environment default-series)
-
-HOST_SERIES := $(shell lsb_release -sc)
-ifeq ($(HOST_SERIES),trusty)
- PYVER := 3.4
-else
- PYVER := 3.5
-endif
-
-
-# /!\ Ensure that errors early in pipes cause failures, rather than
-# overridden by the last stage of the pipe. cf. 'test.py | ts'
-SHELL := /bin/bash
-export SHELLOPTS:=errexit:pipefail
-
-
-# Calculate the CHARM_DIR (the directory this Makefile is in)
-THIS_MAKEFILE_PATH:=$(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
-CHARM_DIR:=$(shell cd $(dir $(THIS_MAKEFILE_PATH));pwd)
-VENV3:=$(CHARM_DIR)/.venv3
-
-# Set the PATH so the correct tools are found.
-export PATH:=$(VENV3)/bin:$(PATH)
-
-SITE_PACKAGES=$(wildcard $(VENV3)/lib/python*/site-packages)
-
-PIP=.venv3/bin/pip$(PYVER) -q
-NOSETESTS=.venv3/bin/nosetests-3.4 -sv # Yes, even with 3.5
-
-# Set pipefail so we can get sane error codes while tagging test output
-# with ts(1)
-SHELL=bash -o pipefail
-
-deps: packages venv3
-
-lint: deps
- date
- free --human
- charm proof $(CHARM_DIR)
- flake8 \
- --ignore=E402,E265 \
- --exclude=charmhelpers,.venv2,.venv3 hooks tests testing
- @echo OK: Lint free `date`
-
-unittest: lint
- $(NOSETESTS) \
- tests.test_actions --cover-package=actions \
- tests.test_helpers --cover-package=helpers \
- tests.test_definitions --cover-package=definitions \
- --with-coverage --cover-branches
- @echo OK: Unit tests pass `date`
-
-test: unittest
- AMULET_TIMEOUT=3600 \
- $(NOSETESTS) tests.test_integration
-
-ftest: unittest Test1UnitDeployment
-Test1UnitDeployment: deps
- date
- AMULET_TIMEOUT=5400 \
- $(NOSETESTS) tests.test_integration:Test1UnitDeployment 2>&1 | ts
-
-20test: unittest Test20Deployment
-Test20Deployment: deps
- date
- AMULET_TIMEOUT=5400 \
- $(NOSETESTS) tests.test_integration:Test20Deployment 2>&1 | ts
-
-21test: unittest Test21Deployment
-Test21Deployment: deps
- date
- AMULET_TIMEOUT=5400 \
- $(NOSETESTS) tests.test_integration:Test21Deployment 2>&1 | ts
-
-30test: unittest Test30Deployment
-Test30Deployment: deps
- date
- AMULET_TIMEOUT=5400 \
- $(NOSETESTS) tests.test_integration:Test30Deployment 2>&1 | ts
-
-3test: unittest Test3UnitDeployment
-Test3UnitDeployment: deps
- date
- AMULET_TIMEOUT=7200 \
- $(NOSETESTS) tests.test_integration:Test3UnitDeployment 2>&1 | ts
-
-authtest: unittest TestAllowAllAuthenticatorDeployment
-TestAllowAllAuthenticatorDeployment: deps
- date
- AMULET_TIMEOUT=7200 \
- $(NOSETESTS) \
- tests.test_integration:TestAllowAllAuthenticatorDeployment 2>&1 | ts
-
-# Place a copy of the Oracle Java SE 7 Server Runtime tarball in ./lib
-# to run these tests.
-jretest: unittest
- AMULET_TIMEOUT=5400 \
- $(NOSETESTS) tests.test_integration:TestOracleJREDeployment 2>&1 | ts
-
-# You need the Oracle JRE (per jretest) and set the DSE_SOURCE environment
-# variable for this to work:
-# DSE_SOURCE="deb http://un:pw@debian.datastax.com/enterprise stable main"
-# You will also need a cache like squid-deb-proxy and have tweaked it to
-# cache the authenticated files, or the tests will likely timeout waiting
-# for huge downloads to complete. Alternatively, mirror the DataStax
-# packages into your own private archive.
-dsetest: unittest
- AMULET_TIMEOUT=5400 \
- $(NOSETESTS) tests.test_integration:TestDSEDeployment 2>&1 | ts
-
-coverage: lint
- $(NOSETESTS) \
- tests.test_actions --cover-package=actions \
- tests.test_helpers --cover-package=helpers \
- tests.test_definitions --cover-package=definitions \
- --with-coverage --cover-branches \
- --cover-html --cover-html-dir=coverage \
- --cover-min-percentage=100 || \
- (gnome-open coverage/index.html; false)
-
-clean:
- rm -rf .venv? tests/.venv? .stamp-* coverage .coverage
- find . -name __pycache__ -type d | xargs rm -rf
-
-
-# Attempt to diagnose environment for test failures.
-debug:
- -which virtualenv
- -which python
- -which python2
- -which python3
- -which pip
- -which pip3
- -head -1 `which virtualenv || echo nothere`
- -python -c 'import sys; print(sys.version); print(sys.path);'
- -python2 -c 'import sys; print(sys.version); print(sys.path);'
- -python3 -c 'import sys; print(sys.version); print(sys.path);'
- -env
-
-
-packages: .stamp-packages
-.stamp-packages:
- # Install bootstrap debs, and Python packages used by the charm
- # to ensure versions match.
- sudo add-apt-repository -y ppa:stub/juju
- sudo add-apt-repository -y ppa:stub/cassandra
- sudo apt-get update
- sudo apt-get install -y \
- python3 python3-pip python3-apt python3-dev python-virtualenv \
- charm-tools build-essential libev4 libev-dev libffi-dev \
- netcat python3-jinja2 juju-wait moreutils \
- python3-cassandra python3-bcrypt
- touch .stamp-packages
-
-venv3: packages .stamp-venv3
-.stamp-venv3:
- # Build a Python virtualenv to run our tests.
- virtualenv -p python3 --system-site-packages ${VENV3}
-
- # Create a .pth so our tests can locate everything without
- # sys.path hacks.
- (echo ${CHARM_DIR}/hooks; echo ${CHARM_DIR}) \
- > ${VENV3}/lib/python${PYVER}/site-packages/tests.pth
-
- echo 'pip: ' `which pip`
-
- # Pip install packages needed by the test suite but not used
- # by the charm.
- $(PIP) install bcrypt cassandra-driver blist
- $(PIP) install --upgrade -I nose flake8
- $(PIP) install --upgrade coverage amulet mock juju-deployer juju-wait
-
- echo 'nosetests:' `which nosetests`
- echo 'flake8:' `which flake8`
-
- # Create a link for test shebang lines.
- (cd tests && ln -s ${VENV3} .venv3)
-
- touch .stamp-venv3
-
-venv2: packages .stamp-venv2
-.stamp-venv2:
- virtualenv -p python2.7 --system-site-packages .venv2
- .venv2/bin/pip install -q bundletester
- touch .stamp-venv2
-
-bundletest: venv2
- .venv2/bin/bundletester
-
-sync:
- @bzr cat \
- lp:charm-helpers/tools/charm_helpers_sync/charm_helpers_sync.py \
- > .charm_helpers_sync.py
- @python .charm_helpers_sync.py -c charm-helpers.yaml
- #@python .charm_helpers_sync.py \
- # -c lib/testcharms/testclient/charm-helpers.yaml
- @rm .charm_helpers_sync.py
diff --git a/charms/trusty/cassandra/README.md b/charms/trusty/cassandra/README.md
deleted file mode 100644
index 00784cc..0000000
--- a/charms/trusty/cassandra/README.md
+++ /dev/null
@@ -1,179 +0,0 @@
-# Overview
-
-The Apache Cassandra database is the right choice when you need scalability
-and high availability without compromising performance. Linear scalability
-and proven fault-tolerance on commodity hardware or cloud infrastructure
-make it the perfect platform for mission-critical data. Cassandra's support
-for replicating across multiple datacenters is best-in-class, providing lower
-latency for your users and the peace of mind of knowing that you can survive
-regional outages.
-
-See [cassandra.apache.org](http://cassandra.apache.org) for more information.
-
-
-# Editions
-
-This charm supports Apache Cassandra 2.0, 2.1, 2.2 & 3.0, and
-Datastax Enterprise 4.7 & 4.8. The default is Apache Cassandra 2.2.
-
-To use Apache Cassandra 2.0, specify the Apache Cassandra 2.0 archive source
-in the `install_sources` config setting when deploying.
-
-To use Datastax Enterprise, set the `edition` config setting to `dse`
-and the Datastax Enterprise archive URL in `install_sources` (including your
-username and password).
-
-
-# Deployment
-
-Cassandra deployments are relatively simple in that they consist of a set of
-Cassandra nodes which seed from each other to create a ring of servers:
-
- juju deploy -n3 cs:trusty/cassandra
-
-The service units will deploy and will form a single ring.
-
-New nodes can be added to scale up:
-
- juju add-unit cassandra
-
-
-/!\ Nodes must be manually decommissioned before dropping a unit.
-
- juju run --unit cassandra/1 "nodetool decommission"
- # Wait until Mode is DECOMMISSIONED
- juju run --unit cassandra/1 "nodetool netstats"
- juju remove-unit cassandra/1
-
-It is recommended to deploy at least 3 nodes and configure all your
-keyspaces to have a replication factor of three. Using fewer nodes or
-neglecting to set your keyspaces' replication settings means that your
-data is at risk and availability lower, as a failed unit may take the
-only copy of data with it.
-
-Production systems will normally want to set `max_heap_size` and
-`heap_newsize` to the empty string, to enable automatic memory size
-tuning. The defaults have been chosen to be suitable for development
-environments but will perform poorly with real workloads.
-
-
-## Planning
-
-- Do not attempt to store too much data per node. If you need more space,
- add more nodes. Most workloads work best with a capacity under 1TB
- per node.
-
-- You need to keep 50% of your disk space free for Cassandra maintenance
- operations. If you expect your nodes to hold 500GB of data each, you
- will need a 1TB partition. Using non-default compaction such as
- LeveledCompactionStrategy can lower this waste.
-
-- Much more information can be found in the [Cassandra 2.2 documentation](http://docs.datastax.com/en/cassandra/2.2/cassandra/planning/planPlanningAbout.html)
-
-
-## Network Access
-
-The default Cassandra packages are installed from the apache.org
-archive. To avoid this download, place a copy of the packages in a local
-archive and specify its location in the `install_sources` configuration
-option. The signing key is automatically added.
-
-When using DataStax Enterprise, you need to specify the archive location
-containing the DataStax Enterprise .deb packages in the
-`install_sources` configuration item, and the signing key in the
-`install_keys` configuration item. Place the DataStax packages in a
-local archive to avoid downloading from datastax.com.
-
-
-## Oracle Java SE
-
-Cassandra recommends using Oracle Java SE 8. Unfortunately, this
-software is accessible only after accepting Oracle's click-through
-license making deployments using it much more cumbersome. You will need
-to download the Oracle Java SE 8 Server Runtime for Linux, and place the
-tarball at a URL accessible to your deployed units. The config item
-`private_jre_url` needs to be set to this URL.
-
-
-# Usage
-
-To relate the Cassandra charm to a service that understands how to talk to
-Cassandra using Thrift or the native Cassandra protocol::
-
- juju deploy cs:service-that-needs-cassandra
- juju add-relation service-that-needs-cassandra cassandra:database
-
-
-Alternatively, if you require a superuser connection, use the
-`database-admin` relation instead of `database`::
-
- juju deploy cs:admin-service
- juju add-relation admin-service cassandra:database-admin
-
-
-Client charms need to provide nothing. The Cassandra service publishes the
-following connection settings and cluster information on the client's relation:
-
-`username` and `password`:
-
- Authentication credentials. The cluster is configured to use
- the standard PasswordAuthenticator authentication provider, rather
- than the insecure default. You can use different credentials
- if you wish, using an account created through some other mechanism.
-
-`host`:
-
- IP address to connect to.
-
-`native_transport_port`:
-
- Port for drivers and tools using the newer native protocol.
-
-`rpc_port`:
-
- Port for drivers and tools using the legacy Thrift protocol.
-
-`cluster_name`:
-
- The cluster name. A client service may be related to several
- Cassandra services, and this setting may be used to tell which
- services belong to which cluster.
-
-`datacenter` and `rack`:
-
- The datacenter and rack units in this service belong to. Required for
- setting keyspace replication correctly.
-
-The cluster is configured to use the recommended 'snitch'
-(GossipingPropertyFileSnitch), so you will need to configure replication of
-your keyspaces using the NetworkTopologyStrategy replica placement strategy.
-For example, using the default datacenter named 'juju':
-
- CREATE KEYSPACE IF NOT EXISTS mydata WITH REPLICATION =
- { 'class': 'NetworkTopologyStrategy', 'juju': 3};
-
-
-Although authentication is configured using the standard
-PasswordAuthentication, by default no authorization is configured
-and the provided credentials will have access to all data on the cluster.
-For more granular permissions, you will need to set the authorizer
-in the service configuration to CassandraAuthorizer and manually grant
-permissions to the users.
-
-
-# Known Limitations and Issues
-
-This is the 'trusty' charm. Upgrade from the 'precise' charm is not supported.
-
-The `system_auth` keyspace replication factor is automatically increased
-but not decreased. If you have a service with three or more units and
-decommission enough nodes to drop below three, you will need to manually
-update the `system_auth` keyspace replication settings.
-
-
-# Contact Information
-
-## Cassandra
-
-- [Apache Cassandra homepage](http://cassandra.apache.org/)
-- [Cassandra Getting Started](http://wiki.apache.org/cassandra/GettingStarted)
diff --git a/charms/trusty/cassandra/README.storage b/charms/trusty/cassandra/README.storage
deleted file mode 100644
index 4a71179..0000000
--- a/charms/trusty/cassandra/README.storage
+++ /dev/null
@@ -1,41 +0,0 @@
-= Persistent storage =
-
-/!\ Unfortunately, per Bug #1334956, the storage and block-storage-broker
- charms are not yet available in the charm store for trusty so
- this documentation does not work as written.
-
-The cassandra charm takes advantage of the storage subordinate charm
-and the block-storage-broker charm. With these two charms cassandra can
-either request new volumes are created or use existing volumes.
-
-For requesting new volume creation, just set external_volume_mount in
-the cassandra charm and root, provider and volume_size for the storage
-subordinate charm.
-
-If using existing volumes, also set the volume_map for the storage
-subordinate charm.
-
-
-Example using existing volumes:
-
-juju deploy -n 3 cassandra
-juju set cassandra external_volume_mount="/srv/data"
-
-juju deploy storage
-juju set storage
- root=/srv/data
- provider=block-storage-broker
- volume_size=10
- # Volume map needed for existing storage
- volume_map="{cassandra/0: e09be717-384b-43e3-b06a-3a68b5a2252d,
- cassandra/1: ebd35228-6972-4e22-86a8-37483581154a,
- cassandra/2: 9f02b67b-72da-4e22-98ee-10a95c1b298d}"
-
-juju deploy block-storage-broker
-
-juju add-relation storage cassandra
-juju add-relation storage block-storage-broker
-
-
-See the READMEs for the storage subordinate charm and the
-block-storage-broker charm for more detail on persistent storage.
diff --git a/charms/trusty/cassandra/charm-helpers.yaml b/charms/trusty/cassandra/charm-helpers.yaml
deleted file mode 100644
index da3786b..0000000
--- a/charms/trusty/cassandra/charm-helpers.yaml
+++ /dev/null
@@ -1,27 +0,0 @@
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-destination: hooks/charmhelpers
-#branch: lp:charm-helpers
-branch: lp:~stub/charm-helpers/integration
-include:
- - coordinator
- - core
- - fetch
- - contrib.charmsupport
- - contrib.templating.jinja
- - contrib.network.ufw
- - contrib.benchmark
diff --git a/charms/trusty/cassandra/config.yaml b/charms/trusty/cassandra/config.yaml
deleted file mode 100644
index 6ec68a5..0000000
--- a/charms/trusty/cassandra/config.yaml
+++ /dev/null
@@ -1,316 +0,0 @@
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-options:
- # Install and upgrade charm related options
- extra_packages:
- type: string
- default: ""
- description: >
- Extra packages to install. A space delimited list of packages.
- package_status:
- default: "install"
- type: string
- description: >
- The status of service-affecting packages will be set to this
- value in the dpkg database. Useful valid values are "install"
- and "hold".
- install_sources:
- type: string
- description: >
- charm-helpers standard listing of package install sources.
- If you are using Datastax Enterprise, you will need to
- override one defaults with your own username and password.
- default: |
- - deb http://www.apache.org/dist/cassandra/debian 22x main
- - ppa:openjdk-r/ppa # For OpenJDK 8
- - ppa:stub/cassandra # For Python driver
- # - deb http://debian.datastax.com/community stable main
- # DSE requires you to register and add your username/password here.
- # - deb http://un:pw@debian.datastax.com/enterprise stable main
- install_keys:
- type: string
- description: >
- charm-helpers standard listing of package install source
- signing keys, corresponding to install_sources.
- default: |
- - null # ppa:stub/cassandra signing key added automatically.
- - null # Apache package signing key added automatically.
- - null # PPA package signing key added automatically.
- # - null # DataStack package signing key added automatically.
- http_proxy:
- type: string
- description: >
- Value for the http_proxy and https_proxy environment variables.
- This causes pip(1) and other tools to perform downloads via
- the proxy server. eg. http://squid.dc1.lan:8080
- default: ""
- # TODO: Add JNA
- # private_jna_url:
- # type: string
- # default: ""
- # description: >
- # URL for the private jna tar file. DSE requires JNA >= 3.4
- private_jre_url:
- type: string
- default: ""
- description: >
- URL for the private jre tar file. DSE requires
- Oracle Java SE 8 Server JRE (eg. server-jre-8u60-linux-x64.tar.gz).
- edition:
- type: string
- default: community
- description: >
- One of 'community' or 'dse'. 'community' uses the
- Apache Cassandra packages. 'dse' is for DataStax
- Enterprise. Selecting 'dse' overrides the jvm setting.
- jre:
- type: string
- default: openjdk
- description: >
- Which Java runtime environment to use. May be 'openjdk' or
- 'oracle'.
-
- # Storage configuration
- wait_for_storage_broker:
- type: boolean
- default: False
- description: >
- Do not start the service before external storage has been
- mounted using the block storage broker relation. If you do
- not set this and you relate the service to the storage
- broker, then your service will have started up using local
- disk, and later torn down and rebuilt when the external
- storage became available.
- data_file_directories:
- type: string
- default: data
- description: >
- Space delimited data directories. Use multiple data
- directories to split data over multiple physical hardware
- drive partitions. Paths are relative to /var/lib/cassandra
- or the block storage broker external mount point.
- commitlog_directory:
- type: string
- default: commitlog
- description: >
- Commit log directory. The path is relative to
- /var/lib/cassandra or the block storage broker external
- mount point.
- saved_caches_directory:
- type: string
- default: saved_caches
- description: >
- Saved caches directory. The path is relative to
- /var/lib/cassandra or the block storage broker external
- mount point.
- io_scheduler:
- type: string
- default: "noop"
- description: >
- Set kernel io scheduler for persistent storage.
- https://www.kernel.org/doc/Documentation/block/switching-sched.txt
-
-## units-to-update:
-## type: string
-## default: "all"
-## description: >
-## Comma separated list of unit numbers to update (i.e. modify
-## /etc setup and trigger cassandra restart on config-change or
-## upgrade-charm), or "all".
-
- # nrpe-external-master relation related options
- nagios_context:
- default: "juju"
- type: string
- description: |
- Used by the nrpe subordinate charms.
- A string that will be prepended to instance name to set the host name
- in nagios. So for instance the hostname would be something like:
- juju-myservice-0
- If you're running multiple environments with the same services in them
- this allows you to differentiate between them.
- nagios_servicegroups:
- default: ""
- type: string
- description: >
- A comma-separated list of nagios servicegroups.
- If left empty, the nagios_context will be used as the servicegroup
- nagios_heapchk_warn_pct:
- default: 80
- type: int
- description: >
- The pct of heap used to trigger a nagios warning
- nagios_heapchk_crit_pct:
- default: 90
- type: int
- description: >
- The pct of heap used to trigger a nagios critcal alert
- nagios_disk_warn_pct:
- default: 50
- type: int
- description: >
- The pct of data disk used to trigger a nagios warning
- nagios_disk_crit_pct:
- default: 25
- type: int
- description: >
- The pct of data disk used to trigger a nagios critcal alert
-
- # cassandra-env.sh related options
- # The default tuning has been chosen to be suitable for development
- # and test environments. The default tunings are expected to change
- # over time.
- max_heap_size:
- type: string
- default: '384M'
- description: >
- Total size of Java memory heap, for example 1G or 512M.
- If you set this, you should also set heap_newsize. The
- default is automatically tuned.
- heap_newsize:
- type: string
- default: '32M'
- description: >
- The size of the JVM's young generation in the heap. If you
- set this, you should also set max_heap_size. If in doubt,
- go with 100M per physical CPU core. The default is
- automatically tuned.
-
- # Cassandra.yaml related options
- cluster_name:
- type: string
- default: "juju"
- description: >
- Name of the Cassandra cluster. This is mainly used to
- prevent machines in one logical cluster from joining
- another. All Cassandra services you wish to cluster together
- must have the same cluster_name. This setting cannot be changed
- after service deployment.
- partitioner:
- default: Murmur3Partitioner
- type: string
- description: >
- The cassandra partitioner to use. Use Murmur3Partitioner,
- unless another is required for backwards compatibility.
- num_tokens:
- type: int
- default: 256
- description: Number of tokens per node.
-
- # Topology of the service in the cluster.
- datacenter:
- type: string
- default: "juju"
- description: >
- The node's datacenter used by the endpoint_snitch. e.g. "DC1".
- It cannot be changed after service deployment.
- rack:
- type: string
- default: ""
- description: >
- The rack used by the endpoint_snitch for all units in this
- service. e.g. "Rack1". This cannot be changed after deployment.
- It defaults to the service name. Cassandra will store replicated
- data in different racks whenever possible.
-
-
- # Networking options.
- native_transport_port:
- type: int
- default: 9042
- description: Native protocol port for native protocol clients.
- rpc_port:
- type: int
- default: 9160
- description: Thrift protocol port for legacy clients.
- storage_port:
- type: int
- default: 7000
- description: Cluster communication port
- ssl_storage_port:
- type: int
- default: 7001
- description: >
- Cluster secure communication port. TODO: Unused. configure SSL.
- authenticator:
- type: string
- default: PasswordAuthenticator
- description: >
- Authentication backend. Only PasswordAuthenticator and
- AllowAllAuthenticator are supported. You should only
- use AllowAllAuthenticator for legacy applications that
- cannot provide authentication credentials.
- authorizer:
- type: string
- default: AllowAllAuthorizer
- description: >
- Authorization backend, implementing IAuthorizer; used to limit
- access/provide permissions Out of the box, Cassandra provides
- AllowAllAuthorizer & CassandraAuthorizer
- - AllowAllAuthorizer allows any action to any user - set it to
- disable authorization.
- - CassandraAuthorizer stores permissions in
- system_auth.permissions table.
-
-
- # Tuning options.
- compaction_throughput_mb_per_sec:
- type: int
- default: 16
- description: >
- Throttles compaction to the given total throughput (in MB/sec)
- across the entire system. The faster you insert data, the faster
- you need to compact in order to keep the sstable count down,
- but in general, setting this to 16 to 32 times the rate you
- are inserting data is more than sufficient. Setting this to
- 0 disables throttling. Note that this account for all types
- of compaction, including validation compaction.
- stream_throughput_outbound_megabits_per_sec:
- type: int
- default: 200
- description: >
- Throttles all outbound streaming file transfers on nodes to the
- given total throughput in Mbps. This is necessary because Cassandra
- does mostly sequential IO when streaming data during bootstrap or
- repair, which can lead to saturating the network connection and
- degrading rpc performance. When unset, the default is 200 Mbps
- or 25 MB/s. 0 to disable throttling.
-
- tombstone_warn_threshold:
- type: int
- default: 1000
- description: >
- When executing a scan, within or across a partition, we
- need to keep the tombstones seen in memory so we can return
- them to the coordinator, which will use them to make sure
- other replicas also know about the deleted rows. With
- workloads that generate a lot of tombstones, this can cause
- performance problems and even exaust the server heap. Adjust
- the thresholds here if you understand the dangers and want
- to scan more tombstones anyway.
- tombstone_failure_threshold:
- type: int
- default: 100000
- description: >
- When executing a scan, within or across a partition, we need
- to keep the tombstones seen in memory so we can return them
- to the coordinator, which will use them to make sure other
- replicas also know about the deleted rows. With workloads
- that generate a lot of tombstones, this can cause
- performance problems and even exaust the server heap. Adjust
- the thresholds here if you understand the dangers and want
- to scan more tombstones anyway.
diff --git a/charms/trusty/cassandra/copyright b/charms/trusty/cassandra/copyright
deleted file mode 100644
index 7902f54..0000000
--- a/charms/trusty/cassandra/copyright
+++ /dev/null
@@ -1,19 +0,0 @@
-Format: http://dep.debian.net/deps/dep5/
-
-Files: *
-Copyright: Copyright 2013, Canonical Ltd., All Rights Reserved.
-License: AGPL-3
-This file is part of the Cassandra charm.
-Copyright 2015 Canonical Ltd.
-.
-This program is free software: you can redistribute it and/or modify it
-under the terms of the GNU General Public License version 3, as
-published by the Free Software Foundation.
-.
-This program is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranties of
-MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-PURPOSE. See the GNU General Public License for more details.
-.
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/charms/trusty/cassandra/files/check_cassandra_heap.sh b/charms/trusty/cassandra/files/check_cassandra_heap.sh
deleted file mode 100644
index 395aa06..0000000
--- a/charms/trusty/cassandra/files/check_cassandra_heap.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/bin/bash
-#---------------------------------------------------
-# This file is Juju managed
-#---------------------------------------------------
-
-# Copyright (C) 2012 Canonical Ltd.
-# Author: Liam Young
-#
-# Script used to check Cassandra is alive and that it has space left in the heap
-
-set -u
-
-if [[ $# -lt 3 ]]; then
- echo "$0 <jmx-ipadress> <warnpct> <criticalpct>"
- exit 1
-fi
-WARN_PCT=$2
-CRIT_PCT=$3
-
-NODE_INF0="$(nodetool -h $1 info 2>/dev/null)"
-if [[ $? -ne 0 ]]; then
- echo "ERROR: Failed to connect to Cassandra"
- exit 2
-fi
-PCT_USED=$(echo "$NODE_INF0" | awk 'BEGIN {FS=":"} $1 ~ /^Heap Memory/ {print $2}' | awk '{ printf("%i\n", $1*100/$3) }')
-USAGE_INFO="${PCT_USED}% of heap memory used"
-if [[ $PCT_USED -lt $WARN_PCT ]]; then
- echo "OK: ${USAGE_INFO}"
- exit 0
-elif [[ $PCT_USED -lt $CRIT_PCT ]]; then
- echo "WARNING: ${USAGE_INFO}"
- exit 1
-else
- echo "CRITICAL: ${USAGE_INFO}"
- exit 1
-fi
diff --git a/charms/trusty/cassandra/hooks/actions.py b/charms/trusty/cassandra/hooks/actions.py
deleted file mode 100644
index 8887056..0000000
--- a/charms/trusty/cassandra/hooks/actions.py
+++ /dev/null
@@ -1,990 +0,0 @@
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-from contextlib import closing
-import errno
-from functools import wraps
-import glob
-import os.path
-import re
-import shlex
-import socket
-import subprocess
-from textwrap import dedent
-import time
-import urllib.request
-
-from charmhelpers import fetch
-from charmhelpers.contrib.charmsupport import nrpe
-from charmhelpers.contrib.network import ufw
-from charmhelpers.contrib.templating import jinja
-from charmhelpers.core import hookenv, host
-from charmhelpers.core.fstab import Fstab
-from charmhelpers.core.hookenv import DEBUG, ERROR, WARNING
-
-import cassandra
-
-from coordinator import coordinator
-import helpers
-import relations
-
-
-# These config keys cannot be changed after service deployment.
-UNCHANGEABLE_KEYS = set(['cluster_name', 'datacenter', 'rack', 'edition'])
-
-# If any of these config items are changed, Cassandra needs to be
-# restarted and maybe remounted.
-RESTART_REQUIRED_KEYS = set([
- 'data_file_directories',
- 'commitlog_directory',
- 'saved_caches_directory',
- 'storage_port',
- 'ssl_storage_port',
- 'rpc_port',
- 'native_transport_port',
- 'partitioner',
- 'num_tokens',
- 'max_heap_size',
- 'heap_newsize',
- 'authenticator',
- 'authorizer',
- 'compaction_throughput_mb_per_sec',
- 'stream_throughput_outbound_megabits_per_sec',
- 'tombstone_warn_threshold',
- 'tombstone_failure_threshold',
- 'jre',
- 'private_jre_url'])
-
-ALL_CONFIG_KEYS = UNCHANGEABLE_KEYS.union(RESTART_REQUIRED_KEYS)
-
-
-# All other config items. By maintaining both lists, we can detect if
-# someone forgot to update these lists when they added a new config item.
-RESTART_NOT_REQUIRED_KEYS = set([
- 'extra_packages',
- 'package_status',
- 'install_sources',
- 'install_keys',
- 'http_proxy',
- 'wait_for_storage_broker',
- 'io_scheduler',
- 'nagios_context',
- 'nagios_servicegroups',
- 'nagios_heapchk_warn_pct',
- 'nagios_heapchk_crit_pct',
- 'nagios_disk_warn_pct',
- 'nagios_disk_crit_pct'])
-
-
-def action(func):
- '''Log and call func, stripping the undesirable servicename argument.
- '''
- @wraps(func)
- def wrapper(servicename, *args, **kw):
- if hookenv.remote_unit():
- hookenv.log("** Action {}/{} ({})".format(hookenv.hook_name(),
- func.__name__,
- hookenv.remote_unit()))
- else:
- hookenv.log("** Action {}/{}".format(hookenv.hook_name(),
- func.__name__))
- return func(*args, **kw)
- return wrapper
-
-
-def leader_only(func):
- '''Decorated function is only run on the leader.'''
- @wraps(func)
- def wrapper(*args, **kw):
- if hookenv.is_leader():
- return func(*args, **kw)
- else:
- return None
- return wrapper
-
-
-def authentication(func):
- '''Decorated function is skipped if authentication is disabled.'''
- @wraps(func)
- def wrapper(*args, **kw):
- auth = hookenv.config()['authenticator']
- if auth == 'PasswordAuthenticator':
- return func(*args, **kw)
- elif auth == 'AllowAllAuthenticator':
- hookenv.log('Skipped. Authentication disabled.', DEBUG)
- return None
- helpers.status_set('blocked', 'Unknown authenticator {}'.format(auth))
- raise SystemExit(0)
- return wrapper
-
-
-@action
-def set_proxy():
- import hooks
- hooks.set_proxy()
-
-
-@action
-def revert_unchangeable_config():
- config = hookenv.config()
-
- # config.previous() only becomes meaningful after the install
- # hook has run. During the first run on the unit hook, it
- # reports everything has having None as the previous value.
- if config._prev_dict is None:
- return
-
- for key in UNCHANGEABLE_KEYS:
- if config.changed(key):
- previous = config.previous(key)
- hookenv.log('{} cannot be changed after service deployment. '
- 'Using original setting {!r}'.format(key, previous),
- ERROR)
- config[key] = previous
-
-
-# FOR CHARMHELPERS
-@action
-def preinstall():
- '''Preinstallation data_ready hook.'''
- # Only run the preinstall hooks from the actual install hook.
- if hookenv.hook_name() == 'install':
- # Pre-exec
- pattern = os.path.join(hookenv.charm_dir(),
- 'exec.d', '*', 'charm-pre-install')
- for f in sorted(glob.glob(pattern)):
- if os.path.isfile(f) and os.access(f, os.X_OK):
- hookenv.log('Running preinstall hook {}'.format(f))
- subprocess.check_call(['sh', '-c', f])
- else:
- hookenv.log('Ingnoring preinstall hook {}'.format(f),
- WARNING)
- else:
- hookenv.log('No preinstall hooks found')
-
-
-# FOR CHARMHELPERS
-@action
-def swapoff(fstab='/etc/fstab'):
- '''Turn off swapping in the container, permanently.'''
- # Turn off swap in the current session
- if helpers.is_lxc():
- hookenv.log("In an LXC. Not touching swap.")
- return
- else:
- try:
- subprocess.check_call(['swapoff', '-a'])
- except Exception as e:
- hookenv.log("Got an error trying to turn off swapping. {}. "
- "We may be in an LXC. Exiting gracefully"
- "".format(e), WARNING)
- return
-
- # Disable swap permanently
- with closing(Fstab(fstab)) as fstab:
- while True:
- swap_entry = fstab.get_entry_by_attr('filesystem', 'swap')
- if swap_entry is None:
- break
- fstab.remove_entry(swap_entry)
-
-
-# FOR CHARMHELPERS
-@action
-def configure_sources():
- '''Standard charmhelpers package source configuration.'''
- config = hookenv.config()
- if config.changed('install_sources') or config.changed('install_keys'):
- fetch.configure_sources(True)
-
-
-@action
-def add_implicit_package_signing_keys():
- # Rather than blindly add these keys, we should sniff
- # config['install_sources'] for apache.org or datastax.com urls and
- # add only the appropriate keys.
- for key in ('apache', 'datastax'):
- path = os.path.join(hookenv.charm_dir(), 'lib', '{}.key'.format(key))
- subprocess.check_call(['apt-key', 'add', path],
- stdin=subprocess.DEVNULL)
-
-
-@action
-def reset_sysctl():
- '''Configure sysctl settings for Cassandra'''
- if helpers.is_lxc():
- hookenv.log("In an LXC. Leaving sysctl unchanged.")
- else:
- cassandra_sysctl_file = os.path.join('/', 'etc', 'sysctl.d',
- '99-cassandra.conf')
- contents = b"vm.max_map_count = 131072\n"
- try:
- host.write_file(cassandra_sysctl_file, contents)
- subprocess.check_call(['sysctl', '-p', cassandra_sysctl_file])
- except OSError as e:
- if e.errno == errno.EACCES:
- hookenv.log("Got Permission Denied trying to set the "
- "sysctl settings at {}. We may be in an LXC. "
- "Exiting gracefully".format(cassandra_sysctl_file),
- WARNING)
- else:
- raise
-
-
-@action
-def reset_limits():
- '''Set /etc/security/limits.d correctly for Ubuntu, so the
- startup scripts don't emit a spurious warning.
-
- Per Cassandra documentation, Ubuntu needs some extra
- twiddling in /etc/security/limits.d. I have no idea why
- the packages don't do this, since they are already
- setting limits for the cassandra user correctly. The real
- bug is that the limits of the user running the startup script
- are being checked, rather than the limits of the user that will
- actually run the process.
- '''
- contents = dedent('''\
- # Maintained by Juju
- root - memlock unlimited
- root - nofile 100000
- root - nproc 32768
- root - as unlimited
- ubuntu - memlock unlimited
- ubuntu - nofile 100000
- ubuntu - nproc 32768
- ubuntu - as unlimited
- ''')
- host.write_file('/etc/security/limits.d/cassandra-charm.conf',
- contents.encode('US-ASCII'))
-
-
-@action
-def install_cassandra_packages():
- helpers.install_packages(helpers.get_cassandra_packages())
- if helpers.get_jre() != 'oracle':
- subprocess.check_call(['update-java-alternatives',
- '--jre-headless',
- '--set', 'java-1.8.0-openjdk-amd64'])
-
-
-@action
-def ensure_cassandra_package_status():
- helpers.ensure_package_status(helpers.get_cassandra_packages())
-
-
-def _fetch_oracle_jre():
- config = hookenv.config()
- url = config.get('private_jre_url', None)
- if url and config.get('retrieved_jre', None) != url:
- filename = os.path.join(hookenv.charm_dir(),
- 'lib', url.split('/')[-1])
- if not filename.endswith('-linux-x64.tar.gz'):
- helpers.status_set('blocked',
- 'Invalid private_jre_url {}'.format(url))
- raise SystemExit(0)
- helpers.status_set(hookenv.status_get()[0],
- 'Downloading Oracle JRE')
- hookenv.log('Oracle JRE URL is {}'.format(url))
- urllib.request.urlretrieve(url, filename)
- config['retrieved_jre'] = url
-
- pattern = os.path.join(hookenv.charm_dir(),
- 'lib', 'server-jre-?u*-linux-x64.tar.gz')
- tarballs = glob.glob(pattern)
- if not (url or tarballs):
- helpers.status_set('blocked',
- 'private_jre_url not set and no local tarballs.')
- raise SystemExit(0)
-
- elif not tarballs:
- helpers.status_set('blocked',
- 'Oracle JRE tarball not found ({})'.format(pattern))
- raise SystemExit(0)
-
- # Latest tarball by filename/version num. Lets hope they don't hit
- # 99 (currently at 76).
- tarball = sorted(tarballs)[-1]
- return tarball
-
-
-def _install_oracle_jre_tarball(tarball):
- # Same directory as webupd8 to avoid surprising people, but it could
- # be anything.
- if 'jre-7u' in str(tarball):
- dest = '/usr/lib/jvm/java-7-oracle'
- else:
- dest = '/usr/lib/jvm/java-8-oracle'
-
- if not os.path.isdir(dest):
- host.mkdir(dest)
-
- jre_exists = os.path.exists(os.path.join(dest, 'bin', 'java'))
-
- config = hookenv.config()
-
- # Unpack the latest tarball if necessary.
- if config.get('oracle_jre_tarball', '') == tarball and jre_exists:
- hookenv.log('Already installed {}'.format(tarball))
- else:
- hookenv.log('Unpacking {}'.format(tarball))
- subprocess.check_call(['tar', '-xz', '-C', dest,
- '--strip-components=1', '-f', tarball])
- config['oracle_jre_tarball'] = tarball
-
- # Set alternatives, so /usr/bin/java does what we want.
- for tool in ['java', 'javac']:
- tool_path = os.path.join(dest, 'bin', tool)
- subprocess.check_call(['update-alternatives', '--install',
- os.path.join('/usr/bin', tool),
- tool, tool_path, '1'])
- subprocess.check_call(['update-alternatives',
- '--set', tool, tool_path])
-
-
-@action
-def install_oracle_jre():
- if helpers.get_jre() != 'oracle':
- return
-
- tarball = _fetch_oracle_jre()
- _install_oracle_jre_tarball(tarball)
-
-
-@action
-def emit_java_version():
- # Log the version for posterity. Could be useful since Oracle JRE
- # security updates are not automated.
- version = subprocess.check_output(['java', '-version'],
- universal_newlines=True)
- for line in version.splitlines():
- hookenv.log('JRE: {}'.format(line))
-
-
-@action
-def emit_meminfo():
- helpers.emit(subprocess.check_output(['free', '--human'],
- universal_newlines=True))
-
-
-@action
-def configure_cassandra_yaml():
- helpers.configure_cassandra_yaml()
-
-
-@action
-def configure_cassandra_env():
- cassandra_env_path = helpers.get_cassandra_env_file()
- assert os.path.exists(cassandra_env_path)
-
- helpers.maybe_backup(cassandra_env_path)
-
- overrides = [
- ('max_heap_size', re.compile(r'^#?(MAX_HEAP_SIZE)=(.*)$', re.M)),
- ('heap_newsize', re.compile(r'^#?(HEAP_NEWSIZE)=(.*)$', re.M)),
- # We don't allow this to be overridden to ensure that tools
- # will find JMX using the default port.
- # ('jmx_port', re.compile(r'^#?(JMX_PORT)=(.*)$', re.M)),
- ]
-
- with open(cassandra_env_path, 'r') as f:
- env = f.read()
-
- config = hookenv.config()
- for key, regexp in overrides:
- if config[key]:
- val = shlex.quote(str(config[key]))
- env = regexp.sub(r'\g<1>={}'.format(val),
- env)
- else:
- env = regexp.sub(r'#\1=\2', env)
- host.write_file(cassandra_env_path, env.encode('UTF-8'))
-
-
-@action
-def configure_cassandra_rackdc():
- config = hookenv.config()
- datacenter = config['datacenter'].strip()
- rack = config['rack'].strip() or hookenv.service_name()
- rackdc_properties = dedent('''\
- dc={}
- rack={}
- ''').format(datacenter, rack)
- rackdc_path = helpers.get_cassandra_rackdc_file()
- host.write_file(rackdc_path, rackdc_properties.encode('UTF-8'))
-
-
-def needs_reset_auth_keyspace_replication():
- '''Guard for reset_auth_keyspace_replication.'''
- num_nodes = helpers.num_nodes()
- datacenter = hookenv.config()['datacenter']
- with helpers.connect() as session:
- strategy_opts = helpers.get_auth_keyspace_replication(session)
- rf = int(strategy_opts.get(datacenter, -1))
- hookenv.log('system_auth rf={!r}'.format(strategy_opts))
- # If the node count has changed, we should change the rf.
- return rf != num_nodes
-
-
-@leader_only
-@action
-@authentication
-@coordinator.require('repair', needs_reset_auth_keyspace_replication)
-def reset_auth_keyspace_replication():
- # Cassandra requires you to manually set the replication factor of
- # the system_auth keyspace, to ensure availability and redundancy.
- # The recommendation is to set the replication factor so that every
- # node has a copy.
- num_nodes = helpers.num_nodes()
- datacenter = hookenv.config()['datacenter']
- with helpers.connect() as session:
- strategy_opts = helpers.get_auth_keyspace_replication(session)
- rf = int(strategy_opts.get(datacenter, -1))
- hookenv.log('system_auth rf={!r}'.format(strategy_opts))
- if rf != num_nodes:
- strategy_opts['class'] = 'NetworkTopologyStrategy'
- strategy_opts[datacenter] = num_nodes
- if 'replication_factor' in strategy_opts:
- del strategy_opts['replication_factor']
- helpers.set_auth_keyspace_replication(session, strategy_opts)
- if rf < num_nodes:
- # Increasing rf, need to run repair.
- helpers.repair_auth_keyspace()
- helpers.set_active()
-
-
-@action
-def store_unit_private_ip():
- '''Store the unit's private ip address, so we can tell if it changes.'''
- hookenv.config()['unit_private_ip'] = hookenv.unit_private_ip()
-
-
-def needs_restart():
- '''Return True if Cassandra is not running or needs to be restarted.'''
- if helpers.is_decommissioned():
- # Decommissioned nodes are never restarted. They remain up
- # telling everyone they are decommissioned.
- helpers.status_set('blocked', 'Decommissioned node')
- return False
-
- if not helpers.is_cassandra_running():
- if helpers.is_bootstrapped():
- helpers.status_set('waiting', 'Waiting for permission to start')
- else:
- helpers.status_set('waiting',
- 'Waiting for permission to bootstrap')
- return True
-
- config = hookenv.config()
-
- # If our IP address has changed, we need to restart.
- if config.changed('unit_private_ip'):
- helpers.status_set('waiting', 'IP address changed. '
- 'Waiting for restart permission.')
- return True
-
- # If the directory paths have changed, we need to migrate data
- # during a restart.
- storage = relations.StorageRelation()
- if storage.needs_remount():
- helpers.status_set(hookenv.status_get()[0],
- 'New mounts. Waiting for restart permission')
- return True
-
- # If any of these config items changed, a restart is required.
- for key in RESTART_REQUIRED_KEYS:
- if config.changed(key):
- hookenv.log('{} changed. Restart required.'.format(key))
- for key in RESTART_REQUIRED_KEYS:
- if config.changed(key):
- helpers.status_set(hookenv.status_get()[0],
- 'Config changes. '
- 'Waiting for restart permission.')
- return True
-
- # If we have new seeds, we should restart.
- new_seeds = helpers.get_seed_ips()
- if config.get('configured_seeds') != sorted(new_seeds):
- old_seeds = set(config.previous('configured_seeds') or [])
- changed = old_seeds.symmetric_difference(new_seeds)
- # We don't care about the local node in the changes.
- changed.discard(hookenv.unit_private_ip())
- if changed:
- helpers.status_set(hookenv.status_get()[0],
- 'Updated seeds {!r}. '
- 'Waiting for restart permission.'
- ''.format(new_seeds))
- return True
-
- hookenv.log('Restart not required')
- return False
-
-
-@action
-@coordinator.require('restart', needs_restart)
-def maybe_restart():
- '''Restart sequence.
-
- If a restart is needed, shutdown Cassandra, perform all pending operations
- that cannot be be done while Cassandra is live, and restart it.
- '''
- helpers.status_set('maintenance', 'Stopping Cassandra')
- helpers.stop_cassandra()
- helpers.remount_cassandra()
- helpers.ensure_database_directories()
- if helpers.peer_relid() and not helpers.is_bootstrapped():
- helpers.status_set('maintenance', 'Bootstrapping')
- else:
- helpers.status_set('maintenance', 'Starting Cassandra')
- helpers.start_cassandra()
-
-
-@action
-def post_bootstrap():
- '''Maintain state on if the node has bootstrapped into the cluster.
-
- Per documented procedure for adding new units to a cluster, wait 2
- minutes if the unit has just bootstrapped to ensure other units
- do not attempt bootstrap too soon. Also, wait until completed joining
- to ensure we keep the lock and ensure other nodes don't restart or
- bootstrap.
- '''
- if not helpers.is_bootstrapped():
- if coordinator.relid is not None:
- helpers.status_set('maintenance', 'Post-bootstrap 2 minute delay')
- hookenv.log('Post-bootstrap 2 minute delay')
- time.sleep(120) # Must wait 2 minutes between bootstrapping nodes.
-
- join_msg_set = False
- while True:
- status = helpers.get_node_status()
- if status == 'NORMAL':
- break
- elif status == 'JOINING':
- if not join_msg_set:
- helpers.status_set('maintenance', 'Still joining cluster')
- join_msg_set = True
- time.sleep(10)
- continue
- else:
- if status is None:
- helpers.status_set('blocked',
- 'Unexpectedly shutdown during '
- 'bootstrap')
- else:
- helpers.status_set('blocked',
- 'Failed to bootstrap ({})'
- ''.format(status))
- raise SystemExit(0)
-
- # Unconditionally call this to publish the bootstrapped flag to
- # the peer relation, as the first unit was bootstrapped before
- # the peer relation existed.
- helpers.set_bootstrapped()
-
-
-@action
-def stop_cassandra():
- helpers.stop_cassandra()
-
-
-@action
-def start_cassandra():
- helpers.start_cassandra()
-
-
-@leader_only
-@action
-@authentication
-def create_unit_superusers():
- # The leader creates and updates accounts for nodes, using the
- # encrypted password they provide in relations.PeerRelation. We
- # don't end up with unencrypted passwords leaving the unit, and we
- # don't need to restart Cassandra in no-auth mode which is slow and
- # I worry may cause issues interrupting the bootstrap.
- if not coordinator.relid:
- return # No peer relation, no requests yet.
-
- created_units = helpers.get_unit_superusers()
- uncreated_units = [u for u in hookenv.related_units(coordinator.relid)
- if u not in created_units]
- for peer in uncreated_units:
- rel = hookenv.relation_get(unit=peer, rid=coordinator.relid)
- username = rel.get('username')
- pwhash = rel.get('pwhash')
- if not username:
- continue
- hookenv.log('Creating {} account for {}'.format(username, peer))
- with helpers.connect() as session:
- helpers.ensure_user(session, username, pwhash, superuser=True)
- created_units.add(peer)
- helpers.set_unit_superusers(created_units)
-
-
-@action
-def reset_all_io_schedulers():
- dirs = helpers.get_all_database_directories()
- dirs = (dirs['data_file_directories'] + [dirs['commitlog_directory']] +
- [dirs['saved_caches_directory']])
- config = hookenv.config()
- for d in dirs:
- if os.path.isdir(d): # Directory may not exist yet.
- helpers.set_io_scheduler(config['io_scheduler'], d)
-
-
-def _client_credentials(relid):
- '''Return the client credentials used by relation relid.'''
- relinfo = hookenv.relation_get(unit=hookenv.local_unit(), rid=relid)
- username = relinfo.get('username')
- password = relinfo.get('password')
- if username is None or password is None:
- for unit in hookenv.related_units(coordinator.relid):
- try:
- relinfo = hookenv.relation_get(unit=unit, rid=relid)
- username = relinfo.get('username')
- password = relinfo.get('password')
- if username is not None and password is not None:
- return username, password
- except subprocess.CalledProcessError:
- pass # Assume the remote unit has not joined yet.
- return None, None
- else:
- return username, password
-
-
-def _publish_database_relation(relid, superuser):
- # The Casandra service needs to provide a common set of credentials
- # to a client unit. The leader creates these, if none of the other
- # units are found to have published them already (a previously elected
- # leader may have done this). The leader then tickles the other units,
- # firing a hook and giving them the opportunity to copy and publish
- # these credentials.
- username, password = _client_credentials(relid)
- if username is None:
- if hookenv.is_leader():
- # Credentials not set. The leader must generate them. We use
- # the service name so that database permissions remain valid
- # even after the relation is dropped and recreated, or the
- # juju environment rebuild and the database restored from
- # backups.
- service_name = helpers.get_service_name(relid)
- if not service_name:
- # Per Bug #1555261, we might not yet have related units,
- # so no way to calculate the remote service name and thus
- # the user.
- return # Try again later.
- username = 'juju_{}'.format(helpers.get_service_name(relid))
- if superuser:
- username += '_admin'
- password = host.pwgen()
- pwhash = helpers.encrypt_password(password)
- with helpers.connect() as session:
- helpers.ensure_user(session, username, pwhash, superuser)
- # Wake the peers, if any.
- helpers.leader_ping()
- else:
- return # No credentials yet. Nothing to do.
-
- # Publish the information the client needs on the relation where
- # they can find it.
- # - authentication credentials
- # - address and port
- # - cluster_name, so clients can differentiate multiple clusters
- # - datacenter + rack, so clients know what names they can use
- # when altering keyspace replication settings.
- config = hookenv.config()
- hookenv.relation_set(relid,
- username=username, password=password,
- host=hookenv.unit_public_ip(),
- native_transport_port=config['native_transport_port'],
- rpc_port=config['rpc_port'],
- cluster_name=config['cluster_name'],
- datacenter=config['datacenter'],
- rack=config['rack'])
-
-
-@action
-def publish_database_relations():
- for relid in hookenv.relation_ids('database'):
- _publish_database_relation(relid, superuser=False)
-
-
-@action
-def publish_database_admin_relations():
- for relid in hookenv.relation_ids('database-admin'):
- _publish_database_relation(relid, superuser=True)
-
-
-@action
-def install_maintenance_crontab():
- # Every unit should run repair once per week (at least once per
- # GCGraceSeconds, which defaults to 10 days but can be changed per
- # keyspace). # Distribute the repair time evenly over the week.
- unit_num = int(hookenv.local_unit().split('/')[-1])
- dow, hour, minute = helpers.week_spread(unit_num)
- contents = jinja.render('cassandra_maintenance_cron.tmpl', vars())
- cron_path = "/etc/cron.d/cassandra-maintenance"
- host.write_file(cron_path, contents.encode('US-ASCII'))
-
-
-@action
-def emit_cluster_info():
- helpers.emit_describe_cluster()
- helpers.emit_status()
- helpers.emit_netstats()
-
-
-@action
-def configure_firewall():
- '''Configure firewall rules using ufw.
-
- This is primarily to block access to the replication and JMX ports,
- as juju's default port access controls are not strict enough and
- allow access to the entire environment.
- '''
- config = hookenv.config()
- ufw.enable(soft_fail=True)
-
- # Enable SSH from anywhere, relying on Juju and external firewalls
- # to control access.
- ufw.service('ssh', 'open')
- ufw.service('nrpe', 'open') # Also NRPE for nagios checks.
- ufw.service('rsync', 'open') # Also rsync for data transfer and backups.
-
- # Clients need client access. These protocols are configured to
- # require authentication.
- client_keys = ['native_transport_port', 'rpc_port']
- client_ports = [config[key] for key in client_keys]
-
- # Peers need replication access. This protocols does not
- # require authentication, so firewall it from other nodes.
- peer_ports = [config['storage_port'], config['ssl_storage_port']]
-
- # Enable client access from anywhere. Juju and external firewalls
- # can still restrict this further of course (ie. 'juju expose').
- for key in client_keys:
- if config.changed(key) and config.previous(key) is not None:
- # First close old ports. We use this order in the unlikely case
- # someone is trying to swap the native and Thrift ports.
- ufw.service(config.previous(key), 'close')
- for port in client_ports:
- # Then open or close the configured ports.
- ufw.service(port, 'open')
-
- desired_rules = set() # ufw.grant_access/remove_access commands.
-
- # Rules for peers
- for relinfo in hookenv.relations_of_type('cluster'):
- if relinfo['private-address']:
- pa = hookenv._ensure_ip(relinfo['private-address'])
- for port in peer_ports:
- desired_rules.add((pa, 'any', port))
- # Rules for admin connections. We allow database-admin relations access
- # to the cluster communication ports so that tools like sstableloader
- # can run.
- for relinfo in hookenv.relations_of_type('database-admin'):
- if relinfo['private-address']:
- pa = hookenv._ensure_ip(relinfo['private-address'])
- for port in peer_ports:
- desired_rules.add((pa, 'any', port))
-
- previous_rules = set(tuple(rule) for rule in config.get('ufw_rules', []))
-
- # Close any rules previously opened that are no longer desired.
- for rule in sorted(list(previous_rules - desired_rules)):
- ufw.revoke_access(*rule)
-
- # Open all the desired rules.
- for rule in sorted(list(desired_rules)):
- ufw.grant_access(*rule)
-
- # Store our rules for next time. Note that this is inherantly racy -
- # this value is only persisted if the hook exits cleanly. If the
- # hook fails, then someone changes port configuration or IP
- # addresses change, then the failed hook retried, we can lose track
- # of previously granted rules and they will never be revoked. It is
- # impossible to remove this race entirely, so we stick with this
- # simple approach.
- config['ufw_rules'] = list(desired_rules) # A list because JSON.
-
-
-@action
-def nrpe_external_master_relation():
- ''' Configure the nrpe-external-master relation '''
- local_plugins = helpers.local_plugins_dir()
- if os.path.exists(local_plugins):
- src = os.path.join(hookenv.charm_dir(),
- "files", "check_cassandra_heap.sh")
- with open(src, 'rb') as f:
- host.write_file(os.path.join(local_plugins,
- 'check_cassandra_heap.sh'),
- f.read(), perms=0o555)
-
- nrpe_compat = nrpe.NRPE()
- conf = hookenv.config()
-
- cassandra_heap_warn = conf.get('nagios_heapchk_warn_pct')
- cassandra_heap_crit = conf.get('nagios_heapchk_crit_pct')
- if cassandra_heap_warn and cassandra_heap_crit:
- nrpe_compat.add_check(
- shortname="cassandra_heap",
- description="Check Cassandra Heap",
- check_cmd="check_cassandra_heap.sh localhost {} {}"
- "".format(cassandra_heap_warn, cassandra_heap_crit))
-
- cassandra_disk_warn = conf.get('nagios_disk_warn_pct')
- cassandra_disk_crit = conf.get('nagios_disk_crit_pct')
- dirs = helpers.get_all_database_directories()
- dirs = set(dirs['data_file_directories'] +
- [dirs['commitlog_directory'], dirs['saved_caches_directory']])
- # We need to check the space on the mountpoint, not on the actual
- # directory, as the nagios user won't have access to the actual directory.
- mounts = set(helpers.mountpoint(d) for d in dirs)
- for disk in mounts:
- check_name = re.sub('[^A-Za-z0-9_]', '_', disk)
- if cassandra_disk_warn and cassandra_disk_crit:
- shortname = "cassandra_disk{}".format(check_name)
- hookenv.log("Adding disk utilization check {}".format(shortname),
- DEBUG)
- nrpe_compat.add_check(
- shortname=shortname,
- description="Check Cassandra Disk {}".format(disk),
- check_cmd="check_disk -u GB -w {}% -c {}% -K 5% -p {}"
- "".format(cassandra_disk_warn, cassandra_disk_crit,
- disk))
- nrpe_compat.write()
-
-
-@leader_only
-@action
-def maintain_seeds():
- '''The leader needs to maintain the list of seed nodes'''
- seed_ips = helpers.get_seed_ips()
- hookenv.log('Current seeds == {!r}'.format(seed_ips), DEBUG)
-
- bootstrapped_ips = helpers.get_bootstrapped_ips()
- hookenv.log('Bootstrapped == {!r}'.format(bootstrapped_ips), DEBUG)
-
- # Remove any seeds that are no longer bootstrapped, such as dropped
- # units.
- seed_ips.intersection_update(bootstrapped_ips)
-
- # Add more bootstrapped nodes, if necessary, to get to our maximum
- # of 3 seeds.
- potential_seed_ips = list(reversed(sorted(bootstrapped_ips)))
- while len(seed_ips) < 3 and potential_seed_ips:
- seed_ips.add(potential_seed_ips.pop())
-
- # If there are no seeds or bootstrapped nodes, start with the leader. Us.
- if len(seed_ips) == 0:
- seed_ips.add(hookenv.unit_private_ip())
-
- hookenv.log('Updated seeds == {!r}'.format(seed_ips), DEBUG)
-
- hookenv.leader_set(seeds=','.join(sorted(seed_ips)))
-
-
-@leader_only
-@action
-@authentication
-def reset_default_password():
- if hookenv.leader_get('default_admin_password_changed'):
- hookenv.log('Default admin password already changed')
- return
-
- # Cassandra ships with well known credentials, rather than
- # providing a tool to reset credentials. This is a huge security
- # hole we must close.
- try:
- # We need a big timeout here, as the cassandra user actually
- # springs into existence some time after Cassandra has started
- # up and is accepting connections.
- with helpers.connect('cassandra', 'cassandra',
- timeout=120, auth_timeout=120) as session:
- # But before we close this security hole, we need to use these
- # credentials to create a different admin account for the
- # leader, allowing it to create accounts for other nodes as they
- # join. The alternative is restarting Cassandra without
- # authentication, which this charm will likely need to do in the
- # future when we allow Cassandra services to be related together.
- helpers.status_set('maintenance',
- 'Creating initial superuser account')
- username, password = helpers.superuser_credentials()
- pwhash = helpers.encrypt_password(password)
- helpers.ensure_user(session, username, pwhash, superuser=True)
- helpers.set_unit_superusers([hookenv.local_unit()])
-
- helpers.status_set('maintenance',
- 'Changing default admin password')
- helpers.query(session, 'ALTER USER cassandra WITH PASSWORD %s',
- cassandra.ConsistencyLevel.ALL, (host.pwgen(),))
- except cassandra.AuthenticationFailed:
- hookenv.log('Default superuser account already reset')
- try:
- with helpers.connect():
- hookenv.log("Leader's superuser account already created")
- except cassandra.AuthenticationFailed:
- # We have no known superuser credentials. Create the account
- # the hard, slow way. This will be the normal method
- # of creating the service's initial account when we allow
- # services to be related together.
- helpers.create_unit_superuser_hard()
-
- hookenv.leader_set(default_admin_password_changed=True)
-
-
-@action
-def set_active():
- # If we got this far, the unit is active. Update the status if it is
- # not already active. We don't do this unconditionally, as the charm
- # may be active but doing stuff, like active but waiting for restart
- # permission.
- if hookenv.status_get()[0] != 'active':
- helpers.set_active()
- else:
- hookenv.log('Unit status already active', DEBUG)
-
-
-@action
-@authentication
-def request_unit_superuser():
- relid = helpers.peer_relid()
- if relid is None:
- hookenv.log('Request deferred until peer relation exists')
- return
-
- relinfo = hookenv.relation_get(unit=hookenv.local_unit(),
- rid=relid)
- if relinfo and relinfo.get('username'):
- # We must avoid blindly setting the pwhash on the relation,
- # as we will likely get a different value everytime we
- # encrypt the password due to the random salt.
- hookenv.log('Superuser account request previously made')
- else:
- # Publish the requested superuser and hash to our peers.
- username, password = helpers.superuser_credentials()
- pwhash = helpers.encrypt_password(password)
- hookenv.relation_set(relid, username=username, pwhash=pwhash)
- hookenv.log('Requested superuser account creation')
-
-
-@action
-def update_etc_hosts():
- hostname = socket.gethostname()
- addr = hookenv.unit_private_ip()
- hosts_map = {addr: hostname}
- # only need to add myself to /etc/hosts
- helpers.update_hosts_file('/etc/hosts', hosts_map)
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/__init__.py b/charms/trusty/cassandra/hooks/charmhelpers/__init__.py
deleted file mode 100644
index f72e7f8..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/__init__.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-# Bootstrap charm-helpers, installing its dependencies if necessary using
-# only standard libraries.
-import subprocess
-import sys
-
-try:
- import six # flake8: noqa
-except ImportError:
- if sys.version_info.major == 2:
- subprocess.check_call(['apt-get', 'install', '-y', 'python-six'])
- else:
- subprocess.check_call(['apt-get', 'install', '-y', 'python3-six'])
- import six # flake8: noqa
-
-try:
- import yaml # flake8: noqa
-except ImportError:
- if sys.version_info.major == 2:
- subprocess.check_call(['apt-get', 'install', '-y', 'python-yaml'])
- else:
- subprocess.check_call(['apt-get', 'install', '-y', 'python3-yaml'])
- import yaml # flake8: noqa
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/contrib/__init__.py b/charms/trusty/cassandra/hooks/charmhelpers/contrib/__init__.py
deleted file mode 100644
index d1400a0..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/contrib/__init__.py
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/contrib/benchmark/__init__.py b/charms/trusty/cassandra/hooks/charmhelpers/contrib/benchmark/__init__.py
deleted file mode 100644
index 1d039ea..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/contrib/benchmark/__init__.py
+++ /dev/null
@@ -1,126 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import subprocess
-import time
-import os
-from distutils.spawn import find_executable
-
-from charmhelpers.core.hookenv import (
- in_relation_hook,
- relation_ids,
- relation_set,
- relation_get,
-)
-
-
-def action_set(key, val):
- if find_executable('action-set'):
- action_cmd = ['action-set']
-
- if isinstance(val, dict):
- for k, v in iter(val.items()):
- action_set('%s.%s' % (key, k), v)
- return True
-
- action_cmd.append('%s=%s' % (key, val))
- subprocess.check_call(action_cmd)
- return True
- return False
-
-
-class Benchmark():
- """
- Helper class for the `benchmark` interface.
-
- :param list actions: Define the actions that are also benchmarks
-
- From inside the benchmark-relation-changed hook, you would
- Benchmark(['memory', 'cpu', 'disk', 'smoke', 'custom'])
-
- Examples:
-
- siege = Benchmark(['siege'])
- siege.start()
- [... run siege ...]
- # The higher the score, the better the benchmark
- siege.set_composite_score(16.70, 'trans/sec', 'desc')
- siege.finish()
-
-
- """
-
- BENCHMARK_CONF = '/etc/benchmark.conf' # Replaced in testing
-
- required_keys = [
- 'hostname',
- 'port',
- 'graphite_port',
- 'graphite_endpoint',
- 'api_port'
- ]
-
- def __init__(self, benchmarks=None):
- if in_relation_hook():
- if benchmarks is not None:
- for rid in sorted(relation_ids('benchmark')):
- relation_set(relation_id=rid, relation_settings={
- 'benchmarks': ",".join(benchmarks)
- })
-
- # Check the relation data
- config = {}
- for key in self.required_keys:
- val = relation_get(key)
- if val is not None:
- config[key] = val
- else:
- # We don't have all of the required keys
- config = {}
- break
-
- if len(config):
- with open(self.BENCHMARK_CONF, 'w') as f:
- for key, val in iter(config.items()):
- f.write("%s=%s\n" % (key, val))
-
- @staticmethod
- def start():
- action_set('meta.start', time.strftime('%Y-%m-%dT%H:%M:%SZ'))
-
- """
- If the collectd charm is also installed, tell it to send a snapshot
- of the current profile data.
- """
- COLLECT_PROFILE_DATA = '/usr/local/bin/collect-profile-data'
- if os.path.exists(COLLECT_PROFILE_DATA):
- subprocess.check_output([COLLECT_PROFILE_DATA])
-
- @staticmethod
- def finish():
- action_set('meta.stop', time.strftime('%Y-%m-%dT%H:%M:%SZ'))
-
- @staticmethod
- def set_composite_score(value, units, direction='asc'):
- """
- Set the composite score for a benchmark run. This is a single number
- representative of the benchmark results. This could be the most
- important metric, or an amalgamation of metric scores.
- """
- return action_set(
- "meta.composite",
- {'value': value, 'units': units, 'direction': direction}
- )
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/contrib/charmsupport/__init__.py b/charms/trusty/cassandra/hooks/charmhelpers/contrib/charmsupport/__init__.py
deleted file mode 100644
index d1400a0..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/contrib/charmsupport/__init__.py
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/contrib/charmsupport/nrpe.py b/charms/trusty/cassandra/hooks/charmhelpers/contrib/charmsupport/nrpe.py
deleted file mode 100644
index 2f24642..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/contrib/charmsupport/nrpe.py
+++ /dev/null
@@ -1,398 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-"""Compatibility with the nrpe-external-master charm"""
-# Copyright 2012 Canonical Ltd.
-#
-# Authors:
-# Matthew Wedgwood <matthew.wedgwood@canonical.com>
-
-import subprocess
-import pwd
-import grp
-import os
-import glob
-import shutil
-import re
-import shlex
-import yaml
-
-from charmhelpers.core.hookenv import (
- config,
- local_unit,
- log,
- relation_ids,
- relation_set,
- relations_of_type,
-)
-
-from charmhelpers.core.host import service
-
-# This module adds compatibility with the nrpe-external-master and plain nrpe
-# subordinate charms. To use it in your charm:
-#
-# 1. Update metadata.yaml
-#
-# provides:
-# (...)
-# nrpe-external-master:
-# interface: nrpe-external-master
-# scope: container
-#
-# and/or
-#
-# provides:
-# (...)
-# local-monitors:
-# interface: local-monitors
-# scope: container
-
-#
-# 2. Add the following to config.yaml
-#
-# nagios_context:
-# default: "juju"
-# type: string
-# description: |
-# Used by the nrpe subordinate charms.
-# A string that will be prepended to instance name to set the host name
-# in nagios. So for instance the hostname would be something like:
-# juju-myservice-0
-# If you're running multiple environments with the same services in them
-# this allows you to differentiate between them.
-# nagios_servicegroups:
-# default: ""
-# type: string
-# description: |
-# A comma-separated list of nagios servicegroups.
-# If left empty, the nagios_context will be used as the servicegroup
-#
-# 3. Add custom checks (Nagios plugins) to files/nrpe-external-master
-#
-# 4. Update your hooks.py with something like this:
-#
-# from charmsupport.nrpe import NRPE
-# (...)
-# def update_nrpe_config():
-# nrpe_compat = NRPE()
-# nrpe_compat.add_check(
-# shortname = "myservice",
-# description = "Check MyService",
-# check_cmd = "check_http -w 2 -c 10 http://localhost"
-# )
-# nrpe_compat.add_check(
-# "myservice_other",
-# "Check for widget failures",
-# check_cmd = "/srv/myapp/scripts/widget_check"
-# )
-# nrpe_compat.write()
-#
-# def config_changed():
-# (...)
-# update_nrpe_config()
-#
-# def nrpe_external_master_relation_changed():
-# update_nrpe_config()
-#
-# def local_monitors_relation_changed():
-# update_nrpe_config()
-#
-# 5. ln -s hooks.py nrpe-external-master-relation-changed
-# ln -s hooks.py local-monitors-relation-changed
-
-
-class CheckException(Exception):
- pass
-
-
-class Check(object):
- shortname_re = '[A-Za-z0-9-_]+$'
- service_template = ("""
-#---------------------------------------------------
-# This file is Juju managed
-#---------------------------------------------------
-define service {{
- use active-service
- host_name {nagios_hostname}
- service_description {nagios_hostname}[{shortname}] """
- """{description}
- check_command check_nrpe!{command}
- servicegroups {nagios_servicegroup}
-}}
-""")
-
- def __init__(self, shortname, description, check_cmd):
- super(Check, self).__init__()
- # XXX: could be better to calculate this from the service name
- if not re.match(self.shortname_re, shortname):
- raise CheckException("shortname must match {}".format(
- Check.shortname_re))
- self.shortname = shortname
- self.command = "check_{}".format(shortname)
- # Note: a set of invalid characters is defined by the
- # Nagios server config
- # The default is: illegal_object_name_chars=`~!$%^&*"|'<>?,()=
- self.description = description
- self.check_cmd = self._locate_cmd(check_cmd)
-
- def _get_check_filename(self):
- return os.path.join(NRPE.nrpe_confdir, '{}.cfg'.format(self.command))
-
- def _get_service_filename(self, hostname):
- return os.path.join(NRPE.nagios_exportdir,
- 'service__{}_{}.cfg'.format(hostname, self.command))
-
- def _locate_cmd(self, check_cmd):
- search_path = (
- '/usr/lib/nagios/plugins',
- '/usr/local/lib/nagios/plugins',
- )
- parts = shlex.split(check_cmd)
- for path in search_path:
- if os.path.exists(os.path.join(path, parts[0])):
- command = os.path.join(path, parts[0])
- if len(parts) > 1:
- command += " " + " ".join(parts[1:])
- return command
- log('Check command not found: {}'.format(parts[0]))
- return ''
-
- def _remove_service_files(self):
- if not os.path.exists(NRPE.nagios_exportdir):
- return
- for f in os.listdir(NRPE.nagios_exportdir):
- if f.endswith('_{}.cfg'.format(self.command)):
- os.remove(os.path.join(NRPE.nagios_exportdir, f))
-
- def remove(self, hostname):
- nrpe_check_file = self._get_check_filename()
- if os.path.exists(nrpe_check_file):
- os.remove(nrpe_check_file)
- self._remove_service_files()
-
- def write(self, nagios_context, hostname, nagios_servicegroups):
- nrpe_check_file = self._get_check_filename()
- with open(nrpe_check_file, 'w') as nrpe_check_config:
- nrpe_check_config.write("# check {}\n".format(self.shortname))
- nrpe_check_config.write("command[{}]={}\n".format(
- self.command, self.check_cmd))
-
- if not os.path.exists(NRPE.nagios_exportdir):
- log('Not writing service config as {} is not accessible'.format(
- NRPE.nagios_exportdir))
- else:
- self.write_service_config(nagios_context, hostname,
- nagios_servicegroups)
-
- def write_service_config(self, nagios_context, hostname,
- nagios_servicegroups):
- self._remove_service_files()
-
- templ_vars = {
- 'nagios_hostname': hostname,
- 'nagios_servicegroup': nagios_servicegroups,
- 'description': self.description,
- 'shortname': self.shortname,
- 'command': self.command,
- }
- nrpe_service_text = Check.service_template.format(**templ_vars)
- nrpe_service_file = self._get_service_filename(hostname)
- with open(nrpe_service_file, 'w') as nrpe_service_config:
- nrpe_service_config.write(str(nrpe_service_text))
-
- def run(self):
- subprocess.call(self.check_cmd)
-
-
-class NRPE(object):
- nagios_logdir = '/var/log/nagios'
- nagios_exportdir = '/var/lib/nagios/export'
- nrpe_confdir = '/etc/nagios/nrpe.d'
-
- def __init__(self, hostname=None):
- super(NRPE, self).__init__()
- self.config = config()
- self.nagios_context = self.config['nagios_context']
- if 'nagios_servicegroups' in self.config and self.config['nagios_servicegroups']:
- self.nagios_servicegroups = self.config['nagios_servicegroups']
- else:
- self.nagios_servicegroups = self.nagios_context
- self.unit_name = local_unit().replace('/', '-')
- if hostname:
- self.hostname = hostname
- else:
- nagios_hostname = get_nagios_hostname()
- if nagios_hostname:
- self.hostname = nagios_hostname
- else:
- self.hostname = "{}-{}".format(self.nagios_context, self.unit_name)
- self.checks = []
-
- def add_check(self, *args, **kwargs):
- self.checks.append(Check(*args, **kwargs))
-
- def remove_check(self, *args, **kwargs):
- if kwargs.get('shortname') is None:
- raise ValueError('shortname of check must be specified')
-
- # Use sensible defaults if they're not specified - these are not
- # actually used during removal, but they're required for constructing
- # the Check object; check_disk is chosen because it's part of the
- # nagios-plugins-basic package.
- if kwargs.get('check_cmd') is None:
- kwargs['check_cmd'] = 'check_disk'
- if kwargs.get('description') is None:
- kwargs['description'] = ''
-
- check = Check(*args, **kwargs)
- check.remove(self.hostname)
-
- def write(self):
- try:
- nagios_uid = pwd.getpwnam('nagios').pw_uid
- nagios_gid = grp.getgrnam('nagios').gr_gid
- except:
- log("Nagios user not set up, nrpe checks not updated")
- return
-
- if not os.path.exists(NRPE.nagios_logdir):
- os.mkdir(NRPE.nagios_logdir)
- os.chown(NRPE.nagios_logdir, nagios_uid, nagios_gid)
-
- nrpe_monitors = {}
- monitors = {"monitors": {"remote": {"nrpe": nrpe_monitors}}}
- for nrpecheck in self.checks:
- nrpecheck.write(self.nagios_context, self.hostname,
- self.nagios_servicegroups)
- nrpe_monitors[nrpecheck.shortname] = {
- "command": nrpecheck.command,
- }
-
- service('restart', 'nagios-nrpe-server')
-
- monitor_ids = relation_ids("local-monitors") + \
- relation_ids("nrpe-external-master")
- for rid in monitor_ids:
- relation_set(relation_id=rid, monitors=yaml.dump(monitors))
-
-
-def get_nagios_hostcontext(relation_name='nrpe-external-master'):
- """
- Query relation with nrpe subordinate, return the nagios_host_context
-
- :param str relation_name: Name of relation nrpe sub joined to
- """
- for rel in relations_of_type(relation_name):
- if 'nagios_host_context' in rel:
- return rel['nagios_host_context']
-
-
-def get_nagios_hostname(relation_name='nrpe-external-master'):
- """
- Query relation with nrpe subordinate, return the nagios_hostname
-
- :param str relation_name: Name of relation nrpe sub joined to
- """
- for rel in relations_of_type(relation_name):
- if 'nagios_hostname' in rel:
- return rel['nagios_hostname']
-
-
-def get_nagios_unit_name(relation_name='nrpe-external-master'):
- """
- Return the nagios unit name prepended with host_context if needed
-
- :param str relation_name: Name of relation nrpe sub joined to
- """
- host_context = get_nagios_hostcontext(relation_name)
- if host_context:
- unit = "%s:%s" % (host_context, local_unit())
- else:
- unit = local_unit()
- return unit
-
-
-def add_init_service_checks(nrpe, services, unit_name):
- """
- Add checks for each service in list
-
- :param NRPE nrpe: NRPE object to add check to
- :param list services: List of services to check
- :param str unit_name: Unit name to use in check description
- """
- for svc in services:
- upstart_init = '/etc/init/%s.conf' % svc
- sysv_init = '/etc/init.d/%s' % svc
- if os.path.exists(upstart_init):
- # Don't add a check for these services from neutron-gateway
- if svc not in ['ext-port', 'os-charm-phy-nic-mtu']:
- nrpe.add_check(
- shortname=svc,
- description='process check {%s}' % unit_name,
- check_cmd='check_upstart_job %s' % svc
- )
- elif os.path.exists(sysv_init):
- cronpath = '/etc/cron.d/nagios-service-check-%s' % svc
- cron_file = ('*/5 * * * * root '
- '/usr/local/lib/nagios/plugins/check_exit_status.pl '
- '-s /etc/init.d/%s status > '
- '/var/lib/nagios/service-check-%s.txt\n' % (svc,
- svc)
- )
- f = open(cronpath, 'w')
- f.write(cron_file)
- f.close()
- nrpe.add_check(
- shortname=svc,
- description='process check {%s}' % unit_name,
- check_cmd='check_status_file.py -f '
- '/var/lib/nagios/service-check-%s.txt' % svc,
- )
-
-
-def copy_nrpe_checks():
- """
- Copy the nrpe checks into place
-
- """
- NAGIOS_PLUGINS = '/usr/local/lib/nagios/plugins'
- nrpe_files_dir = os.path.join(os.getenv('CHARM_DIR'), 'hooks',
- 'charmhelpers', 'contrib', 'openstack',
- 'files')
-
- if not os.path.exists(NAGIOS_PLUGINS):
- os.makedirs(NAGIOS_PLUGINS)
- for fname in glob.glob(os.path.join(nrpe_files_dir, "check_*")):
- if os.path.isfile(fname):
- shutil.copy2(fname,
- os.path.join(NAGIOS_PLUGINS, os.path.basename(fname)))
-
-
-def add_haproxy_checks(nrpe, unit_name):
- """
- Add checks for each service in list
-
- :param NRPE nrpe: NRPE object to add check to
- :param str unit_name: Unit name to use in check description
- """
- nrpe.add_check(
- shortname='haproxy_servers',
- description='Check HAProxy {%s}' % unit_name,
- check_cmd='check_haproxy.sh')
- nrpe.add_check(
- shortname='haproxy_queue',
- description='Check HAProxy queue depth {%s}' % unit_name,
- check_cmd='check_haproxy_queue_depth.sh')
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/contrib/charmsupport/volumes.py b/charms/trusty/cassandra/hooks/charmhelpers/contrib/charmsupport/volumes.py
deleted file mode 100644
index 320961b..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/contrib/charmsupport/volumes.py
+++ /dev/null
@@ -1,175 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-'''
-Functions for managing volumes in juju units. One volume is supported per unit.
-Subordinates may have their own storage, provided it is on its own partition.
-
-Configuration stanzas::
-
- volume-ephemeral:
- type: boolean
- default: true
- description: >
- If false, a volume is mounted as sepecified in "volume-map"
- If true, ephemeral storage will be used, meaning that log data
- will only exist as long as the machine. YOU HAVE BEEN WARNED.
- volume-map:
- type: string
- default: {}
- description: >
- YAML map of units to device names, e.g:
- "{ rsyslog/0: /dev/vdb, rsyslog/1: /dev/vdb }"
- Service units will raise a configure-error if volume-ephemeral
- is 'true' and no volume-map value is set. Use 'juju set' to set a
- value and 'juju resolved' to complete configuration.
-
-Usage::
-
- from charmsupport.volumes import configure_volume, VolumeConfigurationError
- from charmsupport.hookenv import log, ERROR
- def post_mount_hook():
- stop_service('myservice')
- def post_mount_hook():
- start_service('myservice')
-
- if __name__ == '__main__':
- try:
- configure_volume(before_change=pre_mount_hook,
- after_change=post_mount_hook)
- except VolumeConfigurationError:
- log('Storage could not be configured', ERROR)
-
-'''
-
-# XXX: Known limitations
-# - fstab is neither consulted nor updated
-
-import os
-from charmhelpers.core import hookenv
-from charmhelpers.core import host
-import yaml
-
-
-MOUNT_BASE = '/srv/juju/volumes'
-
-
-class VolumeConfigurationError(Exception):
- '''Volume configuration data is missing or invalid'''
- pass
-
-
-def get_config():
- '''Gather and sanity-check volume configuration data'''
- volume_config = {}
- config = hookenv.config()
-
- errors = False
-
- if config.get('volume-ephemeral') in (True, 'True', 'true', 'Yes', 'yes'):
- volume_config['ephemeral'] = True
- else:
- volume_config['ephemeral'] = False
-
- try:
- volume_map = yaml.safe_load(config.get('volume-map', '{}'))
- except yaml.YAMLError as e:
- hookenv.log("Error parsing YAML volume-map: {}".format(e),
- hookenv.ERROR)
- errors = True
- if volume_map is None:
- # probably an empty string
- volume_map = {}
- elif not isinstance(volume_map, dict):
- hookenv.log("Volume-map should be a dictionary, not {}".format(
- type(volume_map)))
- errors = True
-
- volume_config['device'] = volume_map.get(os.environ['JUJU_UNIT_NAME'])
- if volume_config['device'] and volume_config['ephemeral']:
- # asked for ephemeral storage but also defined a volume ID
- hookenv.log('A volume is defined for this unit, but ephemeral '
- 'storage was requested', hookenv.ERROR)
- errors = True
- elif not volume_config['device'] and not volume_config['ephemeral']:
- # asked for permanent storage but did not define volume ID
- hookenv.log('Ephemeral storage was requested, but there is no volume '
- 'defined for this unit.', hookenv.ERROR)
- errors = True
-
- unit_mount_name = hookenv.local_unit().replace('/', '-')
- volume_config['mountpoint'] = os.path.join(MOUNT_BASE, unit_mount_name)
-
- if errors:
- return None
- return volume_config
-
-
-def mount_volume(config):
- if os.path.exists(config['mountpoint']):
- if not os.path.isdir(config['mountpoint']):
- hookenv.log('Not a directory: {}'.format(config['mountpoint']))
- raise VolumeConfigurationError()
- else:
- host.mkdir(config['mountpoint'])
- if os.path.ismount(config['mountpoint']):
- unmount_volume(config)
- if not host.mount(config['device'], config['mountpoint'], persist=True):
- raise VolumeConfigurationError()
-
-
-def unmount_volume(config):
- if os.path.ismount(config['mountpoint']):
- if not host.umount(config['mountpoint'], persist=True):
- raise VolumeConfigurationError()
-
-
-def managed_mounts():
- '''List of all mounted managed volumes'''
- return filter(lambda mount: mount[0].startswith(MOUNT_BASE), host.mounts())
-
-
-def configure_volume(before_change=lambda: None, after_change=lambda: None):
- '''Set up storage (or don't) according to the charm's volume configuration.
- Returns the mount point or "ephemeral". before_change and after_change
- are optional functions to be called if the volume configuration changes.
- '''
-
- config = get_config()
- if not config:
- hookenv.log('Failed to read volume configuration', hookenv.CRITICAL)
- raise VolumeConfigurationError()
-
- if config['ephemeral']:
- if os.path.ismount(config['mountpoint']):
- before_change()
- unmount_volume(config)
- after_change()
- return 'ephemeral'
- else:
- # persistent storage
- if os.path.ismount(config['mountpoint']):
- mounts = dict(managed_mounts())
- if mounts.get(config['mountpoint']) != config['device']:
- before_change()
- unmount_volume(config)
- mount_volume(config)
- after_change()
- else:
- before_change()
- mount_volume(config)
- after_change()
- return config['mountpoint']
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/contrib/network/__init__.py b/charms/trusty/cassandra/hooks/charmhelpers/contrib/network/__init__.py
deleted file mode 100644
index d1400a0..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/contrib/network/__init__.py
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/contrib/network/ufw.py b/charms/trusty/cassandra/hooks/charmhelpers/contrib/network/ufw.py
deleted file mode 100644
index b65d963..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/contrib/network/ufw.py
+++ /dev/null
@@ -1,318 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-"""
-This module contains helpers to add and remove ufw rules.
-
-Examples:
-
-- open SSH port for subnet 10.0.3.0/24:
-
- >>> from charmhelpers.contrib.network import ufw
- >>> ufw.enable()
- >>> ufw.grant_access(src='10.0.3.0/24', dst='any', port='22', proto='tcp')
-
-- open service by name as defined in /etc/services:
-
- >>> from charmhelpers.contrib.network import ufw
- >>> ufw.enable()
- >>> ufw.service('ssh', 'open')
-
-- close service by port number:
-
- >>> from charmhelpers.contrib.network import ufw
- >>> ufw.enable()
- >>> ufw.service('4949', 'close') # munin
-"""
-import re
-import os
-import subprocess
-
-from charmhelpers.core import hookenv
-from charmhelpers.core.kernel import modprobe, is_module_loaded
-
-__author__ = "Felipe Reyes <felipe.reyes@canonical.com>"
-
-
-class UFWError(Exception):
- pass
-
-
-class UFWIPv6Error(UFWError):
- pass
-
-
-def is_enabled():
- """
- Check if `ufw` is enabled
-
- :returns: True if ufw is enabled
- """
- output = subprocess.check_output(['ufw', 'status'],
- universal_newlines=True,
- env={'LANG': 'en_US',
- 'PATH': os.environ['PATH']})
-
- m = re.findall(r'^Status: active\n', output, re.M)
-
- return len(m) >= 1
-
-
-def is_ipv6_ok(soft_fail=False):
- """
- Check if IPv6 support is present and ip6tables functional
-
- :param soft_fail: If set to True and IPv6 support is broken, then reports
- that the host doesn't have IPv6 support, otherwise a
- UFWIPv6Error exception is raised.
- :returns: True if IPv6 is working, False otherwise
- """
-
- # do we have IPv6 in the machine?
- if os.path.isdir('/proc/sys/net/ipv6'):
- # is ip6tables kernel module loaded?
- if not is_module_loaded('ip6_tables'):
- # ip6tables support isn't complete, let's try to load it
- try:
- modprobe('ip6_tables')
- # great, we can load the module
- return True
- except subprocess.CalledProcessError as ex:
- hookenv.log("Couldn't load ip6_tables module: %s" % ex.output,
- level="WARN")
- # we are in a world where ip6tables isn't working
- if soft_fail:
- # so we inform that the machine doesn't have IPv6
- return False
- else:
- raise UFWIPv6Error("IPv6 firewall support broken")
- else:
- # the module is present :)
- return True
-
- else:
- # the system doesn't have IPv6
- return False
-
-
-def disable_ipv6():
- """
- Disable ufw IPv6 support in /etc/default/ufw
- """
- exit_code = subprocess.call(['sed', '-i', 's/IPV6=.*/IPV6=no/g',
- '/etc/default/ufw'])
- if exit_code == 0:
- hookenv.log('IPv6 support in ufw disabled', level='INFO')
- else:
- hookenv.log("Couldn't disable IPv6 support in ufw", level="ERROR")
- raise UFWError("Couldn't disable IPv6 support in ufw")
-
-
-def enable(soft_fail=False):
- """
- Enable ufw
-
- :param soft_fail: If set to True silently disables IPv6 support in ufw,
- otherwise a UFWIPv6Error exception is raised when IP6
- support is broken.
- :returns: True if ufw is successfully enabled
- """
- if is_enabled():
- return True
-
- if not is_ipv6_ok(soft_fail):
- disable_ipv6()
-
- output = subprocess.check_output(['ufw', 'enable'],
- universal_newlines=True,
- env={'LANG': 'en_US',
- 'PATH': os.environ['PATH']})
-
- m = re.findall('^Firewall is active and enabled on system startup\n',
- output, re.M)
- hookenv.log(output, level='DEBUG')
-
- if len(m) == 0:
- hookenv.log("ufw couldn't be enabled", level='WARN')
- return False
- else:
- hookenv.log("ufw enabled", level='INFO')
- return True
-
-
-def disable():
- """
- Disable ufw
-
- :returns: True if ufw is successfully disabled
- """
- if not is_enabled():
- return True
-
- output = subprocess.check_output(['ufw', 'disable'],
- universal_newlines=True,
- env={'LANG': 'en_US',
- 'PATH': os.environ['PATH']})
-
- m = re.findall(r'^Firewall stopped and disabled on system startup\n',
- output, re.M)
- hookenv.log(output, level='DEBUG')
-
- if len(m) == 0:
- hookenv.log("ufw couldn't be disabled", level='WARN')
- return False
- else:
- hookenv.log("ufw disabled", level='INFO')
- return True
-
-
-def default_policy(policy='deny', direction='incoming'):
- """
- Changes the default policy for traffic `direction`
-
- :param policy: allow, deny or reject
- :param direction: traffic direction, possible values: incoming, outgoing,
- routed
- """
- if policy not in ['allow', 'deny', 'reject']:
- raise UFWError(('Unknown policy %s, valid values: '
- 'allow, deny, reject') % policy)
-
- if direction not in ['incoming', 'outgoing', 'routed']:
- raise UFWError(('Unknown direction %s, valid values: '
- 'incoming, outgoing, routed') % direction)
-
- output = subprocess.check_output(['ufw', 'default', policy, direction],
- universal_newlines=True,
- env={'LANG': 'en_US',
- 'PATH': os.environ['PATH']})
- hookenv.log(output, level='DEBUG')
-
- m = re.findall("^Default %s policy changed to '%s'\n" % (direction,
- policy),
- output, re.M)
- if len(m) == 0:
- hookenv.log("ufw couldn't change the default policy to %s for %s"
- % (policy, direction), level='WARN')
- return False
- else:
- hookenv.log("ufw default policy for %s changed to %s"
- % (direction, policy), level='INFO')
- return True
-
-
-def modify_access(src, dst='any', port=None, proto=None, action='allow',
- index=None):
- """
- Grant access to an address or subnet
-
- :param src: address (e.g. 192.168.1.234) or subnet
- (e.g. 192.168.1.0/24).
- :param dst: destiny of the connection, if the machine has multiple IPs and
- connections to only one of those have to accepted this is the
- field has to be set.
- :param port: destiny port
- :param proto: protocol (tcp or udp)
- :param action: `allow` or `delete`
- :param index: if different from None the rule is inserted at the given
- `index`.
- """
- if not is_enabled():
- hookenv.log('ufw is disabled, skipping modify_access()', level='WARN')
- return
-
- if action == 'delete':
- cmd = ['ufw', 'delete', 'allow']
- elif index is not None:
- cmd = ['ufw', 'insert', str(index), action]
- else:
- cmd = ['ufw', action]
-
- if src is not None:
- cmd += ['from', src]
-
- if dst is not None:
- cmd += ['to', dst]
-
- if port is not None:
- cmd += ['port', str(port)]
-
- if proto is not None:
- cmd += ['proto', proto]
-
- hookenv.log('ufw {}: {}'.format(action, ' '.join(cmd)), level='DEBUG')
- p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
- (stdout, stderr) = p.communicate()
-
- hookenv.log(stdout, level='INFO')
-
- if p.returncode != 0:
- hookenv.log(stderr, level='ERROR')
- hookenv.log('Error running: {}, exit code: {}'.format(' '.join(cmd),
- p.returncode),
- level='ERROR')
-
-
-def grant_access(src, dst='any', port=None, proto=None, index=None):
- """
- Grant access to an address or subnet
-
- :param src: address (e.g. 192.168.1.234) or subnet
- (e.g. 192.168.1.0/24).
- :param dst: destiny of the connection, if the machine has multiple IPs and
- connections to only one of those have to accepted this is the
- field has to be set.
- :param port: destiny port
- :param proto: protocol (tcp or udp)
- :param index: if different from None the rule is inserted at the given
- `index`.
- """
- return modify_access(src, dst=dst, port=port, proto=proto, action='allow',
- index=index)
-
-
-def revoke_access(src, dst='any', port=None, proto=None):
- """
- Revoke access to an address or subnet
-
- :param src: address (e.g. 192.168.1.234) or subnet
- (e.g. 192.168.1.0/24).
- :param dst: destiny of the connection, if the machine has multiple IPs and
- connections to only one of those have to accepted this is the
- field has to be set.
- :param port: destiny port
- :param proto: protocol (tcp or udp)
- """
- return modify_access(src, dst=dst, port=port, proto=proto, action='delete')
-
-
-def service(name, action):
- """
- Open/close access to a service
-
- :param name: could be a service name defined in `/etc/services` or a port
- number.
- :param action: `open` or `close`
- """
- if action == 'open':
- subprocess.check_output(['ufw', 'allow', str(name)],
- universal_newlines=True)
- elif action == 'close':
- subprocess.check_output(['ufw', 'delete', 'allow', str(name)],
- universal_newlines=True)
- else:
- raise UFWError(("'{}' not supported, use 'allow' "
- "or 'delete'").format(action))
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/contrib/templating/__init__.py b/charms/trusty/cassandra/hooks/charmhelpers/contrib/templating/__init__.py
deleted file mode 100644
index d1400a0..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/contrib/templating/__init__.py
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/contrib/templating/jinja.py b/charms/trusty/cassandra/hooks/charmhelpers/contrib/templating/jinja.py
deleted file mode 100644
index c5efb16..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/contrib/templating/jinja.py
+++ /dev/null
@@ -1,40 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-"""
-Templating using the python-jinja2 package.
-"""
-import six
-from charmhelpers.fetch import apt_install, apt_update
-try:
- import jinja2
-except ImportError:
- apt_update(fatal=True)
- if six.PY3:
- apt_install(["python3-jinja2"], fatal=True)
- else:
- apt_install(["python-jinja2"], fatal=True)
- import jinja2
-
-
-DEFAULT_TEMPLATES_DIR = 'templates'
-
-
-def render(template_name, context, template_dir=DEFAULT_TEMPLATES_DIR):
- templates = jinja2.Environment(
- loader=jinja2.FileSystemLoader(template_dir))
- template = templates.get_template(template_name)
- return template.render(context)
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/coordinator.py b/charms/trusty/cassandra/hooks/charmhelpers/coordinator.py
deleted file mode 100644
index 0303c3f..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/coordinator.py
+++ /dev/null
@@ -1,607 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-'''
-The coordinator module allows you to use Juju's leadership feature to
-coordinate operations between units of a service.
-
-Behavior is defined in subclasses of coordinator.BaseCoordinator.
-One implementation is provided (coordinator.Serial), which allows an
-operation to be run on a single unit at a time, on a first come, first
-served basis. You can trivially define more complex behavior by
-subclassing BaseCoordinator or Serial.
-
-:author: Stuart Bishop <stuart.bishop@canonical.com>
-
-
-Services Framework Usage
-========================
-
-Ensure a peers relation is defined in metadata.yaml. Instantiate a
-BaseCoordinator subclass before invoking ServiceManager.manage().
-Ensure that ServiceManager.manage() is wired up to the leader-elected,
-leader-settings-changed, peers relation-changed and peers
-relation-departed hooks in addition to any other hooks you need, or your
-service will deadlock.
-
-Ensure calls to acquire() are guarded, so that locks are only requested
-when they are really needed (and thus hooks only triggered when necessary).
-Failing to do this and calling acquire() unconditionally will put your unit
-into a hook loop. Calls to granted() do not need to be guarded.
-
-For example::
-
- from charmhelpers.core import hookenv, services
- from charmhelpers import coordinator
-
- def maybe_restart(servicename):
- serial = coordinator.Serial()
- if needs_restart():
- serial.acquire('restart')
- if serial.granted('restart'):
- hookenv.service_restart(servicename)
-
- services = [dict(service='servicename',
- data_ready=[maybe_restart])]
-
- if __name__ == '__main__':
- _ = coordinator.Serial() # Must instantiate before manager.manage()
- manager = services.ServiceManager(services)
- manager.manage()
-
-
-You can implement a similar pattern using a decorator. If the lock has
-not been granted, an attempt to acquire() it will be made if the guard
-function returns True. If the lock has been granted, the decorated function
-is run as normal::
-
- from charmhelpers.core import hookenv, services
- from charmhelpers import coordinator
-
- serial = coordinator.Serial() # Global, instatiated on module import.
-
- def needs_restart():
- [ ... Introspect state. Return True if restart is needed ... ]
-
- @serial.require('restart', needs_restart)
- def maybe_restart(servicename):
- hookenv.service_restart(servicename)
-
- services = [dict(service='servicename',
- data_ready=[maybe_restart])]
-
- if __name__ == '__main__':
- manager = services.ServiceManager(services)
- manager.manage()
-
-
-Traditional Usage
-=================
-
-Ensure a peers relation is defined in metadata.yaml.
-
-If you are using charmhelpers.core.hookenv.Hooks, ensure that a
-BaseCoordinator subclass is instantiated before calling Hooks.execute.
-
-If you are not using charmhelpers.core.hookenv.Hooks, ensure
-that a BaseCoordinator subclass is instantiated and its handle()
-method called at the start of all your hooks.
-
-For example::
-
- import sys
- from charmhelpers.core import hookenv
- from charmhelpers import coordinator
-
- hooks = hookenv.Hooks()
-
- def maybe_restart():
- serial = coordinator.Serial()
- if serial.granted('restart'):
- hookenv.service_restart('myservice')
-
- @hooks.hook
- def config_changed():
- update_config()
- serial = coordinator.Serial()
- if needs_restart():
- serial.acquire('restart'):
- maybe_restart()
-
- # Cluster hooks must be wired up.
- @hooks.hook('cluster-relation-changed', 'cluster-relation-departed')
- def cluster_relation_changed():
- maybe_restart()
-
- # Leader hooks must be wired up.
- @hooks.hook('leader-elected', 'leader-settings-changed')
- def leader_settings_changed():
- maybe_restart()
-
- [ ... repeat for *all* other hooks you are using ... ]
-
- if __name__ == '__main__':
- _ = coordinator.Serial() # Must instantiate before execute()
- hooks.execute(sys.argv)
-
-
-You can also use the require decorator. If the lock has not been granted,
-an attempt to acquire() it will be made if the guard function returns True.
-If the lock has been granted, the decorated function is run as normal::
-
- from charmhelpers.core import hookenv
-
- hooks = hookenv.Hooks()
- serial = coordinator.Serial() # Must instantiate before execute()
-
- @require('restart', needs_restart)
- def maybe_restart():
- hookenv.service_restart('myservice')
-
- @hooks.hook('install', 'config-changed', 'upgrade-charm',
- # Peers and leader hooks must be wired up.
- 'cluster-relation-changed', 'cluster-relation-departed',
- 'leader-elected', 'leader-settings-changed')
- def default_hook():
- [...]
- maybe_restart()
-
- if __name__ == '__main__':
- hooks.execute()
-
-
-Details
-=======
-
-A simple API is provided similar to traditional locking APIs. A lock
-may be requested using the acquire() method, and the granted() method
-may be used do to check if a lock previously requested by acquire() has
-been granted. It doesn't matter how many times acquire() is called in a
-hook.
-
-Locks are released at the end of the hook they are acquired in. This may
-be the current hook if the unit is leader and the lock is free. It is
-more likely a future hook (probably leader-settings-changed, possibly
-the peers relation-changed or departed hook, potentially any hook).
-
-Whenever a charm needs to perform a coordinated action it will acquire()
-the lock and perform the action immediately if acquisition is
-successful. It will also need to perform the same action in every other
-hook if the lock has been granted.
-
-
-Grubby Details
---------------
-
-Why do you need to be able to perform the same action in every hook?
-If the unit is the leader, then it may be able to grant its own lock
-and perform the action immediately in the source hook. If the unit is
-the leader and cannot immediately grant the lock, then its only
-guaranteed chance of acquiring the lock is in the peers relation-joined,
-relation-changed or peers relation-departed hooks when another unit has
-released it (the only channel to communicate to the leader is the peers
-relation). If the unit is not the leader, then it is unlikely the lock
-is granted in the source hook (a previous hook must have also made the
-request for this to happen). A non-leader is notified about the lock via
-leader settings. These changes may be visible in any hook, even before
-the leader-settings-changed hook has been invoked. Or the requesting
-unit may be promoted to leader after making a request, in which case the
-lock may be granted in leader-elected or in a future peers
-relation-changed or relation-departed hook.
-
-This could be simpler if leader-settings-changed was invoked on the
-leader. We could then never grant locks except in
-leader-settings-changed hooks giving one place for the operation to be
-performed. Unfortunately this is not the case with Juju 1.23 leadership.
-
-But of course, this doesn't really matter to most people as most people
-seem to prefer the Services Framework or similar reset-the-world
-approaches, rather than the twisty maze of attempting to deduce what
-should be done based on what hook happens to be running (which always
-seems to evolve into reset-the-world anyway when the charm grows beyond
-the trivial).
-
-I chose not to implement a callback model, where a callback was passed
-to acquire to be executed when the lock is granted, because the callback
-may become invalid between making the request and the lock being granted
-due to an upgrade-charm being run in the interim. And it would create
-restrictions, such no lambdas, callback defined at the top level of a
-module, etc. Still, we could implement it on top of what is here, eg.
-by adding a defer decorator that stores a pickle of itself to disk and
-have BaseCoordinator unpickle and execute them when the locks are granted.
-'''
-from datetime import datetime
-from functools import wraps
-import json
-import os.path
-
-from six import with_metaclass
-
-from charmhelpers.core import hookenv
-
-
-# We make BaseCoordinator and subclasses singletons, so that if we
-# need to spill to local storage then only a single instance does so,
-# rather than having multiple instances stomp over each other.
-class Singleton(type):
- _instances = {}
-
- def __call__(cls, *args, **kwargs):
- if cls not in cls._instances:
- cls._instances[cls] = super(Singleton, cls).__call__(*args,
- **kwargs)
- return cls._instances[cls]
-
-
-class BaseCoordinator(with_metaclass(Singleton, object)):
- relid = None # Peer relation-id, set by __init__
- relname = None
-
- grants = None # self.grants[unit][lock] == timestamp
- requests = None # self.requests[unit][lock] == timestamp
-
- def __init__(self, relation_key='coordinator', peer_relation_name=None):
- '''Instatiate a Coordinator.
-
- Data is stored on the peers relation and in leadership storage
- under the provided relation_key.
-
- The peers relation is identified by peer_relation_name, and defaults
- to the first one found in metadata.yaml.
- '''
- # Most initialization is deferred, since invoking hook tools from
- # the constructor makes testing hard.
- self.key = relation_key
- self.relname = peer_relation_name
- hookenv.atstart(self.initialize)
-
- # Ensure that handle() is called, without placing that burden on
- # the charm author. They still need to do this manually if they
- # are not using a hook framework.
- hookenv.atstart(self.handle)
-
- def initialize(self):
- if self.requests is not None:
- return # Already initialized.
-
- assert hookenv.has_juju_version('1.23'), 'Needs Juju 1.23+'
-
- if self.relname is None:
- self.relname = _implicit_peer_relation_name()
-
- relids = hookenv.relation_ids(self.relname)
- if relids:
- self.relid = sorted(relids)[0]
-
- # Load our state, from leadership, the peer relationship, and maybe
- # local state as a fallback. Populates self.requests and self.grants.
- self._load_state()
- self._emit_state()
-
- # Save our state if the hook completes successfully.
- hookenv.atexit(self._save_state)
-
- # Schedule release of granted locks for the end of the hook.
- # This needs to be the last of our atexit callbacks to ensure
- # it will be run first when the hook is complete, because there
- # is no point mutating our state after it has been saved.
- hookenv.atexit(self._release_granted)
-
- def acquire(self, lock):
- '''Acquire the named lock, non-blocking.
-
- The lock may be granted immediately, or in a future hook.
-
- Returns True if the lock has been granted. The lock will be
- automatically released at the end of the hook in which it is
- granted.
-
- Do not mindlessly call this method, as it triggers a cascade of
- hooks. For example, if you call acquire() every time in your
- peers relation-changed hook you will end up with an infinite loop
- of hooks. It should almost always be guarded by some condition.
- '''
- unit = hookenv.local_unit()
- ts = self.requests[unit].get(lock)
- if not ts:
- # If there is no outstanding request on the peers relation,
- # create one.
- self.requests.setdefault(lock, {})
- self.requests[unit][lock] = _timestamp()
- self.msg('Requested {}'.format(lock))
-
- # If the leader has granted the lock, yay.
- if self.granted(lock):
- self.msg('Acquired {}'.format(lock))
- return True
-
- # If the unit making the request also happens to be the
- # leader, it must handle the request now. Even though the
- # request has been stored on the peers relation, the peers
- # relation-changed hook will not be triggered.
- if hookenv.is_leader():
- return self.grant(lock, unit)
-
- return False # Can't acquire lock, yet. Maybe next hook.
-
- def granted(self, lock):
- '''Return True if a previously requested lock has been granted'''
- unit = hookenv.local_unit()
- ts = self.requests[unit].get(lock)
- if ts and self.grants.get(unit, {}).get(lock) == ts:
- return True
- return False
-
- def requested(self, lock):
- '''Return True if we are in the queue for the lock'''
- return lock in self.requests[hookenv.local_unit()]
-
- def request_timestamp(self, lock):
- '''Return the timestamp of our outstanding request for lock, or None.
-
- Returns a datetime.datetime() UTC timestamp, with no tzinfo attribute.
- '''
- ts = self.requests[hookenv.local_unit()].get(lock, None)
- if ts is not None:
- return datetime.strptime(ts, _timestamp_format)
-
- def handle(self):
- if not hookenv.is_leader():
- return # Only the leader can grant requests.
-
- self.msg('Leader handling coordinator requests')
-
- # Clear our grants that have been released.
- for unit in self.grants.keys():
- for lock, grant_ts in list(self.grants[unit].items()):
- req_ts = self.requests.get(unit, {}).get(lock)
- if req_ts != grant_ts:
- # The request timestamp does not match the granted
- # timestamp. Several hooks on 'unit' may have run
- # before the leader got a chance to make a decision,
- # and 'unit' may have released its lock and attempted
- # to reacquire it. This will change the timestamp,
- # and we correctly revoke the old grant putting it
- # to the end of the queue.
- ts = datetime.strptime(self.grants[unit][lock],
- _timestamp_format)
- del self.grants[unit][lock]
- self.released(unit, lock, ts)
-
- # Grant locks
- for unit in self.requests.keys():
- for lock in self.requests[unit]:
- self.grant(lock, unit)
-
- def grant(self, lock, unit):
- '''Maybe grant the lock to a unit.
-
- The decision to grant the lock or not is made for $lock
- by a corresponding method grant_$lock, which you may define
- in a subclass. If no such method is defined, the default_grant
- method is used. See Serial.default_grant() for details.
- '''
- if not hookenv.is_leader():
- return False # Not the leader, so we cannot grant.
-
- # Set of units already granted the lock.
- granted = set()
- for u in self.grants:
- if lock in self.grants[u]:
- granted.add(u)
- if unit in granted:
- return True # Already granted.
-
- # Ordered list of units waiting for the lock.
- reqs = set()
- for u in self.requests:
- if u in granted:
- continue # In the granted set. Not wanted in the req list.
- for l, ts in self.requests[u].items():
- if l == lock:
- reqs.add((ts, u))
- queue = [t[1] for t in sorted(reqs)]
- if unit not in queue:
- return False # Unit has not requested the lock.
-
- # Locate custom logic, or fallback to the default.
- grant_func = getattr(self, 'grant_{}'.format(lock), self.default_grant)
-
- if grant_func(lock, unit, granted, queue):
- # Grant the lock.
- self.msg('Leader grants {} to {}'.format(lock, unit))
- self.grants.setdefault(unit, {})[lock] = self.requests[unit][lock]
- return True
-
- return False
-
- def released(self, unit, lock, timestamp):
- '''Called on the leader when it has released a lock.
-
- By default, does nothing but log messages. Override if you
- need to perform additional housekeeping when a lock is released,
- for example recording timestamps.
- '''
- interval = _utcnow() - timestamp
- self.msg('Leader released {} from {}, held {}'.format(lock, unit,
- interval))
-
- def require(self, lock, guard_func, *guard_args, **guard_kw):
- """Decorate a function to be run only when a lock is acquired.
-
- The lock is requested if the guard function returns True.
-
- The decorated function is called if the lock has been granted.
- """
- def decorator(f):
- @wraps(f)
- def wrapper(*args, **kw):
- if self.granted(lock):
- self.msg('Granted {}'.format(lock))
- return f(*args, **kw)
- if guard_func(*guard_args, **guard_kw) and self.acquire(lock):
- return f(*args, **kw)
- return None
- return wrapper
- return decorator
-
- def msg(self, msg):
- '''Emit a message. Override to customize log spam.'''
- hookenv.log('coordinator.{} {}'.format(self._name(), msg),
- level=hookenv.INFO)
-
- def _name(self):
- return self.__class__.__name__
-
- def _load_state(self):
- self.msg('Loading state'.format(self._name()))
-
- # All responses must be stored in the leadership settings.
- # The leader cannot use local state, as a different unit may
- # be leader next time. Which is fine, as the leadership
- # settings are always available.
- self.grants = json.loads(hookenv.leader_get(self.key) or '{}')
-
- local_unit = hookenv.local_unit()
-
- # All requests must be stored on the peers relation. This is
- # the only channel units have to communicate with the leader.
- # Even the leader needs to store its requests here, as a
- # different unit may be leader by the time the request can be
- # granted.
- if self.relid is None:
- # The peers relation is not available. Maybe we are early in
- # the units's lifecycle. Maybe this unit is standalone.
- # Fallback to using local state.
- self.msg('No peer relation. Loading local state')
- self.requests = {local_unit: self._load_local_state()}
- else:
- self.requests = self._load_peer_state()
- if local_unit not in self.requests:
- # The peers relation has just been joined. Update any state
- # loaded from our peers with our local state.
- self.msg('New peer relation. Merging local state')
- self.requests[local_unit] = self._load_local_state()
-
- def _emit_state(self):
- # Emit this units lock status.
- for lock in sorted(self.requests[hookenv.local_unit()].keys()):
- if self.granted(lock):
- self.msg('Granted {}'.format(lock))
- else:
- self.msg('Waiting on {}'.format(lock))
-
- def _save_state(self):
- self.msg('Publishing state'.format(self._name()))
- if hookenv.is_leader():
- # sort_keys to ensure stability.
- raw = json.dumps(self.grants, sort_keys=True)
- hookenv.leader_set({self.key: raw})
-
- local_unit = hookenv.local_unit()
-
- if self.relid is None:
- # No peers relation yet. Fallback to local state.
- self.msg('No peer relation. Saving local state')
- self._save_local_state(self.requests[local_unit])
- else:
- # sort_keys to ensure stability.
- raw = json.dumps(self.requests[local_unit], sort_keys=True)
- hookenv.relation_set(self.relid, relation_settings={self.key: raw})
-
- def _load_peer_state(self):
- requests = {}
- units = set(hookenv.related_units(self.relid))
- units.add(hookenv.local_unit())
- for unit in units:
- raw = hookenv.relation_get(self.key, unit, self.relid)
- if raw:
- requests[unit] = json.loads(raw)
- return requests
-
- def _local_state_filename(self):
- # Include the class name. We allow multiple BaseCoordinator
- # subclasses to be instantiated, and they are singletons, so
- # this avoids conflicts (unless someone creates and uses two
- # BaseCoordinator subclasses with the same class name, so don't
- # do that).
- return '.charmhelpers.coordinator.{}'.format(self._name())
-
- def _load_local_state(self):
- fn = self._local_state_filename()
- if os.path.exists(fn):
- with open(fn, 'r') as f:
- return json.load(f)
- return {}
-
- def _save_local_state(self, state):
- fn = self._local_state_filename()
- with open(fn, 'w') as f:
- json.dump(state, f)
-
- def _release_granted(self):
- # At the end of every hook, release all locks granted to
- # this unit. If a hook neglects to make use of what it
- # requested, it will just have to make the request again.
- # Implicit release is the only way this will work, as
- # if the unit is standalone there may be no future triggers
- # called to do a manual release.
- unit = hookenv.local_unit()
- for lock in list(self.requests[unit].keys()):
- if self.granted(lock):
- self.msg('Released local {} lock'.format(lock))
- del self.requests[unit][lock]
-
-
-class Serial(BaseCoordinator):
- def default_grant(self, lock, unit, granted, queue):
- '''Default logic to grant a lock to a unit. Unless overridden,
- only one unit may hold the lock and it will be granted to the
- earliest queued request.
-
- To define custom logic for $lock, create a subclass and
- define a grant_$lock method.
-
- `unit` is the unit name making the request.
-
- `granted` is the set of units already granted the lock. It will
- never include `unit`. It may be empty.
-
- `queue` is the list of units waiting for the lock, ordered by time
- of request. It will always include `unit`, but `unit` is not
- necessarily first.
-
- Returns True if the lock should be granted to `unit`.
- '''
- return unit == queue[0] and not granted
-
-
-def _implicit_peer_relation_name():
- md = hookenv.metadata()
- assert 'peers' in md, 'No peer relations in metadata.yaml'
- return sorted(md['peers'].keys())[0]
-
-
-# A human readable, sortable UTC timestamp format.
-_timestamp_format = '%Y-%m-%d %H:%M:%S.%fZ'
-
-
-def _utcnow(): # pragma: no cover
- # This wrapper exists as mocking datetime methods is problematic.
- return datetime.utcnow()
-
-
-def _timestamp():
- return _utcnow().strftime(_timestamp_format)
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/__init__.py b/charms/trusty/cassandra/hooks/charmhelpers/core/__init__.py
deleted file mode 100644
index d1400a0..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/__init__.py
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/decorators.py b/charms/trusty/cassandra/hooks/charmhelpers/core/decorators.py
deleted file mode 100644
index bb05620..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/decorators.py
+++ /dev/null
@@ -1,57 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-#
-# Copyright 2014 Canonical Ltd.
-#
-# Authors:
-# Edward Hope-Morley <opentastic@gmail.com>
-#
-
-import time
-
-from charmhelpers.core.hookenv import (
- log,
- INFO,
-)
-
-
-def retry_on_exception(num_retries, base_delay=0, exc_type=Exception):
- """If the decorated function raises exception exc_type, allow num_retries
- retry attempts before raise the exception.
- """
- def _retry_on_exception_inner_1(f):
- def _retry_on_exception_inner_2(*args, **kwargs):
- retries = num_retries
- multiplier = 1
- while True:
- try:
- return f(*args, **kwargs)
- except exc_type:
- if not retries:
- raise
-
- delay = base_delay * multiplier
- multiplier += 1
- log("Retrying '%s' %d more times (delay=%s)" %
- (f.__name__, retries, delay), level=INFO)
- retries -= 1
- if delay:
- time.sleep(delay)
-
- return _retry_on_exception_inner_2
-
- return _retry_on_exception_inner_1
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/files.py b/charms/trusty/cassandra/hooks/charmhelpers/core/files.py
deleted file mode 100644
index 0f12d32..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/files.py
+++ /dev/null
@@ -1,45 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-__author__ = 'Jorge Niedbalski <niedbalski@ubuntu.com>'
-
-import os
-import subprocess
-
-
-def sed(filename, before, after, flags='g'):
- """
- Search and replaces the given pattern on filename.
-
- :param filename: relative or absolute file path.
- :param before: expression to be replaced (see 'man sed')
- :param after: expression to replace with (see 'man sed')
- :param flags: sed-compatible regex flags in example, to make
- the search and replace case insensitive, specify ``flags="i"``.
- The ``g`` flag is always specified regardless, so you do not
- need to remember to include it when overriding this parameter.
- :returns: If the sed command exit code was zero then return,
- otherwise raise CalledProcessError.
- """
- expression = r's/{0}/{1}/{2}'.format(before,
- after, flags)
-
- return subprocess.check_call(["sed", "-i", "-r", "-e",
- expression,
- os.path.expanduser(filename)])
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/fstab.py b/charms/trusty/cassandra/hooks/charmhelpers/core/fstab.py
deleted file mode 100644
index 3056fba..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/fstab.py
+++ /dev/null
@@ -1,134 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import io
-import os
-
-__author__ = 'Jorge Niedbalski R. <jorge.niedbalski@canonical.com>'
-
-
-class Fstab(io.FileIO):
- """This class extends file in order to implement a file reader/writer
- for file `/etc/fstab`
- """
-
- class Entry(object):
- """Entry class represents a non-comment line on the `/etc/fstab` file
- """
- def __init__(self, device, mountpoint, filesystem,
- options, d=0, p=0):
- self.device = device
- self.mountpoint = mountpoint
- self.filesystem = filesystem
-
- if not options:
- options = "defaults"
-
- self.options = options
- self.d = int(d)
- self.p = int(p)
-
- def __eq__(self, o):
- return str(self) == str(o)
-
- def __str__(self):
- return "{} {} {} {} {} {}".format(self.device,
- self.mountpoint,
- self.filesystem,
- self.options,
- self.d,
- self.p)
-
- DEFAULT_PATH = os.path.join(os.path.sep, 'etc', 'fstab')
-
- def __init__(self, path=None):
- if path:
- self._path = path
- else:
- self._path = self.DEFAULT_PATH
- super(Fstab, self).__init__(self._path, 'rb+')
-
- def _hydrate_entry(self, line):
- # NOTE: use split with no arguments to split on any
- # whitespace including tabs
- return Fstab.Entry(*filter(
- lambda x: x not in ('', None),
- line.strip("\n").split()))
-
- @property
- def entries(self):
- self.seek(0)
- for line in self.readlines():
- line = line.decode('us-ascii')
- try:
- if line.strip() and not line.strip().startswith("#"):
- yield self._hydrate_entry(line)
- except ValueError:
- pass
-
- def get_entry_by_attr(self, attr, value):
- for entry in self.entries:
- e_attr = getattr(entry, attr)
- if e_attr == value:
- return entry
- return None
-
- def add_entry(self, entry):
- if self.get_entry_by_attr('device', entry.device):
- return False
-
- self.write((str(entry) + '\n').encode('us-ascii'))
- self.truncate()
- return entry
-
- def remove_entry(self, entry):
- self.seek(0)
-
- lines = [l.decode('us-ascii') for l in self.readlines()]
-
- found = False
- for index, line in enumerate(lines):
- if line.strip() and not line.strip().startswith("#"):
- if self._hydrate_entry(line) == entry:
- found = True
- break
-
- if not found:
- return False
-
- lines.remove(line)
-
- self.seek(0)
- self.write(''.join(lines).encode('us-ascii'))
- self.truncate()
- return True
-
- @classmethod
- def remove_by_mountpoint(cls, mountpoint, path=None):
- fstab = cls(path=path)
- entry = fstab.get_entry_by_attr('mountpoint', mountpoint)
- if entry:
- return fstab.remove_entry(entry)
- return False
-
- @classmethod
- def add(cls, device, mountpoint, filesystem, options=None, path=None):
- return cls(path=path).add_entry(Fstab.Entry(device,
- mountpoint, filesystem,
- options=options))
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/hookenv.py b/charms/trusty/cassandra/hooks/charmhelpers/core/hookenv.py
deleted file mode 100644
index 3912e6e..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/hookenv.py
+++ /dev/null
@@ -1,1026 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-"Interactions with the Juju environment"
-# Copyright 2013 Canonical Ltd.
-#
-# Authors:
-# Charm Helpers Developers <juju@lists.ubuntu.com>
-
-from __future__ import print_function
-import copy
-from distutils.version import LooseVersion
-from functools import wraps
-import glob
-import os
-import json
-import yaml
-import socket
-import subprocess
-import sys
-import errno
-import tempfile
-from subprocess import CalledProcessError
-
-import six
-if not six.PY3:
- from UserDict import UserDict
-else:
- from collections import UserDict
-
-CRITICAL = "CRITICAL"
-ERROR = "ERROR"
-WARNING = "WARNING"
-INFO = "INFO"
-DEBUG = "DEBUG"
-MARKER = object()
-
-cache = {}
-
-
-def cached(func):
- """Cache return values for multiple executions of func + args
-
- For example::
-
- @cached
- def unit_get(attribute):
- pass
-
- unit_get('test')
-
- will cache the result of unit_get + 'test' for future calls.
- """
- @wraps(func)
- def wrapper(*args, **kwargs):
- global cache
- key = str((func, args, kwargs))
- try:
- return cache[key]
- except KeyError:
- pass # Drop out of the exception handler scope.
- res = func(*args, **kwargs)
- cache[key] = res
- return res
- wrapper._wrapped = func
- return wrapper
-
-
-def flush(key):
- """Flushes any entries from function cache where the
- key is found in the function+args """
- flush_list = []
- for item in cache:
- if key in item:
- flush_list.append(item)
- for item in flush_list:
- del cache[item]
-
-
-def log(message, level=None):
- """Write a message to the juju log"""
- command = ['juju-log']
- if level:
- command += ['-l', level]
- if not isinstance(message, six.string_types):
- message = repr(message)
- command += [message]
- # Missing juju-log should not cause failures in unit tests
- # Send log output to stderr
- try:
- subprocess.call(command)
- except OSError as e:
- if e.errno == errno.ENOENT:
- if level:
- message = "{}: {}".format(level, message)
- message = "juju-log: {}".format(message)
- print(message, file=sys.stderr)
- else:
- raise
-
-
-class Serializable(UserDict):
- """Wrapper, an object that can be serialized to yaml or json"""
-
- def __init__(self, obj):
- # wrap the object
- UserDict.__init__(self)
- self.data = obj
-
- def __getattr__(self, attr):
- # See if this object has attribute.
- if attr in ("json", "yaml", "data"):
- return self.__dict__[attr]
- # Check for attribute in wrapped object.
- got = getattr(self.data, attr, MARKER)
- if got is not MARKER:
- return got
- # Proxy to the wrapped object via dict interface.
- try:
- return self.data[attr]
- except KeyError:
- raise AttributeError(attr)
-
- def __getstate__(self):
- # Pickle as a standard dictionary.
- return self.data
-
- def __setstate__(self, state):
- # Unpickle into our wrapper.
- self.data = state
-
- def json(self):
- """Serialize the object to json"""
- return json.dumps(self.data)
-
- def yaml(self):
- """Serialize the object to yaml"""
- return yaml.dump(self.data)
-
-
-def execution_environment():
- """A convenient bundling of the current execution context"""
- context = {}
- context['conf'] = config()
- if relation_id():
- context['reltype'] = relation_type()
- context['relid'] = relation_id()
- context['rel'] = relation_get()
- context['unit'] = local_unit()
- context['rels'] = relations()
- context['env'] = os.environ
- return context
-
-
-def in_relation_hook():
- """Determine whether we're running in a relation hook"""
- return 'JUJU_RELATION' in os.environ
-
-
-def relation_type():
- """The scope for the current relation hook"""
- return os.environ.get('JUJU_RELATION', None)
-
-
-@cached
-def relation_id(relation_name=None, service_or_unit=None):
- """The relation ID for the current or a specified relation"""
- if not relation_name and not service_or_unit:
- return os.environ.get('JUJU_RELATION_ID', None)
- elif relation_name and service_or_unit:
- service_name = service_or_unit.split('/')[0]
- for relid in relation_ids(relation_name):
- remote_service = remote_service_name(relid)
- if remote_service == service_name:
- return relid
- else:
- raise ValueError('Must specify neither or both of relation_name and service_or_unit')
-
-
-def local_unit():
- """Local unit ID"""
- return os.environ['JUJU_UNIT_NAME']
-
-
-def remote_unit():
- """The remote unit for the current relation hook"""
- return os.environ.get('JUJU_REMOTE_UNIT', None)
-
-
-def service_name():
- """The name service group this unit belongs to"""
- return local_unit().split('/')[0]
-
-
-@cached
-def remote_service_name(relid=None):
- """The remote service name for a given relation-id (or the current relation)"""
- if relid is None:
- unit = remote_unit()
- else:
- units = related_units(relid)
- unit = units[0] if units else None
- return unit.split('/')[0] if unit else None
-
-
-def hook_name():
- """The name of the currently executing hook"""
- return os.environ.get('JUJU_HOOK_NAME', os.path.basename(sys.argv[0]))
-
-
-class Config(dict):
- """A dictionary representation of the charm's config.yaml, with some
- extra features:
-
- - See which values in the dictionary have changed since the previous hook.
- - For values that have changed, see what the previous value was.
- - Store arbitrary data for use in a later hook.
-
- NOTE: Do not instantiate this object directly - instead call
- ``hookenv.config()``, which will return an instance of :class:`Config`.
-
- Example usage::
-
- >>> # inside a hook
- >>> from charmhelpers.core import hookenv
- >>> config = hookenv.config()
- >>> config['foo']
- 'bar'
- >>> # store a new key/value for later use
- >>> config['mykey'] = 'myval'
-
-
- >>> # user runs `juju set mycharm foo=baz`
- >>> # now we're inside subsequent config-changed hook
- >>> config = hookenv.config()
- >>> config['foo']
- 'baz'
- >>> # test to see if this val has changed since last hook
- >>> config.changed('foo')
- True
- >>> # what was the previous value?
- >>> config.previous('foo')
- 'bar'
- >>> # keys/values that we add are preserved across hooks
- >>> config['mykey']
- 'myval'
-
- """
- CONFIG_FILE_NAME = '.juju-persistent-config'
-
- def __init__(self, *args, **kw):
- super(Config, self).__init__(*args, **kw)
- self.implicit_save = True
- self._prev_dict = None
- self.path = os.path.join(charm_dir(), Config.CONFIG_FILE_NAME)
- if os.path.exists(self.path):
- self.load_previous()
- atexit(self._implicit_save)
-
- def load_previous(self, path=None):
- """Load previous copy of config from disk.
-
- In normal usage you don't need to call this method directly - it
- is called automatically at object initialization.
-
- :param path:
-
- File path from which to load the previous config. If `None`,
- config is loaded from the default location. If `path` is
- specified, subsequent `save()` calls will write to the same
- path.
-
- """
- self.path = path or self.path
- with open(self.path) as f:
- self._prev_dict = json.load(f)
- for k, v in copy.deepcopy(self._prev_dict).items():
- if k not in self:
- self[k] = v
-
- def changed(self, key):
- """Return True if the current value for this key is different from
- the previous value.
-
- """
- if self._prev_dict is None:
- return True
- return self.previous(key) != self.get(key)
-
- def previous(self, key):
- """Return previous value for this key, or None if there
- is no previous value.
-
- """
- if self._prev_dict:
- return self._prev_dict.get(key)
- return None
-
- def save(self):
- """Save this config to disk.
-
- If the charm is using the :mod:`Services Framework <services.base>`
- or :meth:'@hook <Hooks.hook>' decorator, this
- is called automatically at the end of successful hook execution.
- Otherwise, it should be called directly by user code.
-
- To disable automatic saves, set ``implicit_save=False`` on this
- instance.
-
- """
- with open(self.path, 'w') as f:
- json.dump(self, f)
-
- def _implicit_save(self):
- if self.implicit_save:
- self.save()
-
-
-@cached
-def config(scope=None):
- """Juju charm configuration"""
- config_cmd_line = ['config-get']
- if scope is not None:
- config_cmd_line.append(scope)
- config_cmd_line.append('--format=json')
- try:
- config_data = json.loads(
- subprocess.check_output(config_cmd_line).decode('UTF-8'))
- if scope is not None:
- return config_data
- return Config(config_data)
- except ValueError:
- return None
-
-
-@cached
-def relation_get(attribute=None, unit=None, rid=None):
- """Get relation information"""
- _args = ['relation-get', '--format=json']
- if rid:
- _args.append('-r')
- _args.append(rid)
- _args.append(attribute or '-')
- if unit:
- _args.append(unit)
- try:
- return json.loads(subprocess.check_output(_args).decode('UTF-8'))
- except ValueError:
- return None
- except CalledProcessError as e:
- if e.returncode == 2:
- return None
- raise
-
-
-def relation_set(relation_id=None, relation_settings=None, **kwargs):
- """Set relation information for the current unit"""
- relation_settings = relation_settings if relation_settings else {}
- relation_cmd_line = ['relation-set']
- accepts_file = "--file" in subprocess.check_output(
- relation_cmd_line + ["--help"], universal_newlines=True)
- if relation_id is not None:
- relation_cmd_line.extend(('-r', relation_id))
- settings = relation_settings.copy()
- settings.update(kwargs)
- for key, value in settings.items():
- # Force value to be a string: it always should, but some call
- # sites pass in things like dicts or numbers.
- if value is not None:
- settings[key] = "{}".format(value)
- if accepts_file:
- # --file was introduced in Juju 1.23.2. Use it by default if
- # available, since otherwise we'll break if the relation data is
- # too big. Ideally we should tell relation-set to read the data from
- # stdin, but that feature is broken in 1.23.2: Bug #1454678.
- with tempfile.NamedTemporaryFile(delete=False) as settings_file:
- settings_file.write(yaml.safe_dump(settings).encode("utf-8"))
- subprocess.check_call(
- relation_cmd_line + ["--file", settings_file.name])
- os.remove(settings_file.name)
- else:
- for key, value in settings.items():
- if value is None:
- relation_cmd_line.append('{}='.format(key))
- else:
- relation_cmd_line.append('{}={}'.format(key, value))
- subprocess.check_call(relation_cmd_line)
- # Flush cache of any relation-gets for local unit
- flush(local_unit())
-
-
-def relation_clear(r_id=None):
- ''' Clears any relation data already set on relation r_id '''
- settings = relation_get(rid=r_id,
- unit=local_unit())
- for setting in settings:
- if setting not in ['public-address', 'private-address']:
- settings[setting] = None
- relation_set(relation_id=r_id,
- **settings)
-
-
-@cached
-def relation_ids(reltype=None):
- """A list of relation_ids"""
- reltype = reltype or relation_type()
- relid_cmd_line = ['relation-ids', '--format=json']
- if reltype is not None:
- relid_cmd_line.append(reltype)
- return json.loads(
- subprocess.check_output(relid_cmd_line).decode('UTF-8')) or []
- return []
-
-
-@cached
-def related_units(relid=None):
- """A list of related units"""
- relid = relid or relation_id()
- units_cmd_line = ['relation-list', '--format=json']
- if relid is not None:
- units_cmd_line.extend(('-r', relid))
- return json.loads(
- subprocess.check_output(units_cmd_line).decode('UTF-8')) or []
-
-
-@cached
-def relation_for_unit(unit=None, rid=None):
- """Get the json represenation of a unit's relation"""
- unit = unit or remote_unit()
- relation = relation_get(unit=unit, rid=rid)
- for key in relation:
- if key.endswith('-list'):
- relation[key] = relation[key].split()
- relation['__unit__'] = unit
- return relation
-
-
-@cached
-def relations_for_id(relid=None):
- """Get relations of a specific relation ID"""
- relation_data = []
- relid = relid or relation_ids()
- for unit in related_units(relid):
- unit_data = relation_for_unit(unit, relid)
- unit_data['__relid__'] = relid
- relation_data.append(unit_data)
- return relation_data
-
-
-@cached
-def relations_of_type(reltype=None):
- """Get relations of a specific type"""
- relation_data = []
- reltype = reltype or relation_type()
- for relid in relation_ids(reltype):
- for relation in relations_for_id(relid):
- relation['__relid__'] = relid
- relation_data.append(relation)
- return relation_data
-
-
-@cached
-def metadata():
- """Get the current charm metadata.yaml contents as a python object"""
- with open(os.path.join(charm_dir(), 'metadata.yaml')) as md:
- return yaml.safe_load(md)
-
-
-@cached
-def relation_types():
- """Get a list of relation types supported by this charm"""
- rel_types = []
- md = metadata()
- for key in ('provides', 'requires', 'peers'):
- section = md.get(key)
- if section:
- rel_types.extend(section.keys())
- return rel_types
-
-
-@cached
-def peer_relation_id():
- '''Get the peers relation id if a peers relation has been joined, else None.'''
- md = metadata()
- section = md.get('peers')
- if section:
- for key in section:
- relids = relation_ids(key)
- if relids:
- return relids[0]
- return None
-
-
-@cached
-def relation_to_interface(relation_name):
- """
- Given the name of a relation, return the interface that relation uses.
-
- :returns: The interface name, or ``None``.
- """
- return relation_to_role_and_interface(relation_name)[1]
-
-
-@cached
-def relation_to_role_and_interface(relation_name):
- """
- Given the name of a relation, return the role and the name of the interface
- that relation uses (where role is one of ``provides``, ``requires``, or ``peers``).
-
- :returns: A tuple containing ``(role, interface)``, or ``(None, None)``.
- """
- _metadata = metadata()
- for role in ('provides', 'requires', 'peers'):
- interface = _metadata.get(role, {}).get(relation_name, {}).get('interface')
- if interface:
- return role, interface
- return None, None
-
-
-@cached
-def role_and_interface_to_relations(role, interface_name):
- """
- Given a role and interface name, return a list of relation names for the
- current charm that use that interface under that role (where role is one
- of ``provides``, ``requires``, or ``peers``).
-
- :returns: A list of relation names.
- """
- _metadata = metadata()
- results = []
- for relation_name, relation in _metadata.get(role, {}).items():
- if relation['interface'] == interface_name:
- results.append(relation_name)
- return results
-
-
-@cached
-def interface_to_relations(interface_name):
- """
- Given an interface, return a list of relation names for the current
- charm that use that interface.
-
- :returns: A list of relation names.
- """
- results = []
- for role in ('provides', 'requires', 'peers'):
- results.extend(role_and_interface_to_relations(role, interface_name))
- return results
-
-
-@cached
-def charm_name():
- """Get the name of the current charm as is specified on metadata.yaml"""
- return metadata().get('name')
-
-
-@cached
-def relations():
- """Get a nested dictionary of relation data for all related units"""
- rels = {}
- for reltype in relation_types():
- relids = {}
- for relid in relation_ids(reltype):
- units = {local_unit(): relation_get(unit=local_unit(), rid=relid)}
- for unit in related_units(relid):
- reldata = relation_get(unit=unit, rid=relid)
- units[unit] = reldata
- relids[relid] = units
- rels[reltype] = relids
- return rels
-
-
-@cached
-def is_relation_made(relation, keys='private-address'):
- '''
- Determine whether a relation is established by checking for
- presence of key(s). If a list of keys is provided, they
- must all be present for the relation to be identified as made
- '''
- if isinstance(keys, str):
- keys = [keys]
- for r_id in relation_ids(relation):
- for unit in related_units(r_id):
- context = {}
- for k in keys:
- context[k] = relation_get(k, rid=r_id,
- unit=unit)
- if None not in context.values():
- return True
- return False
-
-
-def open_port(port, protocol="TCP"):
- """Open a service network port"""
- _args = ['open-port']
- _args.append('{}/{}'.format(port, protocol))
- subprocess.check_call(_args)
-
-
-def close_port(port, protocol="TCP"):
- """Close a service network port"""
- _args = ['close-port']
- _args.append('{}/{}'.format(port, protocol))
- subprocess.check_call(_args)
-
-
-@cached
-def unit_get(attribute):
- """Get the unit ID for the remote unit"""
- _args = ['unit-get', '--format=json', attribute]
- try:
- return json.loads(subprocess.check_output(_args).decode('UTF-8'))
- except ValueError:
- return None
-
-
-def unit_public_ip():
- """Get this unit's public IP address"""
- return _ensure_ip(unit_get('public-address'))
-
-
-def unit_private_ip():
- """Get this unit's private IP address"""
- return _ensure_ip(unit_get('private-address'))
-
-
-def _ensure_ip(addr):
- """If addr is a hostname, resolve it to an IP address"""
- if not addr:
- return None
- # We need to use socket.getaddrinfo for IPv6 support.
- info = socket.getaddrinfo(addr, None)
- if info is None:
- # Should never happen
- raise ValueError("Invalid result None from getaddinfo")
- try:
- return info[0][4][0]
- except IndexError:
- # Should never happen
- raise ValueError("Invalid result {!r} from getaddinfo".format(info))
-
-
-@cached
-def storage_get(attribute=None, storage_id=None):
- """Get storage attributes"""
- _args = ['storage-get', '--format=json']
- if storage_id:
- _args.extend(('-s', storage_id))
- if attribute:
- _args.append(attribute)
- try:
- return json.loads(subprocess.check_output(_args).decode('UTF-8'))
- except ValueError:
- return None
-
-
-@cached
-def storage_list(storage_name=None):
- """List the storage IDs for the unit"""
- _args = ['storage-list', '--format=json']
- if storage_name:
- _args.append(storage_name)
- try:
- return json.loads(subprocess.check_output(_args).decode('UTF-8'))
- except ValueError:
- return None
- except OSError as e:
- import errno
- if e.errno == errno.ENOENT:
- # storage-list does not exist
- return []
- raise
-
-
-class UnregisteredHookError(Exception):
- """Raised when an undefined hook is called"""
- pass
-
-
-class Hooks(object):
- """A convenient handler for hook functions.
-
- Example::
-
- hooks = Hooks()
-
- # register a hook, taking its name from the function name
- @hooks.hook()
- def install():
- pass # your code here
-
- # register a hook, providing a custom hook name
- @hooks.hook("config-changed")
- def config_changed():
- pass # your code here
-
- if __name__ == "__main__":
- # execute a hook based on the name the program is called by
- hooks.execute(sys.argv)
- """
-
- def __init__(self, config_save=None):
- super(Hooks, self).__init__()
- self._hooks = {}
-
- # For unknown reasons, we allow the Hooks constructor to override
- # config().implicit_save.
- if config_save is not None:
- config().implicit_save = config_save
-
- def register(self, name, function):
- """Register a hook"""
- self._hooks[name] = function
-
- def execute(self, args):
- """Execute a registered hook based on args[0]"""
- _run_atstart()
- hook_name = os.path.basename(args[0])
- if hook_name in self._hooks:
- try:
- self._hooks[hook_name]()
- except SystemExit as x:
- if x.code is None or x.code == 0:
- _run_atexit()
- raise
- _run_atexit()
- else:
- raise UnregisteredHookError(hook_name)
-
- def hook(self, *hook_names):
- """Decorator, registering them as hooks"""
- def wrapper(decorated):
- for hook_name in hook_names:
- self.register(hook_name, decorated)
- else:
- self.register(decorated.__name__, decorated)
- if '_' in decorated.__name__:
- self.register(
- decorated.__name__.replace('_', '-'), decorated)
- return decorated
- return wrapper
-
-
-def charm_dir():
- """Return the root directory of the current charm"""
- return os.environ.get('CHARM_DIR')
-
-
-@cached
-def action_get(key=None):
- """Gets the value of an action parameter, or all key/value param pairs"""
- cmd = ['action-get']
- if key is not None:
- cmd.append(key)
- cmd.append('--format=json')
- action_data = json.loads(subprocess.check_output(cmd).decode('UTF-8'))
- return action_data
-
-
-def action_set(values):
- """Sets the values to be returned after the action finishes"""
- cmd = ['action-set']
- for k, v in list(values.items()):
- cmd.append('{}={}'.format(k, v))
- subprocess.check_call(cmd)
-
-
-def action_fail(message):
- """Sets the action status to failed and sets the error message.
-
- The results set by action_set are preserved."""
- subprocess.check_call(['action-fail', message])
-
-
-def action_name():
- """Get the name of the currently executing action."""
- return os.environ.get('JUJU_ACTION_NAME')
-
-
-def action_uuid():
- """Get the UUID of the currently executing action."""
- return os.environ.get('JUJU_ACTION_UUID')
-
-
-def action_tag():
- """Get the tag for the currently executing action."""
- return os.environ.get('JUJU_ACTION_TAG')
-
-
-def status_set(workload_state, message):
- """Set the workload state with a message
-
- Use status-set to set the workload state with a message which is visible
- to the user via juju status. If the status-set command is not found then
- assume this is juju < 1.23 and juju-log the message unstead.
-
- workload_state -- valid juju workload state.
- message -- status update message
- """
- valid_states = ['maintenance', 'blocked', 'waiting', 'active']
- if workload_state not in valid_states:
- raise ValueError(
- '{!r} is not a valid workload state'.format(workload_state)
- )
- cmd = ['status-set', workload_state, message]
- try:
- ret = subprocess.call(cmd)
- if ret == 0:
- return
- except OSError as e:
- if e.errno != errno.ENOENT:
- raise
- log_message = 'status-set failed: {} {}'.format(workload_state,
- message)
- log(log_message, level='INFO')
-
-
-def status_get():
- """Retrieve the previously set juju workload state and message
-
- If the status-get command is not found then assume this is juju < 1.23 and
- return 'unknown', ""
-
- """
- cmd = ['status-get', "--format=json", "--include-data"]
- try:
- raw_status = subprocess.check_output(cmd)
- except OSError as e:
- if e.errno == errno.ENOENT:
- return ('unknown', "")
- else:
- raise
- else:
- status = json.loads(raw_status.decode("UTF-8"))
- return (status["status"], status["message"])
-
-
-def translate_exc(from_exc, to_exc):
- def inner_translate_exc1(f):
- @wraps(f)
- def inner_translate_exc2(*args, **kwargs):
- try:
- return f(*args, **kwargs)
- except from_exc:
- raise to_exc
-
- return inner_translate_exc2
-
- return inner_translate_exc1
-
-
-@translate_exc(from_exc=OSError, to_exc=NotImplementedError)
-def is_leader():
- """Does the current unit hold the juju leadership
-
- Uses juju to determine whether the current unit is the leader of its peers
- """
- cmd = ['is-leader', '--format=json']
- return json.loads(subprocess.check_output(cmd).decode('UTF-8'))
-
-
-@translate_exc(from_exc=OSError, to_exc=NotImplementedError)
-def leader_get(attribute=None):
- """Juju leader get value(s)"""
- cmd = ['leader-get', '--format=json'] + [attribute or '-']
- return json.loads(subprocess.check_output(cmd).decode('UTF-8'))
-
-
-@translate_exc(from_exc=OSError, to_exc=NotImplementedError)
-def leader_set(settings=None, **kwargs):
- """Juju leader set value(s)"""
- # Don't log secrets.
- # log("Juju leader-set '%s'" % (settings), level=DEBUG)
- cmd = ['leader-set']
- settings = settings or {}
- settings.update(kwargs)
- for k, v in settings.items():
- if v is None:
- cmd.append('{}='.format(k))
- else:
- cmd.append('{}={}'.format(k, v))
- subprocess.check_call(cmd)
-
-
-@translate_exc(from_exc=OSError, to_exc=NotImplementedError)
-def payload_register(ptype, klass, pid):
- """ is used while a hook is running to let Juju know that a
- payload has been started."""
- cmd = ['payload-register']
- for x in [ptype, klass, pid]:
- cmd.append(x)
- subprocess.check_call(cmd)
-
-
-@translate_exc(from_exc=OSError, to_exc=NotImplementedError)
-def payload_unregister(klass, pid):
- """ is used while a hook is running to let Juju know
- that a payload has been manually stopped. The <class> and <id> provided
- must match a payload that has been previously registered with juju using
- payload-register."""
- cmd = ['payload-unregister']
- for x in [klass, pid]:
- cmd.append(x)
- subprocess.check_call(cmd)
-
-
-@translate_exc(from_exc=OSError, to_exc=NotImplementedError)
-def payload_status_set(klass, pid, status):
- """is used to update the current status of a registered payload.
- The <class> and <id> provided must match a payload that has been previously
- registered with juju using payload-register. The <status> must be one of the
- follow: starting, started, stopping, stopped"""
- cmd = ['payload-status-set']
- for x in [klass, pid, status]:
- cmd.append(x)
- subprocess.check_call(cmd)
-
-
-@translate_exc(from_exc=OSError, to_exc=NotImplementedError)
-def resource_get(name):
- """used to fetch the resource path of the given name.
-
- <name> must match a name of defined resource in metadata.yaml
-
- returns either a path or False if resource not available
- """
- if not name:
- return False
-
- cmd = ['resource-get', name]
- try:
- return subprocess.check_output(cmd).decode('UTF-8')
- except subprocess.CalledProcessError:
- return False
-
-
-@cached
-def juju_version():
- """Full version string (eg. '1.23.3.1-trusty-amd64')"""
- # Per https://bugs.launchpad.net/juju-core/+bug/1455368/comments/1
- jujud = glob.glob('/var/lib/juju/tools/machine-*/jujud')[0]
- return subprocess.check_output([jujud, 'version'],
- universal_newlines=True).strip()
-
-
-@cached
-def has_juju_version(minimum_version):
- """Return True if the Juju version is at least the provided version"""
- return LooseVersion(juju_version()) >= LooseVersion(minimum_version)
-
-
-_atexit = []
-_atstart = []
-
-
-def atstart(callback, *args, **kwargs):
- '''Schedule a callback to run before the main hook.
-
- Callbacks are run in the order they were added.
-
- This is useful for modules and classes to perform initialization
- and inject behavior. In particular:
-
- - Run common code before all of your hooks, such as logging
- the hook name or interesting relation data.
- - Defer object or module initialization that requires a hook
- context until we know there actually is a hook context,
- making testing easier.
- - Rather than requiring charm authors to include boilerplate to
- invoke your helper's behavior, have it run automatically if
- your object is instantiated or module imported.
-
- This is not at all useful after your hook framework as been launched.
- '''
- global _atstart
- _atstart.append((callback, args, kwargs))
-
-
-def atexit(callback, *args, **kwargs):
- '''Schedule a callback to run on successful hook completion.
-
- Callbacks are run in the reverse order that they were added.'''
- _atexit.append((callback, args, kwargs))
-
-
-def _run_atstart():
- '''Hook frameworks must invoke this before running the main hook body.'''
- global _atstart
- for callback, args, kwargs in _atstart:
- callback(*args, **kwargs)
- del _atstart[:]
-
-
-def _run_atexit():
- '''Hook frameworks must invoke this after the main hook body has
- successfully completed. Do not invoke it if the hook fails.'''
- global _atexit
- for callback, args, kwargs in reversed(_atexit):
- callback(*args, **kwargs)
- del _atexit[:]
-
-
-@translate_exc(from_exc=OSError, to_exc=NotImplementedError)
-def network_get_primary_address(binding):
- '''
- Retrieve the primary network address for a named binding
-
- :param binding: string. The name of a relation of extra-binding
- :return: string. The primary IP address for the named binding
- :raise: NotImplementedError if run on Juju < 2.0
- '''
- cmd = ['network-get', '--primary-address', binding]
- return subprocess.check_output(cmd).strip()
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/host.py b/charms/trusty/cassandra/hooks/charmhelpers/core/host.py
deleted file mode 100644
index 481087b..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/host.py
+++ /dev/null
@@ -1,695 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-"""Tools for working with the host system"""
-# Copyright 2012 Canonical Ltd.
-#
-# Authors:
-# Nick Moffitt <nick.moffitt@canonical.com>
-# Matthew Wedgwood <matthew.wedgwood@canonical.com>
-
-import os
-import re
-import pwd
-import glob
-import grp
-import random
-import string
-import subprocess
-import hashlib
-import functools
-import itertools
-from contextlib import contextmanager
-from collections import OrderedDict
-
-import six
-
-from .hookenv import log
-from .fstab import Fstab
-
-
-def service_start(service_name):
- """Start a system service"""
- return service('start', service_name)
-
-
-def service_stop(service_name):
- """Stop a system service"""
- return service('stop', service_name)
-
-
-def service_restart(service_name):
- """Restart a system service"""
- return service('restart', service_name)
-
-
-def service_reload(service_name, restart_on_failure=False):
- """Reload a system service, optionally falling back to restart if
- reload fails"""
- service_result = service('reload', service_name)
- if not service_result and restart_on_failure:
- service_result = service('restart', service_name)
- return service_result
-
-
-def service_pause(service_name, init_dir="/etc/init", initd_dir="/etc/init.d"):
- """Pause a system service.
-
- Stop it, and prevent it from starting again at boot."""
- stopped = True
- if service_running(service_name):
- stopped = service_stop(service_name)
- upstart_file = os.path.join(init_dir, "{}.conf".format(service_name))
- sysv_file = os.path.join(initd_dir, service_name)
- if init_is_systemd():
- service('disable', service_name)
- elif os.path.exists(upstart_file):
- override_path = os.path.join(
- init_dir, '{}.override'.format(service_name))
- with open(override_path, 'w') as fh:
- fh.write("manual\n")
- elif os.path.exists(sysv_file):
- subprocess.check_call(["update-rc.d", service_name, "disable"])
- else:
- raise ValueError(
- "Unable to detect {0} as SystemD, Upstart {1} or"
- " SysV {2}".format(
- service_name, upstart_file, sysv_file))
- return stopped
-
-
-def service_resume(service_name, init_dir="/etc/init",
- initd_dir="/etc/init.d"):
- """Resume a system service.
-
- Reenable starting again at boot. Start the service"""
- upstart_file = os.path.join(init_dir, "{}.conf".format(service_name))
- sysv_file = os.path.join(initd_dir, service_name)
- if init_is_systemd():
- service('enable', service_name)
- elif os.path.exists(upstart_file):
- override_path = os.path.join(
- init_dir, '{}.override'.format(service_name))
- if os.path.exists(override_path):
- os.unlink(override_path)
- elif os.path.exists(sysv_file):
- subprocess.check_call(["update-rc.d", service_name, "enable"])
- else:
- raise ValueError(
- "Unable to detect {0} as SystemD, Upstart {1} or"
- " SysV {2}".format(
- service_name, upstart_file, sysv_file))
-
- started = service_running(service_name)
- if not started:
- started = service_start(service_name)
- return started
-
-
-def service(action, service_name):
- """Control a system service"""
- if init_is_systemd():
- cmd = ['systemctl', action, service_name]
- else:
- cmd = ['service', service_name, action]
- return subprocess.call(cmd) == 0
-
-
-def service_running(service_name):
- """Determine whether a system service is running"""
- if init_is_systemd():
- return service('is-active', service_name)
- else:
- try:
- output = subprocess.check_output(
- ['service', service_name, 'status'],
- stderr=subprocess.STDOUT).decode('UTF-8')
- except subprocess.CalledProcessError:
- return False
- else:
- if ("start/running" in output or "is running" in output or
- "up and running" in output):
- return True
- else:
- return False
-
-
-def service_available(service_name):
- """Determine whether a system service is available"""
- try:
- subprocess.check_output(
- ['service', service_name, 'status'],
- stderr=subprocess.STDOUT).decode('UTF-8')
- except subprocess.CalledProcessError as e:
- return b'unrecognized service' not in e.output
- else:
- return True
-
-
-SYSTEMD_SYSTEM = '/run/systemd/system'
-
-
-def init_is_systemd():
- """Return True if the host system uses systemd, False otherwise."""
- return os.path.isdir(SYSTEMD_SYSTEM)
-
-
-def adduser(username, password=None, shell='/bin/bash', system_user=False,
- primary_group=None, secondary_groups=None):
- """Add a user to the system.
-
- Will log but otherwise succeed if the user already exists.
-
- :param str username: Username to create
- :param str password: Password for user; if ``None``, create a system user
- :param str shell: The default shell for the user
- :param bool system_user: Whether to create a login or system user
- :param str primary_group: Primary group for user; defaults to username
- :param list secondary_groups: Optional list of additional groups
-
- :returns: The password database entry struct, as returned by `pwd.getpwnam`
- """
- try:
- user_info = pwd.getpwnam(username)
- log('user {0} already exists!'.format(username))
- except KeyError:
- log('creating user {0}'.format(username))
- cmd = ['useradd']
- if system_user or password is None:
- cmd.append('--system')
- else:
- cmd.extend([
- '--create-home',
- '--shell', shell,
- '--password', password,
- ])
- if not primary_group:
- try:
- grp.getgrnam(username)
- primary_group = username # avoid "group exists" error
- except KeyError:
- pass
- if primary_group:
- cmd.extend(['-g', primary_group])
- if secondary_groups:
- cmd.extend(['-G', ','.join(secondary_groups)])
- cmd.append(username)
- subprocess.check_call(cmd)
- user_info = pwd.getpwnam(username)
- return user_info
-
-
-def user_exists(username):
- """Check if a user exists"""
- try:
- pwd.getpwnam(username)
- user_exists = True
- except KeyError:
- user_exists = False
- return user_exists
-
-
-def add_group(group_name, system_group=False):
- """Add a group to the system"""
- try:
- group_info = grp.getgrnam(group_name)
- log('group {0} already exists!'.format(group_name))
- except KeyError:
- log('creating group {0}'.format(group_name))
- cmd = ['addgroup']
- if system_group:
- cmd.append('--system')
- else:
- cmd.extend([
- '--group',
- ])
- cmd.append(group_name)
- subprocess.check_call(cmd)
- group_info = grp.getgrnam(group_name)
- return group_info
-
-
-def add_user_to_group(username, group):
- """Add a user to a group"""
- cmd = ['gpasswd', '-a', username, group]
- log("Adding user {} to group {}".format(username, group))
- subprocess.check_call(cmd)
-
-
-def rsync(from_path, to_path, flags='-r', options=None):
- """Replicate the contents of a path"""
- options = options or ['--delete', '--executability']
- cmd = ['/usr/bin/rsync', flags]
- cmd.extend(options)
- cmd.append(from_path)
- cmd.append(to_path)
- log(" ".join(cmd))
- return subprocess.check_output(cmd).decode('UTF-8').strip()
-
-
-def symlink(source, destination):
- """Create a symbolic link"""
- log("Symlinking {} as {}".format(source, destination))
- cmd = [
- 'ln',
- '-sf',
- source,
- destination,
- ]
- subprocess.check_call(cmd)
-
-
-def mkdir(path, owner='root', group='root', perms=0o555, force=False):
- """Create a directory"""
- log("Making dir {} {}:{} {:o}".format(path, owner, group,
- perms))
- uid = pwd.getpwnam(owner).pw_uid
- gid = grp.getgrnam(group).gr_gid
- realpath = os.path.abspath(path)
- path_exists = os.path.exists(realpath)
- if path_exists and force:
- if not os.path.isdir(realpath):
- log("Removing non-directory file {} prior to mkdir()".format(path))
- os.unlink(realpath)
- os.makedirs(realpath, perms)
- elif not path_exists:
- os.makedirs(realpath, perms)
- os.chown(realpath, uid, gid)
- os.chmod(realpath, perms)
-
-
-def write_file(path, content, owner='root', group='root', perms=0o444):
- """Create or overwrite a file with the contents of a byte string."""
- log("Writing file {} {}:{} {:o}".format(path, owner, group, perms))
- uid = pwd.getpwnam(owner).pw_uid
- gid = grp.getgrnam(group).gr_gid
- with open(path, 'wb') as target:
- os.fchown(target.fileno(), uid, gid)
- os.fchmod(target.fileno(), perms)
- target.write(content)
-
-
-def fstab_remove(mp):
- """Remove the given mountpoint entry from /etc/fstab"""
- return Fstab.remove_by_mountpoint(mp)
-
-
-def fstab_add(dev, mp, fs, options=None):
- """Adds the given device entry to the /etc/fstab file"""
- return Fstab.add(dev, mp, fs, options=options)
-
-
-def mount(device, mountpoint, options=None, persist=False, filesystem="ext3"):
- """Mount a filesystem at a particular mountpoint"""
- cmd_args = ['mount']
- if options is not None:
- cmd_args.extend(['-o', options])
- cmd_args.extend([device, mountpoint])
- try:
- subprocess.check_output(cmd_args)
- except subprocess.CalledProcessError as e:
- log('Error mounting {} at {}\n{}'.format(device, mountpoint, e.output))
- return False
-
- if persist:
- return fstab_add(device, mountpoint, filesystem, options=options)
- return True
-
-
-def umount(mountpoint, persist=False):
- """Unmount a filesystem"""
- cmd_args = ['umount', mountpoint]
- try:
- subprocess.check_output(cmd_args)
- except subprocess.CalledProcessError as e:
- log('Error unmounting {}\n{}'.format(mountpoint, e.output))
- return False
-
- if persist:
- return fstab_remove(mountpoint)
- return True
-
-
-def mounts():
- """Get a list of all mounted volumes as [[mountpoint,device],[...]]"""
- with open('/proc/mounts') as f:
- # [['/mount/point','/dev/path'],[...]]
- system_mounts = [m[1::-1] for m in [l.strip().split()
- for l in f.readlines()]]
- return system_mounts
-
-
-def fstab_mount(mountpoint):
- """Mount filesystem using fstab"""
- cmd_args = ['mount', mountpoint]
- try:
- subprocess.check_output(cmd_args)
- except subprocess.CalledProcessError as e:
- log('Error unmounting {}\n{}'.format(mountpoint, e.output))
- return False
- return True
-
-
-def file_hash(path, hash_type='md5'):
- """Generate a hash checksum of the contents of 'path' or None if not found.
-
- :param str hash_type: Any hash alrgorithm supported by :mod:`hashlib`,
- such as md5, sha1, sha256, sha512, etc.
- """
- if os.path.exists(path):
- h = getattr(hashlib, hash_type)()
- with open(path, 'rb') as source:
- h.update(source.read())
- return h.hexdigest()
- else:
- return None
-
-
-def path_hash(path):
- """Generate a hash checksum of all files matching 'path'. Standard
- wildcards like '*' and '?' are supported, see documentation for the 'glob'
- module for more information.
-
- :return: dict: A { filename: hash } dictionary for all matched files.
- Empty if none found.
- """
- return {
- filename: file_hash(filename)
- for filename in glob.iglob(path)
- }
-
-
-def check_hash(path, checksum, hash_type='md5'):
- """Validate a file using a cryptographic checksum.
-
- :param str checksum: Value of the checksum used to validate the file.
- :param str hash_type: Hash algorithm used to generate `checksum`.
- Can be any hash alrgorithm supported by :mod:`hashlib`,
- such as md5, sha1, sha256, sha512, etc.
- :raises ChecksumError: If the file fails the checksum
-
- """
- actual_checksum = file_hash(path, hash_type)
- if checksum != actual_checksum:
- raise ChecksumError("'%s' != '%s'" % (checksum, actual_checksum))
-
-
-class ChecksumError(ValueError):
- """A class derived from Value error to indicate the checksum failed."""
- pass
-
-
-def restart_on_change(restart_map, stopstart=False):
- """Restart services based on configuration files changing
-
- This function is used a decorator, for example::
-
- @restart_on_change({
- '/etc/ceph/ceph.conf': [ 'cinder-api', 'cinder-volume' ]
- '/etc/apache/sites-enabled/*': [ 'apache2' ]
- })
- def config_changed():
- pass # your code here
-
- In this example, the cinder-api and cinder-volume services
- would be restarted if /etc/ceph/ceph.conf is changed by the
- ceph_client_changed function. The apache2 service would be
- restarted if any file matching the pattern got changed, created
- or removed. Standard wildcards are supported, see documentation
- for the 'glob' module for more information.
-
- @param restart_map: {path_file_name: [service_name, ...]
- @param stopstart: DEFAULT false; whether to stop, start OR restart
- @returns result from decorated function
- """
- def wrap(f):
- @functools.wraps(f)
- def wrapped_f(*args, **kwargs):
- return restart_on_change_helper(
- (lambda: f(*args, **kwargs)), restart_map, stopstart)
- return wrapped_f
- return wrap
-
-
-def restart_on_change_helper(lambda_f, restart_map, stopstart=False):
- """Helper function to perform the restart_on_change function.
-
- This is provided for decorators to restart services if files described
- in the restart_map have changed after an invocation of lambda_f().
-
- @param lambda_f: function to call.
- @param restart_map: {file: [service, ...]}
- @param stopstart: whether to stop, start or restart a service
- @returns result of lambda_f()
- """
- checksums = {path: path_hash(path) for path in restart_map}
- r = lambda_f()
- # create a list of lists of the services to restart
- restarts = [restart_map[path]
- for path in restart_map
- if path_hash(path) != checksums[path]]
- # create a flat list of ordered services without duplicates from lists
- services_list = list(OrderedDict.fromkeys(itertools.chain(*restarts)))
- if services_list:
- actions = ('stop', 'start') if stopstart else ('restart',)
- for action in actions:
- for service_name in services_list:
- service(action, service_name)
- return r
-
-
-def lsb_release():
- """Return /etc/lsb-release in a dict"""
- d = {}
- with open('/etc/lsb-release', 'r') as lsb:
- for l in lsb:
- k, v = l.split('=')
- d[k.strip()] = v.strip()
- return d
-
-
-def pwgen(length=None):
- """Generate a random pasword."""
- if length is None:
- # A random length is ok to use a weak PRNG
- length = random.choice(range(35, 45))
- alphanumeric_chars = [
- l for l in (string.ascii_letters + string.digits)
- if l not in 'l0QD1vAEIOUaeiou']
- # Use a crypto-friendly PRNG (e.g. /dev/urandom) for making the
- # actual password
- random_generator = random.SystemRandom()
- random_chars = [
- random_generator.choice(alphanumeric_chars) for _ in range(length)]
- return(''.join(random_chars))
-
-
-def is_phy_iface(interface):
- """Returns True if interface is not virtual, otherwise False."""
- if interface:
- sys_net = '/sys/class/net'
- if os.path.isdir(sys_net):
- for iface in glob.glob(os.path.join(sys_net, '*')):
- if '/virtual/' in os.path.realpath(iface):
- continue
-
- if interface == os.path.basename(iface):
- return True
-
- return False
-
-
-def get_bond_master(interface):
- """Returns bond master if interface is bond slave otherwise None.
-
- NOTE: the provided interface is expected to be physical
- """
- if interface:
- iface_path = '/sys/class/net/%s' % (interface)
- if os.path.exists(iface_path):
- if '/virtual/' in os.path.realpath(iface_path):
- return None
-
- master = os.path.join(iface_path, 'master')
- if os.path.exists(master):
- master = os.path.realpath(master)
- # make sure it is a bond master
- if os.path.exists(os.path.join(master, 'bonding')):
- return os.path.basename(master)
-
- return None
-
-
-def list_nics(nic_type=None):
- """Return a list of nics of given type(s)"""
- if isinstance(nic_type, six.string_types):
- int_types = [nic_type]
- else:
- int_types = nic_type
-
- interfaces = []
- if nic_type:
- for int_type in int_types:
- cmd = ['ip', 'addr', 'show', 'label', int_type + '*']
- ip_output = subprocess.check_output(cmd).decode('UTF-8')
- ip_output = ip_output.split('\n')
- ip_output = (line for line in ip_output if line)
- for line in ip_output:
- if line.split()[1].startswith(int_type):
- matched = re.search('.*: (' + int_type +
- r'[0-9]+\.[0-9]+)@.*', line)
- if matched:
- iface = matched.groups()[0]
- else:
- iface = line.split()[1].replace(":", "")
-
- if iface not in interfaces:
- interfaces.append(iface)
- else:
- cmd = ['ip', 'a']
- ip_output = subprocess.check_output(cmd).decode('UTF-8').split('\n')
- ip_output = (line.strip() for line in ip_output if line)
-
- key = re.compile('^[0-9]+:\s+(.+):')
- for line in ip_output:
- matched = re.search(key, line)
- if matched:
- iface = matched.group(1)
- iface = iface.partition("@")[0]
- if iface not in interfaces:
- interfaces.append(iface)
-
- return interfaces
-
-
-def set_nic_mtu(nic, mtu):
- """Set the Maximum Transmission Unit (MTU) on a network interface."""
- cmd = ['ip', 'link', 'set', nic, 'mtu', mtu]
- subprocess.check_call(cmd)
-
-
-def get_nic_mtu(nic):
- """Return the Maximum Transmission Unit (MTU) for a network interface."""
- cmd = ['ip', 'addr', 'show', nic]
- ip_output = subprocess.check_output(cmd).decode('UTF-8').split('\n')
- mtu = ""
- for line in ip_output:
- words = line.split()
- if 'mtu' in words:
- mtu = words[words.index("mtu") + 1]
- return mtu
-
-
-def get_nic_hwaddr(nic):
- """Return the Media Access Control (MAC) for a network interface."""
- cmd = ['ip', '-o', '-0', 'addr', 'show', nic]
- ip_output = subprocess.check_output(cmd).decode('UTF-8')
- hwaddr = ""
- words = ip_output.split()
- if 'link/ether' in words:
- hwaddr = words[words.index('link/ether') + 1]
- return hwaddr
-
-
-def cmp_pkgrevno(package, revno, pkgcache=None):
- """Compare supplied revno with the revno of the installed package
-
- * 1 => Installed revno is greater than supplied arg
- * 0 => Installed revno is the same as supplied arg
- * -1 => Installed revno is less than supplied arg
-
- This function imports apt_cache function from charmhelpers.fetch if
- the pkgcache argument is None. Be sure to add charmhelpers.fetch if
- you call this function, or pass an apt_pkg.Cache() instance.
- """
- import apt_pkg
- if not pkgcache:
- from charmhelpers.fetch import apt_cache
- pkgcache = apt_cache()
- pkg = pkgcache[package]
- return apt_pkg.version_compare(pkg.current_ver.ver_str, revno)
-
-
-@contextmanager
-def chdir(directory):
- """Change the current working directory to a different directory for a code
- block and return the previous directory after the block exits. Useful to
- run commands from a specificed directory.
-
- :param str directory: The directory path to change to for this context.
- """
- cur = os.getcwd()
- try:
- yield os.chdir(directory)
- finally:
- os.chdir(cur)
-
-
-def chownr(path, owner, group, follow_links=True, chowntopdir=False):
- """Recursively change user and group ownership of files and directories
- in given path. Doesn't chown path itself by default, only its children.
-
- :param str path: The string path to start changing ownership.
- :param str owner: The owner string to use when looking up the uid.
- :param str group: The group string to use when looking up the gid.
- :param bool follow_links: Also Chown links if True
- :param bool chowntopdir: Also chown path itself if True
- """
- uid = pwd.getpwnam(owner).pw_uid
- gid = grp.getgrnam(group).gr_gid
- if follow_links:
- chown = os.chown
- else:
- chown = os.lchown
-
- if chowntopdir:
- broken_symlink = os.path.lexists(path) and not os.path.exists(path)
- if not broken_symlink:
- chown(path, uid, gid)
- for root, dirs, files in os.walk(path):
- for name in dirs + files:
- full = os.path.join(root, name)
- broken_symlink = os.path.lexists(full) and not os.path.exists(full)
- if not broken_symlink:
- chown(full, uid, gid)
-
-
-def lchownr(path, owner, group):
- """Recursively change user and group ownership of files and directories
- in a given path, not following symbolic links. See the documentation for
- 'os.lchown' for more information.
-
- :param str path: The string path to start changing ownership.
- :param str owner: The owner string to use when looking up the uid.
- :param str group: The group string to use when looking up the gid.
- """
- chownr(path, owner, group, follow_links=False)
-
-
-def get_total_ram():
- """The total amount of system RAM in bytes.
-
- This is what is reported by the OS, and may be overcommitted when
- there are multiple containers hosted on the same machine.
- """
- with open('/proc/meminfo', 'r') as f:
- for line in f.readlines():
- if line:
- key, value, unit = line.split()
- if key == 'MemTotal:':
- assert unit == 'kB', 'Unknown unit'
- return int(value) * 1024 # Classic, not KiB.
- raise NotImplementedError()
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/hugepage.py b/charms/trusty/cassandra/hooks/charmhelpers/core/hugepage.py
deleted file mode 100644
index a783ad9..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/hugepage.py
+++ /dev/null
@@ -1,71 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import yaml
-from charmhelpers.core import fstab
-from charmhelpers.core import sysctl
-from charmhelpers.core.host import (
- add_group,
- add_user_to_group,
- fstab_mount,
- mkdir,
-)
-from charmhelpers.core.strutils import bytes_from_string
-from subprocess import check_output
-
-
-def hugepage_support(user, group='hugetlb', nr_hugepages=256,
- max_map_count=65536, mnt_point='/run/hugepages/kvm',
- pagesize='2MB', mount=True, set_shmmax=False):
- """Enable hugepages on system.
-
- Args:
- user (str) -- Username to allow access to hugepages to
- group (str) -- Group name to own hugepages
- nr_hugepages (int) -- Number of pages to reserve
- max_map_count (int) -- Number of Virtual Memory Areas a process can own
- mnt_point (str) -- Directory to mount hugepages on
- pagesize (str) -- Size of hugepages
- mount (bool) -- Whether to Mount hugepages
- """
- group_info = add_group(group)
- gid = group_info.gr_gid
- add_user_to_group(user, group)
- if max_map_count < 2 * nr_hugepages:
- max_map_count = 2 * nr_hugepages
- sysctl_settings = {
- 'vm.nr_hugepages': nr_hugepages,
- 'vm.max_map_count': max_map_count,
- 'vm.hugetlb_shm_group': gid,
- }
- if set_shmmax:
- shmmax_current = int(check_output(['sysctl', '-n', 'kernel.shmmax']))
- shmmax_minsize = bytes_from_string(pagesize) * nr_hugepages
- if shmmax_minsize > shmmax_current:
- sysctl_settings['kernel.shmmax'] = shmmax_minsize
- sysctl.create(yaml.dump(sysctl_settings), '/etc/sysctl.d/10-hugepage.conf')
- mkdir(mnt_point, owner='root', group='root', perms=0o755, force=False)
- lfstab = fstab.Fstab()
- fstab_entry = lfstab.get_entry_by_attr('mountpoint', mnt_point)
- if fstab_entry:
- lfstab.remove_entry(fstab_entry)
- entry = lfstab.Entry('nodev', mnt_point, 'hugetlbfs',
- 'mode=1770,gid={},pagesize={}'.format(gid, pagesize), 0, 0)
- lfstab.add_entry(entry)
- if mount:
- fstab_mount(mnt_point)
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/kernel.py b/charms/trusty/cassandra/hooks/charmhelpers/core/kernel.py
deleted file mode 100644
index 5dc6495..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/kernel.py
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-__author__ = "Jorge Niedbalski <jorge.niedbalski@canonical.com>"
-
-from charmhelpers.core.hookenv import (
- log,
- INFO
-)
-
-from subprocess import check_call, check_output
-import re
-
-
-def modprobe(module, persist=True):
- """Load a kernel module and configure for auto-load on reboot."""
- cmd = ['modprobe', module]
-
- log('Loading kernel module %s' % module, level=INFO)
-
- check_call(cmd)
- if persist:
- with open('/etc/modules', 'r+') as modules:
- if module not in modules.read():
- modules.write(module)
-
-
-def rmmod(module, force=False):
- """Remove a module from the linux kernel"""
- cmd = ['rmmod']
- if force:
- cmd.append('-f')
- cmd.append(module)
- log('Removing kernel module %s' % module, level=INFO)
- return check_call(cmd)
-
-
-def lsmod():
- """Shows what kernel modules are currently loaded"""
- return check_output(['lsmod'],
- universal_newlines=True)
-
-
-def is_module_loaded(module):
- """Checks if a kernel module is already loaded"""
- matches = re.findall('^%s[ ]+' % module, lsmod(), re.M)
- return len(matches) > 0
-
-
-def update_initramfs(version='all'):
- """Updates an initramfs image"""
- return check_call(["update-initramfs", "-k", version, "-u"])
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/services/__init__.py b/charms/trusty/cassandra/hooks/charmhelpers/core/services/__init__.py
deleted file mode 100644
index 0928158..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/services/__init__.py
+++ /dev/null
@@ -1,18 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-from .base import * # NOQA
-from .helpers import * # NOQA
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/services/base.py b/charms/trusty/cassandra/hooks/charmhelpers/core/services/base.py
deleted file mode 100644
index a42660c..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/services/base.py
+++ /dev/null
@@ -1,353 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import os
-import json
-from inspect import getargspec
-from collections import Iterable, OrderedDict
-
-from charmhelpers.core import host
-from charmhelpers.core import hookenv
-
-
-__all__ = ['ServiceManager', 'ManagerCallback',
- 'PortManagerCallback', 'open_ports', 'close_ports', 'manage_ports',
- 'service_restart', 'service_stop']
-
-
-class ServiceManager(object):
- def __init__(self, services=None):
- """
- Register a list of services, given their definitions.
-
- Service definitions are dicts in the following formats (all keys except
- 'service' are optional)::
-
- {
- "service": <service name>,
- "required_data": <list of required data contexts>,
- "provided_data": <list of provided data contexts>,
- "data_ready": <one or more callbacks>,
- "data_lost": <one or more callbacks>,
- "start": <one or more callbacks>,
- "stop": <one or more callbacks>,
- "ports": <list of ports to manage>,
- }
-
- The 'required_data' list should contain dicts of required data (or
- dependency managers that act like dicts and know how to collect the data).
- Only when all items in the 'required_data' list are populated are the list
- of 'data_ready' and 'start' callbacks executed. See `is_ready()` for more
- information.
-
- The 'provided_data' list should contain relation data providers, most likely
- a subclass of :class:`charmhelpers.core.services.helpers.RelationContext`,
- that will indicate a set of data to set on a given relation.
-
- The 'data_ready' value should be either a single callback, or a list of
- callbacks, to be called when all items in 'required_data' pass `is_ready()`.
- Each callback will be called with the service name as the only parameter.
- After all of the 'data_ready' callbacks are called, the 'start' callbacks
- are fired.
-
- The 'data_lost' value should be either a single callback, or a list of
- callbacks, to be called when a 'required_data' item no longer passes
- `is_ready()`. Each callback will be called with the service name as the
- only parameter. After all of the 'data_lost' callbacks are called,
- the 'stop' callbacks are fired.
-
- The 'start' value should be either a single callback, or a list of
- callbacks, to be called when starting the service, after the 'data_ready'
- callbacks are complete. Each callback will be called with the service
- name as the only parameter. This defaults to
- `[host.service_start, services.open_ports]`.
-
- The 'stop' value should be either a single callback, or a list of
- callbacks, to be called when stopping the service. If the service is
- being stopped because it no longer has all of its 'required_data', this
- will be called after all of the 'data_lost' callbacks are complete.
- Each callback will be called with the service name as the only parameter.
- This defaults to `[services.close_ports, host.service_stop]`.
-
- The 'ports' value should be a list of ports to manage. The default
- 'start' handler will open the ports after the service is started,
- and the default 'stop' handler will close the ports prior to stopping
- the service.
-
-
- Examples:
-
- The following registers an Upstart service called bingod that depends on
- a mongodb relation and which runs a custom `db_migrate` function prior to
- restarting the service, and a Runit service called spadesd::
-
- manager = services.ServiceManager([
- {
- 'service': 'bingod',
- 'ports': [80, 443],
- 'required_data': [MongoRelation(), config(), {'my': 'data'}],
- 'data_ready': [
- services.template(source='bingod.conf'),
- services.template(source='bingod.ini',
- target='/etc/bingod.ini',
- owner='bingo', perms=0400),
- ],
- },
- {
- 'service': 'spadesd',
- 'data_ready': services.template(source='spadesd_run.j2',
- target='/etc/sv/spadesd/run',
- perms=0555),
- 'start': runit_start,
- 'stop': runit_stop,
- },
- ])
- manager.manage()
- """
- self._ready_file = os.path.join(hookenv.charm_dir(), 'READY-SERVICES.json')
- self._ready = None
- self.services = OrderedDict()
- for service in services or []:
- service_name = service['service']
- self.services[service_name] = service
-
- def manage(self):
- """
- Handle the current hook by doing The Right Thing with the registered services.
- """
- hookenv._run_atstart()
- try:
- hook_name = hookenv.hook_name()
- if hook_name == 'stop':
- self.stop_services()
- else:
- self.reconfigure_services()
- self.provide_data()
- except SystemExit as x:
- if x.code is None or x.code == 0:
- hookenv._run_atexit()
- hookenv._run_atexit()
-
- def provide_data(self):
- """
- Set the relation data for each provider in the ``provided_data`` list.
-
- A provider must have a `name` attribute, which indicates which relation
- to set data on, and a `provide_data()` method, which returns a dict of
- data to set.
-
- The `provide_data()` method can optionally accept two parameters:
-
- * ``remote_service`` The name of the remote service that the data will
- be provided to. The `provide_data()` method will be called once
- for each connected service (not unit). This allows the method to
- tailor its data to the given service.
- * ``service_ready`` Whether or not the service definition had all of
- its requirements met, and thus the ``data_ready`` callbacks run.
-
- Note that the ``provided_data`` methods are now called **after** the
- ``data_ready`` callbacks are run. This gives the ``data_ready`` callbacks
- a chance to generate any data necessary for the providing to the remote
- services.
- """
- for service_name, service in self.services.items():
- service_ready = self.is_ready(service_name)
- for provider in service.get('provided_data', []):
- for relid in hookenv.relation_ids(provider.name):
- units = hookenv.related_units(relid)
- if not units:
- continue
- remote_service = units[0].split('/')[0]
- argspec = getargspec(provider.provide_data)
- if len(argspec.args) > 1:
- data = provider.provide_data(remote_service, service_ready)
- else:
- data = provider.provide_data()
- if data:
- hookenv.relation_set(relid, data)
-
- def reconfigure_services(self, *service_names):
- """
- Update all files for one or more registered services, and,
- if ready, optionally restart them.
-
- If no service names are given, reconfigures all registered services.
- """
- for service_name in service_names or self.services.keys():
- if self.is_ready(service_name):
- self.fire_event('data_ready', service_name)
- self.fire_event('start', service_name, default=[
- service_restart,
- manage_ports])
- self.save_ready(service_name)
- else:
- if self.was_ready(service_name):
- self.fire_event('data_lost', service_name)
- self.fire_event('stop', service_name, default=[
- manage_ports,
- service_stop])
- self.save_lost(service_name)
-
- def stop_services(self, *service_names):
- """
- Stop one or more registered services, by name.
-
- If no service names are given, stops all registered services.
- """
- for service_name in service_names or self.services.keys():
- self.fire_event('stop', service_name, default=[
- manage_ports,
- service_stop])
-
- def get_service(self, service_name):
- """
- Given the name of a registered service, return its service definition.
- """
- service = self.services.get(service_name)
- if not service:
- raise KeyError('Service not registered: %s' % service_name)
- return service
-
- def fire_event(self, event_name, service_name, default=None):
- """
- Fire a data_ready, data_lost, start, or stop event on a given service.
- """
- service = self.get_service(service_name)
- callbacks = service.get(event_name, default)
- if not callbacks:
- return
- if not isinstance(callbacks, Iterable):
- callbacks = [callbacks]
- for callback in callbacks:
- if isinstance(callback, ManagerCallback):
- callback(self, service_name, event_name)
- else:
- callback(service_name)
-
- def is_ready(self, service_name):
- """
- Determine if a registered service is ready, by checking its 'required_data'.
-
- A 'required_data' item can be any mapping type, and is considered ready
- if `bool(item)` evaluates as True.
- """
- service = self.get_service(service_name)
- reqs = service.get('required_data', [])
- return all(bool(req) for req in reqs)
-
- def _load_ready_file(self):
- if self._ready is not None:
- return
- if os.path.exists(self._ready_file):
- with open(self._ready_file) as fp:
- self._ready = set(json.load(fp))
- else:
- self._ready = set()
-
- def _save_ready_file(self):
- if self._ready is None:
- return
- with open(self._ready_file, 'w') as fp:
- json.dump(list(self._ready), fp)
-
- def save_ready(self, service_name):
- """
- Save an indicator that the given service is now data_ready.
- """
- self._load_ready_file()
- self._ready.add(service_name)
- self._save_ready_file()
-
- def save_lost(self, service_name):
- """
- Save an indicator that the given service is no longer data_ready.
- """
- self._load_ready_file()
- self._ready.discard(service_name)
- self._save_ready_file()
-
- def was_ready(self, service_name):
- """
- Determine if the given service was previously data_ready.
- """
- self._load_ready_file()
- return service_name in self._ready
-
-
-class ManagerCallback(object):
- """
- Special case of a callback that takes the `ServiceManager` instance
- in addition to the service name.
-
- Subclasses should implement `__call__` which should accept three parameters:
-
- * `manager` The `ServiceManager` instance
- * `service_name` The name of the service it's being triggered for
- * `event_name` The name of the event that this callback is handling
- """
- def __call__(self, manager, service_name, event_name):
- raise NotImplementedError()
-
-
-class PortManagerCallback(ManagerCallback):
- """
- Callback class that will open or close ports, for use as either
- a start or stop action.
- """
- def __call__(self, manager, service_name, event_name):
- service = manager.get_service(service_name)
- new_ports = service.get('ports', [])
- port_file = os.path.join(hookenv.charm_dir(), '.{}.ports'.format(service_name))
- if os.path.exists(port_file):
- with open(port_file) as fp:
- old_ports = fp.read().split(',')
- for old_port in old_ports:
- if bool(old_port):
- old_port = int(old_port)
- if old_port not in new_ports:
- hookenv.close_port(old_port)
- with open(port_file, 'w') as fp:
- fp.write(','.join(str(port) for port in new_ports))
- for port in new_ports:
- if event_name == 'start':
- hookenv.open_port(port)
- elif event_name == 'stop':
- hookenv.close_port(port)
-
-
-def service_stop(service_name):
- """
- Wrapper around host.service_stop to prevent spurious "unknown service"
- messages in the logs.
- """
- if host.service_running(service_name):
- host.service_stop(service_name)
-
-
-def service_restart(service_name):
- """
- Wrapper around host.service_restart to prevent spurious "unknown service"
- messages in the logs.
- """
- if host.service_available(service_name):
- if host.service_running(service_name):
- host.service_restart(service_name)
- else:
- host.service_start(service_name)
-
-
-# Convenience aliases
-open_ports = close_ports = manage_ports = PortManagerCallback()
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/services/helpers.py b/charms/trusty/cassandra/hooks/charmhelpers/core/services/helpers.py
deleted file mode 100644
index 2423704..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/services/helpers.py
+++ /dev/null
@@ -1,292 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import os
-import yaml
-
-from charmhelpers.core import hookenv
-from charmhelpers.core import host
-from charmhelpers.core import templating
-
-from charmhelpers.core.services.base import ManagerCallback
-
-
-__all__ = ['RelationContext', 'TemplateCallback',
- 'render_template', 'template']
-
-
-class RelationContext(dict):
- """
- Base class for a context generator that gets relation data from juju.
-
- Subclasses must provide the attributes `name`, which is the name of the
- interface of interest, `interface`, which is the type of the interface of
- interest, and `required_keys`, which is the set of keys required for the
- relation to be considered complete. The data for all interfaces matching
- the `name` attribute that are complete will used to populate the dictionary
- values (see `get_data`, below).
-
- The generated context will be namespaced under the relation :attr:`name`,
- to prevent potential naming conflicts.
-
- :param str name: Override the relation :attr:`name`, since it can vary from charm to charm
- :param list additional_required_keys: Extend the list of :attr:`required_keys`
- """
- name = None
- interface = None
-
- def __init__(self, name=None, additional_required_keys=None):
- if not hasattr(self, 'required_keys'):
- self.required_keys = []
-
- if name is not None:
- self.name = name
- if additional_required_keys:
- self.required_keys.extend(additional_required_keys)
- self.get_data()
-
- def __bool__(self):
- """
- Returns True if all of the required_keys are available.
- """
- return self.is_ready()
-
- __nonzero__ = __bool__
-
- def __repr__(self):
- return super(RelationContext, self).__repr__()
-
- def is_ready(self):
- """
- Returns True if all of the `required_keys` are available from any units.
- """
- ready = len(self.get(self.name, [])) > 0
- if not ready:
- hookenv.log('Incomplete relation: {}'.format(self.__class__.__name__), hookenv.DEBUG)
- return ready
-
- def _is_ready(self, unit_data):
- """
- Helper method that tests a set of relation data and returns True if
- all of the `required_keys` are present.
- """
- return set(unit_data.keys()).issuperset(set(self.required_keys))
-
- def get_data(self):
- """
- Retrieve the relation data for each unit involved in a relation and,
- if complete, store it in a list under `self[self.name]`. This
- is automatically called when the RelationContext is instantiated.
-
- The units are sorted lexographically first by the service ID, then by
- the unit ID. Thus, if an interface has two other services, 'db:1'
- and 'db:2', with 'db:1' having two units, 'wordpress/0' and 'wordpress/1',
- and 'db:2' having one unit, 'mediawiki/0', all of which have a complete
- set of data, the relation data for the units will be stored in the
- order: 'wordpress/0', 'wordpress/1', 'mediawiki/0'.
-
- If you only care about a single unit on the relation, you can just
- access it as `{{ interface[0]['key'] }}`. However, if you can at all
- support multiple units on a relation, you should iterate over the list,
- like::
-
- {% for unit in interface -%}
- {{ unit['key'] }}{% if not loop.last %},{% endif %}
- {%- endfor %}
-
- Note that since all sets of relation data from all related services and
- units are in a single list, if you need to know which service or unit a
- set of data came from, you'll need to extend this class to preserve
- that information.
- """
- if not hookenv.relation_ids(self.name):
- return
-
- ns = self.setdefault(self.name, [])
- for rid in sorted(hookenv.relation_ids(self.name)):
- for unit in sorted(hookenv.related_units(rid)):
- reldata = hookenv.relation_get(rid=rid, unit=unit)
- if self._is_ready(reldata):
- ns.append(reldata)
-
- def provide_data(self):
- """
- Return data to be relation_set for this interface.
- """
- return {}
-
-
-class MysqlRelation(RelationContext):
- """
- Relation context for the `mysql` interface.
-
- :param str name: Override the relation :attr:`name`, since it can vary from charm to charm
- :param list additional_required_keys: Extend the list of :attr:`required_keys`
- """
- name = 'db'
- interface = 'mysql'
-
- def __init__(self, *args, **kwargs):
- self.required_keys = ['host', 'user', 'password', 'database']
- RelationContext.__init__(self, *args, **kwargs)
-
-
-class HttpRelation(RelationContext):
- """
- Relation context for the `http` interface.
-
- :param str name: Override the relation :attr:`name`, since it can vary from charm to charm
- :param list additional_required_keys: Extend the list of :attr:`required_keys`
- """
- name = 'website'
- interface = 'http'
-
- def __init__(self, *args, **kwargs):
- self.required_keys = ['host', 'port']
- RelationContext.__init__(self, *args, **kwargs)
-
- def provide_data(self):
- return {
- 'host': hookenv.unit_get('private-address'),
- 'port': 80,
- }
-
-
-class RequiredConfig(dict):
- """
- Data context that loads config options with one or more mandatory options.
-
- Once the required options have been changed from their default values, all
- config options will be available, namespaced under `config` to prevent
- potential naming conflicts (for example, between a config option and a
- relation property).
-
- :param list *args: List of options that must be changed from their default values.
- """
-
- def __init__(self, *args):
- self.required_options = args
- self['config'] = hookenv.config()
- with open(os.path.join(hookenv.charm_dir(), 'config.yaml')) as fp:
- self.config = yaml.load(fp).get('options', {})
-
- def __bool__(self):
- for option in self.required_options:
- if option not in self['config']:
- return False
- current_value = self['config'][option]
- default_value = self.config[option].get('default')
- if current_value == default_value:
- return False
- if current_value in (None, '') and default_value in (None, ''):
- return False
- return True
-
- def __nonzero__(self):
- return self.__bool__()
-
-
-class StoredContext(dict):
- """
- A data context that always returns the data that it was first created with.
-
- This is useful to do a one-time generation of things like passwords, that
- will thereafter use the same value that was originally generated, instead
- of generating a new value each time it is run.
- """
- def __init__(self, file_name, config_data):
- """
- If the file exists, populate `self` with the data from the file.
- Otherwise, populate with the given data and persist it to the file.
- """
- if os.path.exists(file_name):
- self.update(self.read_context(file_name))
- else:
- self.store_context(file_name, config_data)
- self.update(config_data)
-
- def store_context(self, file_name, config_data):
- if not os.path.isabs(file_name):
- file_name = os.path.join(hookenv.charm_dir(), file_name)
- with open(file_name, 'w') as file_stream:
- os.fchmod(file_stream.fileno(), 0o600)
- yaml.dump(config_data, file_stream)
-
- def read_context(self, file_name):
- if not os.path.isabs(file_name):
- file_name = os.path.join(hookenv.charm_dir(), file_name)
- with open(file_name, 'r') as file_stream:
- data = yaml.load(file_stream)
- if not data:
- raise OSError("%s is empty" % file_name)
- return data
-
-
-class TemplateCallback(ManagerCallback):
- """
- Callback class that will render a Jinja2 template, for use as a ready
- action.
-
- :param str source: The template source file, relative to
- `$CHARM_DIR/templates`
-
- :param str target: The target to write the rendered template to (or None)
- :param str owner: The owner of the rendered file
- :param str group: The group of the rendered file
- :param int perms: The permissions of the rendered file
- :param partial on_change_action: functools partial to be executed when
- rendered file changes
- :param jinja2 loader template_loader: A jinja2 template loader
-
- :return str: The rendered template
- """
- def __init__(self, source, target,
- owner='root', group='root', perms=0o444,
- on_change_action=None, template_loader=None):
- self.source = source
- self.target = target
- self.owner = owner
- self.group = group
- self.perms = perms
- self.on_change_action = on_change_action
- self.template_loader = template_loader
-
- def __call__(self, manager, service_name, event_name):
- pre_checksum = ''
- if self.on_change_action and os.path.isfile(self.target):
- pre_checksum = host.file_hash(self.target)
- service = manager.get_service(service_name)
- context = {'ctx': {}}
- for ctx in service.get('required_data', []):
- context.update(ctx)
- context['ctx'].update(ctx)
-
- result = templating.render(self.source, self.target, context,
- self.owner, self.group, self.perms,
- template_loader=self.template_loader)
- if self.on_change_action:
- if pre_checksum == host.file_hash(self.target):
- hookenv.log(
- 'No change detected: {}'.format(self.target),
- hookenv.DEBUG)
- else:
- self.on_change_action()
-
- return result
-
-
-# Convenience aliases for templates
-render_template = template = TemplateCallback
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/strutils.py b/charms/trusty/cassandra/hooks/charmhelpers/core/strutils.py
deleted file mode 100644
index 7e3f969..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/strutils.py
+++ /dev/null
@@ -1,72 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import six
-import re
-
-
-def bool_from_string(value):
- """Interpret string value as boolean.
-
- Returns True if value translates to True otherwise False.
- """
- if isinstance(value, six.string_types):
- value = six.text_type(value)
- else:
- msg = "Unable to interpret non-string value '%s' as boolean" % (value)
- raise ValueError(msg)
-
- value = value.strip().lower()
-
- if value in ['y', 'yes', 'true', 't', 'on']:
- return True
- elif value in ['n', 'no', 'false', 'f', 'off']:
- return False
-
- msg = "Unable to interpret string value '%s' as boolean" % (value)
- raise ValueError(msg)
-
-
-def bytes_from_string(value):
- """Interpret human readable string value as bytes.
-
- Returns int
- """
- BYTE_POWER = {
- 'K': 1,
- 'KB': 1,
- 'M': 2,
- 'MB': 2,
- 'G': 3,
- 'GB': 3,
- 'T': 4,
- 'TB': 4,
- 'P': 5,
- 'PB': 5,
- }
- if isinstance(value, six.string_types):
- value = six.text_type(value)
- else:
- msg = "Unable to interpret non-string value '%s' as boolean" % (value)
- raise ValueError(msg)
- matches = re.match("([0-9]+)([a-zA-Z]+)", value)
- if not matches:
- msg = "Unable to interpret string value '%s' as bytes" % (value)
- raise ValueError(msg)
- return int(matches.group(1)) * (1024 ** BYTE_POWER[matches.group(2)])
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/sysctl.py b/charms/trusty/cassandra/hooks/charmhelpers/core/sysctl.py
deleted file mode 100644
index 21cc8ab..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/sysctl.py
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import yaml
-
-from subprocess import check_call
-
-from charmhelpers.core.hookenv import (
- log,
- DEBUG,
- ERROR,
-)
-
-__author__ = 'Jorge Niedbalski R. <jorge.niedbalski@canonical.com>'
-
-
-def create(sysctl_dict, sysctl_file):
- """Creates a sysctl.conf file from a YAML associative array
-
- :param sysctl_dict: a YAML-formatted string of sysctl options eg "{ 'kernel.max_pid': 1337 }"
- :type sysctl_dict: str
- :param sysctl_file: path to the sysctl file to be saved
- :type sysctl_file: str or unicode
- :returns: None
- """
- try:
- sysctl_dict_parsed = yaml.safe_load(sysctl_dict)
- except yaml.YAMLError:
- log("Error parsing YAML sysctl_dict: {}".format(sysctl_dict),
- level=ERROR)
- return
-
- with open(sysctl_file, "w") as fd:
- for key, value in sysctl_dict_parsed.items():
- fd.write("{}={}\n".format(key, value))
-
- log("Updating sysctl_file: %s values: %s" % (sysctl_file, sysctl_dict_parsed),
- level=DEBUG)
-
- check_call(["sysctl", "-p", sysctl_file])
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/templating.py b/charms/trusty/cassandra/hooks/charmhelpers/core/templating.py
deleted file mode 100644
index d2d8eaf..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/templating.py
+++ /dev/null
@@ -1,81 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import os
-
-from charmhelpers.core import host
-from charmhelpers.core import hookenv
-
-
-def render(source, target, context, owner='root', group='root',
- perms=0o444, templates_dir=None, encoding='UTF-8', template_loader=None):
- """
- Render a template.
-
- The `source` path, if not absolute, is relative to the `templates_dir`.
-
- The `target` path should be absolute. It can also be `None`, in which
- case no file will be written.
-
- The context should be a dict containing the values to be replaced in the
- template.
-
- The `owner`, `group`, and `perms` options will be passed to `write_file`.
-
- If omitted, `templates_dir` defaults to the `templates` folder in the charm.
-
- The rendered template will be written to the file as well as being returned
- as a string.
-
- Note: Using this requires python-jinja2; if it is not installed, calling
- this will attempt to use charmhelpers.fetch.apt_install to install it.
- """
- try:
- from jinja2 import FileSystemLoader, Environment, exceptions
- except ImportError:
- try:
- from charmhelpers.fetch import apt_install
- except ImportError:
- hookenv.log('Could not import jinja2, and could not import '
- 'charmhelpers.fetch to install it',
- level=hookenv.ERROR)
- raise
- apt_install('python-jinja2', fatal=True)
- from jinja2 import FileSystemLoader, Environment, exceptions
-
- if template_loader:
- template_env = Environment(loader=template_loader)
- else:
- if templates_dir is None:
- templates_dir = os.path.join(hookenv.charm_dir(), 'templates')
- template_env = Environment(loader=FileSystemLoader(templates_dir))
- try:
- source = source
- template = template_env.get_template(source)
- except exceptions.TemplateNotFound as e:
- hookenv.log('Could not load template %s from %s.' %
- (source, templates_dir),
- level=hookenv.ERROR)
- raise e
- content = template.render(context)
- if target is not None:
- target_dir = os.path.dirname(target)
- if not os.path.exists(target_dir):
- # This is a terrible default directory permission, as the file
- # or its siblings will often contain secrets.
- host.mkdir(os.path.dirname(target), owner, group, perms=0o755)
- host.write_file(target, content.encode(encoding), owner, group, perms)
- return content
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/core/unitdata.py b/charms/trusty/cassandra/hooks/charmhelpers/core/unitdata.py
deleted file mode 100644
index 338104e..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/core/unitdata.py
+++ /dev/null
@@ -1,521 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-#
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-#
-#
-# Authors:
-# Kapil Thangavelu <kapil.foss@gmail.com>
-#
-"""
-Intro
------
-
-A simple way to store state in units. This provides a key value
-storage with support for versioned, transactional operation,
-and can calculate deltas from previous values to simplify unit logic
-when processing changes.
-
-
-Hook Integration
-----------------
-
-There are several extant frameworks for hook execution, including
-
- - charmhelpers.core.hookenv.Hooks
- - charmhelpers.core.services.ServiceManager
-
-The storage classes are framework agnostic, one simple integration is
-via the HookData contextmanager. It will record the current hook
-execution environment (including relation data, config data, etc.),
-setup a transaction and allow easy access to the changes from
-previously seen values. One consequence of the integration is the
-reservation of particular keys ('rels', 'unit', 'env', 'config',
-'charm_revisions') for their respective values.
-
-Here's a fully worked integration example using hookenv.Hooks::
-
- from charmhelper.core import hookenv, unitdata
-
- hook_data = unitdata.HookData()
- db = unitdata.kv()
- hooks = hookenv.Hooks()
-
- @hooks.hook
- def config_changed():
- # Print all changes to configuration from previously seen
- # values.
- for changed, (prev, cur) in hook_data.conf.items():
- print('config changed', changed,
- 'previous value', prev,
- 'current value', cur)
-
- # Get some unit specific bookeeping
- if not db.get('pkg_key'):
- key = urllib.urlopen('https://example.com/pkg_key').read()
- db.set('pkg_key', key)
-
- # Directly access all charm config as a mapping.
- conf = db.getrange('config', True)
-
- # Directly access all relation data as a mapping
- rels = db.getrange('rels', True)
-
- if __name__ == '__main__':
- with hook_data():
- hook.execute()
-
-
-A more basic integration is via the hook_scope context manager which simply
-manages transaction scope (and records hook name, and timestamp)::
-
- >>> from unitdata import kv
- >>> db = kv()
- >>> with db.hook_scope('install'):
- ... # do work, in transactional scope.
- ... db.set('x', 1)
- >>> db.get('x')
- 1
-
-
-Usage
------
-
-Values are automatically json de/serialized to preserve basic typing
-and complex data struct capabilities (dicts, lists, ints, booleans, etc).
-
-Individual values can be manipulated via get/set::
-
- >>> kv.set('y', True)
- >>> kv.get('y')
- True
-
- # We can set complex values (dicts, lists) as a single key.
- >>> kv.set('config', {'a': 1, 'b': True'})
-
- # Also supports returning dictionaries as a record which
- # provides attribute access.
- >>> config = kv.get('config', record=True)
- >>> config.b
- True
-
-
-Groups of keys can be manipulated with update/getrange::
-
- >>> kv.update({'z': 1, 'y': 2}, prefix="gui.")
- >>> kv.getrange('gui.', strip=True)
- {'z': 1, 'y': 2}
-
-When updating values, its very helpful to understand which values
-have actually changed and how have they changed. The storage
-provides a delta method to provide for this::
-
- >>> data = {'debug': True, 'option': 2}
- >>> delta = kv.delta(data, 'config.')
- >>> delta.debug.previous
- None
- >>> delta.debug.current
- True
- >>> delta
- {'debug': (None, True), 'option': (None, 2)}
-
-Note the delta method does not persist the actual change, it needs to
-be explicitly saved via 'update' method::
-
- >>> kv.update(data, 'config.')
-
-Values modified in the context of a hook scope retain historical values
-associated to the hookname.
-
- >>> with db.hook_scope('config-changed'):
- ... db.set('x', 42)
- >>> db.gethistory('x')
- [(1, u'x', 1, u'install', u'2015-01-21T16:49:30.038372'),
- (2, u'x', 42, u'config-changed', u'2015-01-21T16:49:30.038786')]
-
-"""
-
-import collections
-import contextlib
-import datetime
-import itertools
-import json
-import os
-import pprint
-import sqlite3
-import sys
-
-__author__ = 'Kapil Thangavelu <kapil.foss@gmail.com>'
-
-
-class Storage(object):
- """Simple key value database for local unit state within charms.
-
- Modifications are not persisted unless :meth:`flush` is called.
-
- To support dicts, lists, integer, floats, and booleans values
- are automatically json encoded/decoded.
- """
- def __init__(self, path=None):
- self.db_path = path
- if path is None:
- if 'UNIT_STATE_DB' in os.environ:
- self.db_path = os.environ['UNIT_STATE_DB']
- else:
- self.db_path = os.path.join(
- os.environ.get('CHARM_DIR', ''), '.unit-state.db')
- self.conn = sqlite3.connect('%s' % self.db_path)
- self.cursor = self.conn.cursor()
- self.revision = None
- self._closed = False
- self._init()
-
- def close(self):
- if self._closed:
- return
- self.flush(False)
- self.cursor.close()
- self.conn.close()
- self._closed = True
-
- def get(self, key, default=None, record=False):
- self.cursor.execute('select data from kv where key=?', [key])
- result = self.cursor.fetchone()
- if not result:
- return default
- if record:
- return Record(json.loads(result[0]))
- return json.loads(result[0])
-
- def getrange(self, key_prefix, strip=False):
- """
- Get a range of keys starting with a common prefix as a mapping of
- keys to values.
-
- :param str key_prefix: Common prefix among all keys
- :param bool strip: Optionally strip the common prefix from the key
- names in the returned dict
- :return dict: A (possibly empty) dict of key-value mappings
- """
- self.cursor.execute("select key, data from kv where key like ?",
- ['%s%%' % key_prefix])
- result = self.cursor.fetchall()
-
- if not result:
- return {}
- if not strip:
- key_prefix = ''
- return dict([
- (k[len(key_prefix):], json.loads(v)) for k, v in result])
-
- def update(self, mapping, prefix=""):
- """
- Set the values of multiple keys at once.
-
- :param dict mapping: Mapping of keys to values
- :param str prefix: Optional prefix to apply to all keys in `mapping`
- before setting
- """
- for k, v in mapping.items():
- self.set("%s%s" % (prefix, k), v)
-
- def unset(self, key):
- """
- Remove a key from the database entirely.
- """
- self.cursor.execute('delete from kv where key=?', [key])
- if self.revision and self.cursor.rowcount:
- self.cursor.execute(
- 'insert into kv_revisions values (?, ?, ?)',
- [key, self.revision, json.dumps('DELETED')])
-
- def unsetrange(self, keys=None, prefix=""):
- """
- Remove a range of keys starting with a common prefix, from the database
- entirely.
-
- :param list keys: List of keys to remove.
- :param str prefix: Optional prefix to apply to all keys in ``keys``
- before removing.
- """
- if keys is not None:
- keys = ['%s%s' % (prefix, key) for key in keys]
- self.cursor.execute('delete from kv where key in (%s)' % ','.join(['?'] * len(keys)), keys)
- if self.revision and self.cursor.rowcount:
- self.cursor.execute(
- 'insert into kv_revisions values %s' % ','.join(['(?, ?, ?)'] * len(keys)),
- list(itertools.chain.from_iterable((key, self.revision, json.dumps('DELETED')) for key in keys)))
- else:
- self.cursor.execute('delete from kv where key like ?',
- ['%s%%' % prefix])
- if self.revision and self.cursor.rowcount:
- self.cursor.execute(
- 'insert into kv_revisions values (?, ?, ?)',
- ['%s%%' % prefix, self.revision, json.dumps('DELETED')])
-
- def set(self, key, value):
- """
- Set a value in the database.
-
- :param str key: Key to set the value for
- :param value: Any JSON-serializable value to be set
- """
- serialized = json.dumps(value)
-
- self.cursor.execute('select data from kv where key=?', [key])
- exists = self.cursor.fetchone()
-
- # Skip mutations to the same value
- if exists:
- if exists[0] == serialized:
- return value
-
- if not exists:
- self.cursor.execute(
- 'insert into kv (key, data) values (?, ?)',
- (key, serialized))
- else:
- self.cursor.execute('''
- update kv
- set data = ?
- where key = ?''', [serialized, key])
-
- # Save
- if not self.revision:
- return value
-
- self.cursor.execute(
- 'select 1 from kv_revisions where key=? and revision=?',
- [key, self.revision])
- exists = self.cursor.fetchone()
-
- if not exists:
- self.cursor.execute(
- '''insert into kv_revisions (
- revision, key, data) values (?, ?, ?)''',
- (self.revision, key, serialized))
- else:
- self.cursor.execute(
- '''
- update kv_revisions
- set data = ?
- where key = ?
- and revision = ?''',
- [serialized, key, self.revision])
-
- return value
-
- def delta(self, mapping, prefix):
- """
- return a delta containing values that have changed.
- """
- previous = self.getrange(prefix, strip=True)
- if not previous:
- pk = set()
- else:
- pk = set(previous.keys())
- ck = set(mapping.keys())
- delta = DeltaSet()
-
- # added
- for k in ck.difference(pk):
- delta[k] = Delta(None, mapping[k])
-
- # removed
- for k in pk.difference(ck):
- delta[k] = Delta(previous[k], None)
-
- # changed
- for k in pk.intersection(ck):
- c = mapping[k]
- p = previous[k]
- if c != p:
- delta[k] = Delta(p, c)
-
- return delta
-
- @contextlib.contextmanager
- def hook_scope(self, name=""):
- """Scope all future interactions to the current hook execution
- revision."""
- assert not self.revision
- self.cursor.execute(
- 'insert into hooks (hook, date) values (?, ?)',
- (name or sys.argv[0],
- datetime.datetime.utcnow().isoformat()))
- self.revision = self.cursor.lastrowid
- try:
- yield self.revision
- self.revision = None
- except:
- self.flush(False)
- self.revision = None
- raise
- else:
- self.flush()
-
- def flush(self, save=True):
- if save:
- self.conn.commit()
- elif self._closed:
- return
- else:
- self.conn.rollback()
-
- def _init(self):
- self.cursor.execute('''
- create table if not exists kv (
- key text,
- data text,
- primary key (key)
- )''')
- self.cursor.execute('''
- create table if not exists kv_revisions (
- key text,
- revision integer,
- data text,
- primary key (key, revision)
- )''')
- self.cursor.execute('''
- create table if not exists hooks (
- version integer primary key autoincrement,
- hook text,
- date text
- )''')
- self.conn.commit()
-
- def gethistory(self, key, deserialize=False):
- self.cursor.execute(
- '''
- select kv.revision, kv.key, kv.data, h.hook, h.date
- from kv_revisions kv,
- hooks h
- where kv.key=?
- and kv.revision = h.version
- ''', [key])
- if deserialize is False:
- return self.cursor.fetchall()
- return map(_parse_history, self.cursor.fetchall())
-
- def debug(self, fh=sys.stderr):
- self.cursor.execute('select * from kv')
- pprint.pprint(self.cursor.fetchall(), stream=fh)
- self.cursor.execute('select * from kv_revisions')
- pprint.pprint(self.cursor.fetchall(), stream=fh)
-
-
-def _parse_history(d):
- return (d[0], d[1], json.loads(d[2]), d[3],
- datetime.datetime.strptime(d[-1], "%Y-%m-%dT%H:%M:%S.%f"))
-
-
-class HookData(object):
- """Simple integration for existing hook exec frameworks.
-
- Records all unit information, and stores deltas for processing
- by the hook.
-
- Sample::
-
- from charmhelper.core import hookenv, unitdata
-
- changes = unitdata.HookData()
- db = unitdata.kv()
- hooks = hookenv.Hooks()
-
- @hooks.hook
- def config_changed():
- # View all changes to configuration
- for changed, (prev, cur) in changes.conf.items():
- print('config changed', changed,
- 'previous value', prev,
- 'current value', cur)
-
- # Get some unit specific bookeeping
- if not db.get('pkg_key'):
- key = urllib.urlopen('https://example.com/pkg_key').read()
- db.set('pkg_key', key)
-
- if __name__ == '__main__':
- with changes():
- hook.execute()
-
- """
- def __init__(self):
- self.kv = kv()
- self.conf = None
- self.rels = None
-
- @contextlib.contextmanager
- def __call__(self):
- from charmhelpers.core import hookenv
- hook_name = hookenv.hook_name()
-
- with self.kv.hook_scope(hook_name):
- self._record_charm_version(hookenv.charm_dir())
- delta_config, delta_relation = self._record_hook(hookenv)
- yield self.kv, delta_config, delta_relation
-
- def _record_charm_version(self, charm_dir):
- # Record revisions.. charm revisions are meaningless
- # to charm authors as they don't control the revision.
- # so logic dependnent on revision is not particularly
- # useful, however it is useful for debugging analysis.
- charm_rev = open(
- os.path.join(charm_dir, 'revision')).read().strip()
- charm_rev = charm_rev or '0'
- revs = self.kv.get('charm_revisions', [])
- if charm_rev not in revs:
- revs.append(charm_rev.strip() or '0')
- self.kv.set('charm_revisions', revs)
-
- def _record_hook(self, hookenv):
- data = hookenv.execution_environment()
- self.conf = conf_delta = self.kv.delta(data['conf'], 'config')
- self.rels = rels_delta = self.kv.delta(data['rels'], 'rels')
- self.kv.set('env', dict(data['env']))
- self.kv.set('unit', data['unit'])
- self.kv.set('relid', data.get('relid'))
- return conf_delta, rels_delta
-
-
-class Record(dict):
-
- __slots__ = ()
-
- def __getattr__(self, k):
- if k in self:
- return self[k]
- raise AttributeError(k)
-
-
-class DeltaSet(Record):
-
- __slots__ = ()
-
-
-Delta = collections.namedtuple('Delta', ['previous', 'current'])
-
-
-_KV = None
-
-
-def kv():
- global _KV
- if _KV is None:
- _KV = Storage()
- return _KV
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/fetch/__init__.py b/charms/trusty/cassandra/hooks/charmhelpers/fetch/__init__.py
deleted file mode 100644
index 6dfe7ed..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/fetch/__init__.py
+++ /dev/null
@@ -1,468 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import importlib
-from tempfile import NamedTemporaryFile
-import time
-from yaml import safe_load
-from charmhelpers.core.host import (
- lsb_release
-)
-import subprocess
-from charmhelpers.core.hookenv import (
- config,
- log,
-)
-import os
-
-import six
-if six.PY3:
- from urllib.parse import urlparse, urlunparse
-else:
- from urlparse import urlparse, urlunparse
-
-
-CLOUD_ARCHIVE = """# Ubuntu Cloud Archive
-deb http://ubuntu-cloud.archive.canonical.com/ubuntu {} main
-"""
-PROPOSED_POCKET = """# Proposed
-deb http://archive.ubuntu.com/ubuntu {}-proposed main universe multiverse restricted
-"""
-CLOUD_ARCHIVE_POCKETS = {
- # Folsom
- 'folsom': 'precise-updates/folsom',
- 'precise-folsom': 'precise-updates/folsom',
- 'precise-folsom/updates': 'precise-updates/folsom',
- 'precise-updates/folsom': 'precise-updates/folsom',
- 'folsom/proposed': 'precise-proposed/folsom',
- 'precise-folsom/proposed': 'precise-proposed/folsom',
- 'precise-proposed/folsom': 'precise-proposed/folsom',
- # Grizzly
- 'grizzly': 'precise-updates/grizzly',
- 'precise-grizzly': 'precise-updates/grizzly',
- 'precise-grizzly/updates': 'precise-updates/grizzly',
- 'precise-updates/grizzly': 'precise-updates/grizzly',
- 'grizzly/proposed': 'precise-proposed/grizzly',
- 'precise-grizzly/proposed': 'precise-proposed/grizzly',
- 'precise-proposed/grizzly': 'precise-proposed/grizzly',
- # Havana
- 'havana': 'precise-updates/havana',
- 'precise-havana': 'precise-updates/havana',
- 'precise-havana/updates': 'precise-updates/havana',
- 'precise-updates/havana': 'precise-updates/havana',
- 'havana/proposed': 'precise-proposed/havana',
- 'precise-havana/proposed': 'precise-proposed/havana',
- 'precise-proposed/havana': 'precise-proposed/havana',
- # Icehouse
- 'icehouse': 'precise-updates/icehouse',
- 'precise-icehouse': 'precise-updates/icehouse',
- 'precise-icehouse/updates': 'precise-updates/icehouse',
- 'precise-updates/icehouse': 'precise-updates/icehouse',
- 'icehouse/proposed': 'precise-proposed/icehouse',
- 'precise-icehouse/proposed': 'precise-proposed/icehouse',
- 'precise-proposed/icehouse': 'precise-proposed/icehouse',
- # Juno
- 'juno': 'trusty-updates/juno',
- 'trusty-juno': 'trusty-updates/juno',
- 'trusty-juno/updates': 'trusty-updates/juno',
- 'trusty-updates/juno': 'trusty-updates/juno',
- 'juno/proposed': 'trusty-proposed/juno',
- 'trusty-juno/proposed': 'trusty-proposed/juno',
- 'trusty-proposed/juno': 'trusty-proposed/juno',
- # Kilo
- 'kilo': 'trusty-updates/kilo',
- 'trusty-kilo': 'trusty-updates/kilo',
- 'trusty-kilo/updates': 'trusty-updates/kilo',
- 'trusty-updates/kilo': 'trusty-updates/kilo',
- 'kilo/proposed': 'trusty-proposed/kilo',
- 'trusty-kilo/proposed': 'trusty-proposed/kilo',
- 'trusty-proposed/kilo': 'trusty-proposed/kilo',
- # Liberty
- 'liberty': 'trusty-updates/liberty',
- 'trusty-liberty': 'trusty-updates/liberty',
- 'trusty-liberty/updates': 'trusty-updates/liberty',
- 'trusty-updates/liberty': 'trusty-updates/liberty',
- 'liberty/proposed': 'trusty-proposed/liberty',
- 'trusty-liberty/proposed': 'trusty-proposed/liberty',
- 'trusty-proposed/liberty': 'trusty-proposed/liberty',
- # Mitaka
- 'mitaka': 'trusty-updates/mitaka',
- 'trusty-mitaka': 'trusty-updates/mitaka',
- 'trusty-mitaka/updates': 'trusty-updates/mitaka',
- 'trusty-updates/mitaka': 'trusty-updates/mitaka',
- 'mitaka/proposed': 'trusty-proposed/mitaka',
- 'trusty-mitaka/proposed': 'trusty-proposed/mitaka',
- 'trusty-proposed/mitaka': 'trusty-proposed/mitaka',
-}
-
-# The order of this list is very important. Handlers should be listed in from
-# least- to most-specific URL matching.
-FETCH_HANDLERS = (
- 'charmhelpers.fetch.archiveurl.ArchiveUrlFetchHandler',
- 'charmhelpers.fetch.bzrurl.BzrUrlFetchHandler',
- 'charmhelpers.fetch.giturl.GitUrlFetchHandler',
-)
-
-APT_NO_LOCK = 100 # The return code for "couldn't acquire lock" in APT.
-APT_NO_LOCK_RETRY_DELAY = 10 # Wait 10 seconds between apt lock checks.
-APT_NO_LOCK_RETRY_COUNT = 30 # Retry to acquire the lock X times.
-
-
-class SourceConfigError(Exception):
- pass
-
-
-class UnhandledSource(Exception):
- pass
-
-
-class AptLockError(Exception):
- pass
-
-
-class BaseFetchHandler(object):
-
- """Base class for FetchHandler implementations in fetch plugins"""
-
- def can_handle(self, source):
- """Returns True if the source can be handled. Otherwise returns
- a string explaining why it cannot"""
- return "Wrong source type"
-
- def install(self, source):
- """Try to download and unpack the source. Return the path to the
- unpacked files or raise UnhandledSource."""
- raise UnhandledSource("Wrong source type {}".format(source))
-
- def parse_url(self, url):
- return urlparse(url)
-
- def base_url(self, url):
- """Return url without querystring or fragment"""
- parts = list(self.parse_url(url))
- parts[4:] = ['' for i in parts[4:]]
- return urlunparse(parts)
-
-
-def filter_installed_packages(packages):
- """Returns a list of packages that require installation"""
- cache = apt_cache()
- _pkgs = []
- for package in packages:
- try:
- p = cache[package]
- p.current_ver or _pkgs.append(package)
- except KeyError:
- log('Package {} has no installation candidate.'.format(package),
- level='WARNING')
- _pkgs.append(package)
- return _pkgs
-
-
-def apt_cache(in_memory=True):
- """Build and return an apt cache"""
- from apt import apt_pkg
- apt_pkg.init()
- if in_memory:
- apt_pkg.config.set("Dir::Cache::pkgcache", "")
- apt_pkg.config.set("Dir::Cache::srcpkgcache", "")
- return apt_pkg.Cache()
-
-
-def apt_install(packages, options=None, fatal=False):
- """Install one or more packages"""
- if options is None:
- options = ['--option=Dpkg::Options::=--force-confold']
-
- cmd = ['apt-get', '--assume-yes', '--force-yes']
- cmd.extend(options)
- cmd.append('install')
- if isinstance(packages, six.string_types):
- cmd.append(packages)
- else:
- cmd.extend(packages)
- log("Installing {} with options: {}".format(packages,
- options))
- _run_apt_command(cmd, fatal)
-
-
-def apt_upgrade(options=None, fatal=False, dist=False):
- """Upgrade all packages"""
- if options is None:
- options = ['--option=Dpkg::Options::=--force-confold']
-
- cmd = ['apt-get', '--assume-yes']
- cmd.extend(options)
- if dist:
- cmd.append('dist-upgrade')
- else:
- cmd.append('upgrade')
- log("Upgrading with options: {}".format(options))
- _run_apt_command(cmd, fatal)
-
-
-def apt_update(fatal=False):
- """Update local apt cache"""
- cmd = ['apt-get', 'update']
- _run_apt_command(cmd, fatal)
-
-
-def apt_purge(packages, fatal=False):
- """Purge one or more packages"""
- cmd = ['apt-get', '--assume-yes', 'purge']
- if isinstance(packages, six.string_types):
- cmd.append(packages)
- else:
- cmd.extend(packages)
- log("Purging {}".format(packages))
- _run_apt_command(cmd, fatal)
-
-
-def apt_mark(packages, mark, fatal=False):
- """Flag one or more packages using apt-mark"""
- log("Marking {} as {}".format(packages, mark))
- cmd = ['apt-mark', mark]
- if isinstance(packages, six.string_types):
- cmd.append(packages)
- else:
- cmd.extend(packages)
-
- if fatal:
- subprocess.check_call(cmd, universal_newlines=True)
- else:
- subprocess.call(cmd, universal_newlines=True)
-
-
-def apt_hold(packages, fatal=False):
- return apt_mark(packages, 'hold', fatal=fatal)
-
-
-def apt_unhold(packages, fatal=False):
- return apt_mark(packages, 'unhold', fatal=fatal)
-
-
-def add_source(source, key=None):
- """Add a package source to this system.
-
- @param source: a URL or sources.list entry, as supported by
- add-apt-repository(1). Examples::
-
- ppa:charmers/example
- deb https://stub:key@private.example.com/ubuntu trusty main
-
- In addition:
- 'proposed:' may be used to enable the standard 'proposed'
- pocket for the release.
- 'cloud:' may be used to activate official cloud archive pockets,
- such as 'cloud:icehouse'
- 'distro' may be used as a noop
-
- @param key: A key to be added to the system's APT keyring and used
- to verify the signatures on packages. Ideally, this should be an
- ASCII format GPG public key including the block headers. A GPG key
- id may also be used, but be aware that only insecure protocols are
- available to retrieve the actual public key from a public keyserver
- placing your Juju environment at risk. ppa and cloud archive keys
- are securely added automtically, so sould not be provided.
- """
- if source is None:
- log('Source is not present. Skipping')
- return
-
- if (source.startswith('ppa:') or
- source.startswith('http') or
- source.startswith('deb ') or
- source.startswith('cloud-archive:')):
- subprocess.check_call(['add-apt-repository', '--yes', source])
- elif source.startswith('cloud:'):
- apt_install(filter_installed_packages(['ubuntu-cloud-keyring']),
- fatal=True)
- pocket = source.split(':')[-1]
- if pocket not in CLOUD_ARCHIVE_POCKETS:
- raise SourceConfigError(
- 'Unsupported cloud: source option %s' %
- pocket)
- actual_pocket = CLOUD_ARCHIVE_POCKETS[pocket]
- with open('/etc/apt/sources.list.d/cloud-archive.list', 'w') as apt:
- apt.write(CLOUD_ARCHIVE.format(actual_pocket))
- elif source == 'proposed':
- release = lsb_release()['DISTRIB_CODENAME']
- with open('/etc/apt/sources.list.d/proposed.list', 'w') as apt:
- apt.write(PROPOSED_POCKET.format(release))
- elif source == 'distro':
- pass
- else:
- log("Unknown source: {!r}".format(source))
-
- if key:
- if '-----BEGIN PGP PUBLIC KEY BLOCK-----' in key:
- with NamedTemporaryFile('w+') as key_file:
- key_file.write(key)
- key_file.flush()
- key_file.seek(0)
- subprocess.check_call(['apt-key', 'add', '-'], stdin=key_file)
- elif 'http://' in key:
- with NamedTemporaryFile('w+') as key_file:
- subprocess.check_call(['wget', key, '-O-'], stdout=key_file)
- subprocess.check_call(['apt-key', 'add', key_file.name])
- else:
- # Note that hkp: is in no way a secure protocol. Using a
- # GPG key id is pointless from a security POV unless you
- # absolutely trust your network and DNS.
- subprocess.check_call(['apt-key', 'adv', '--keyserver',
- 'hkp://keyserver.ubuntu.com:80', '--recv',
- key])
-
-
-def configure_sources(update=False,
- sources_var='install_sources',
- keys_var='install_keys'):
- """
- Configure multiple sources from charm configuration.
-
- The lists are encoded as yaml fragments in the configuration.
- The frament needs to be included as a string. Sources and their
- corresponding keys are of the types supported by add_source().
-
- Example config:
- install_sources: |
- - "ppa:foo"
- - "http://example.com/repo precise main"
- install_keys: |
- - null
- - "a1b2c3d4"
-
- Note that 'null' (a.k.a. None) should not be quoted.
- """
- sources = safe_load((config(sources_var) or '').strip()) or []
- keys = safe_load((config(keys_var) or '').strip()) or None
-
- if isinstance(sources, six.string_types):
- sources = [sources]
-
- if keys is None:
- for source in sources:
- add_source(source, None)
- else:
- if isinstance(keys, six.string_types):
- keys = [keys]
-
- if len(sources) != len(keys):
- raise SourceConfigError(
- 'Install sources and keys lists are different lengths')
- for source, key in zip(sources, keys):
- add_source(source, key)
- if update:
- apt_update(fatal=True)
-
-
-def install_remote(source, *args, **kwargs):
- """
- Install a file tree from a remote source
-
- The specified source should be a url of the form:
- scheme://[host]/path[#[option=value][&...]]
-
- Schemes supported are based on this modules submodules.
- Options supported are submodule-specific.
- Additional arguments are passed through to the submodule.
-
- For example::
-
- dest = install_remote('http://example.com/archive.tgz',
- checksum='deadbeef',
- hash_type='sha1')
-
- This will download `archive.tgz`, validate it using SHA1 and, if
- the file is ok, extract it and return the directory in which it
- was extracted. If the checksum fails, it will raise
- :class:`charmhelpers.core.host.ChecksumError`.
- """
- # We ONLY check for True here because can_handle may return a string
- # explaining why it can't handle a given source.
- handlers = [h for h in plugins() if h.can_handle(source) is True]
- installed_to = None
- for handler in handlers:
- try:
- installed_to = handler.install(source, *args, **kwargs)
- except UnhandledSource as e:
- log('Install source attempt unsuccessful: {}'.format(e),
- level='WARNING')
- if not installed_to:
- raise UnhandledSource("No handler found for source {}".format(source))
- return installed_to
-
-
-def install_from_config(config_var_name):
- charm_config = config()
- source = charm_config[config_var_name]
- return install_remote(source)
-
-
-def plugins(fetch_handlers=None):
- if not fetch_handlers:
- fetch_handlers = FETCH_HANDLERS
- plugin_list = []
- for handler_name in fetch_handlers:
- package, classname = handler_name.rsplit('.', 1)
- try:
- handler_class = getattr(
- importlib.import_module(package),
- classname)
- plugin_list.append(handler_class())
- except NotImplementedError:
- # Skip missing plugins so that they can be ommitted from
- # installation if desired
- log("FetchHandler {} not found, skipping plugin".format(
- handler_name))
- return plugin_list
-
-
-def _run_apt_command(cmd, fatal=False):
- """
- Run an APT command, checking output and retrying if the fatal flag is set
- to True.
-
- :param: cmd: str: The apt command to run.
- :param: fatal: bool: Whether the command's output should be checked and
- retried.
- """
- env = os.environ.copy()
-
- if 'DEBIAN_FRONTEND' not in env:
- env['DEBIAN_FRONTEND'] = 'noninteractive'
-
- if fatal:
- retry_count = 0
- result = None
-
- # If the command is considered "fatal", we need to retry if the apt
- # lock was not acquired.
-
- while result is None or result == APT_NO_LOCK:
- try:
- result = subprocess.check_call(cmd, env=env)
- except subprocess.CalledProcessError as e:
- retry_count = retry_count + 1
- if retry_count > APT_NO_LOCK_RETRY_COUNT:
- raise
- result = e.returncode
- log("Couldn't acquire DPKG lock. Will retry in {} seconds."
- "".format(APT_NO_LOCK_RETRY_DELAY))
- time.sleep(APT_NO_LOCK_RETRY_DELAY)
-
- else:
- subprocess.call(cmd, env=env)
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/fetch/archiveurl.py b/charms/trusty/cassandra/hooks/charmhelpers/fetch/archiveurl.py
deleted file mode 100644
index b8e0943..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/fetch/archiveurl.py
+++ /dev/null
@@ -1,167 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import os
-import hashlib
-import re
-
-from charmhelpers.fetch import (
- BaseFetchHandler,
- UnhandledSource
-)
-from charmhelpers.payload.archive import (
- get_archive_handler,
- extract,
-)
-from charmhelpers.core.host import mkdir, check_hash
-
-import six
-if six.PY3:
- from urllib.request import (
- build_opener, install_opener, urlopen, urlretrieve,
- HTTPPasswordMgrWithDefaultRealm, HTTPBasicAuthHandler,
- )
- from urllib.parse import urlparse, urlunparse, parse_qs
- from urllib.error import URLError
-else:
- from urllib import urlretrieve
- from urllib2 import (
- build_opener, install_opener, urlopen,
- HTTPPasswordMgrWithDefaultRealm, HTTPBasicAuthHandler,
- URLError
- )
- from urlparse import urlparse, urlunparse, parse_qs
-
-
-def splituser(host):
- '''urllib.splituser(), but six's support of this seems broken'''
- _userprog = re.compile('^(.*)@(.*)$')
- match = _userprog.match(host)
- if match:
- return match.group(1, 2)
- return None, host
-
-
-def splitpasswd(user):
- '''urllib.splitpasswd(), but six's support of this is missing'''
- _passwdprog = re.compile('^([^:]*):(.*)$', re.S)
- match = _passwdprog.match(user)
- if match:
- return match.group(1, 2)
- return user, None
-
-
-class ArchiveUrlFetchHandler(BaseFetchHandler):
- """
- Handler to download archive files from arbitrary URLs.
-
- Can fetch from http, https, ftp, and file URLs.
-
- Can install either tarballs (.tar, .tgz, .tbz2, etc) or zip files.
-
- Installs the contents of the archive in $CHARM_DIR/fetched/.
- """
- def can_handle(self, source):
- url_parts = self.parse_url(source)
- if url_parts.scheme not in ('http', 'https', 'ftp', 'file'):
- # XXX: Why is this returning a boolean and a string? It's
- # doomed to fail since "bool(can_handle('foo://'))" will be True.
- return "Wrong source type"
- if get_archive_handler(self.base_url(source)):
- return True
- return False
-
- def download(self, source, dest):
- """
- Download an archive file.
-
- :param str source: URL pointing to an archive file.
- :param str dest: Local path location to download archive file to.
- """
- # propogate all exceptions
- # URLError, OSError, etc
- proto, netloc, path, params, query, fragment = urlparse(source)
- if proto in ('http', 'https'):
- auth, barehost = splituser(netloc)
- if auth is not None:
- source = urlunparse((proto, barehost, path, params, query, fragment))
- username, password = splitpasswd(auth)
- passman = HTTPPasswordMgrWithDefaultRealm()
- # Realm is set to None in add_password to force the username and password
- # to be used whatever the realm
- passman.add_password(None, source, username, password)
- authhandler = HTTPBasicAuthHandler(passman)
- opener = build_opener(authhandler)
- install_opener(opener)
- response = urlopen(source)
- try:
- with open(dest, 'wb') as dest_file:
- dest_file.write(response.read())
- except Exception as e:
- if os.path.isfile(dest):
- os.unlink(dest)
- raise e
-
- # Mandatory file validation via Sha1 or MD5 hashing.
- def download_and_validate(self, url, hashsum, validate="sha1"):
- tempfile, headers = urlretrieve(url)
- check_hash(tempfile, hashsum, validate)
- return tempfile
-
- def install(self, source, dest=None, checksum=None, hash_type='sha1'):
- """
- Download and install an archive file, with optional checksum validation.
-
- The checksum can also be given on the `source` URL's fragment.
- For example::
-
- handler.install('http://example.com/file.tgz#sha1=deadbeef')
-
- :param str source: URL pointing to an archive file.
- :param str dest: Local destination path to install to. If not given,
- installs to `$CHARM_DIR/archives/archive_file_name`.
- :param str checksum: If given, validate the archive file after download.
- :param str hash_type: Algorithm used to generate `checksum`.
- Can be any hash alrgorithm supported by :mod:`hashlib`,
- such as md5, sha1, sha256, sha512, etc.
-
- """
- url_parts = self.parse_url(source)
- dest_dir = os.path.join(os.environ.get('CHARM_DIR'), 'fetched')
- if not os.path.exists(dest_dir):
- mkdir(dest_dir, perms=0o755)
- dld_file = os.path.join(dest_dir, os.path.basename(url_parts.path))
- try:
- self.download(source, dld_file)
- except URLError as e:
- raise UnhandledSource(e.reason)
- except OSError as e:
- raise UnhandledSource(e.strerror)
- options = parse_qs(url_parts.fragment)
- for key, value in options.items():
- if not six.PY3:
- algorithms = hashlib.algorithms
- else:
- algorithms = hashlib.algorithms_available
- if key in algorithms:
- if len(value) != 1:
- raise TypeError(
- "Expected 1 hash value, not %d" % len(value))
- expected = value[0]
- check_hash(dld_file, expected, key)
- if checksum:
- check_hash(dld_file, checksum, hash_type)
- return extract(dld_file, dest)
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/fetch/bzrurl.py b/charms/trusty/cassandra/hooks/charmhelpers/fetch/bzrurl.py
deleted file mode 100644
index cafd27f..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/fetch/bzrurl.py
+++ /dev/null
@@ -1,68 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import os
-from subprocess import check_call
-from charmhelpers.fetch import (
- BaseFetchHandler,
- UnhandledSource,
- filter_installed_packages,
- apt_install,
-)
-from charmhelpers.core.host import mkdir
-
-
-if filter_installed_packages(['bzr']) != []:
- apt_install(['bzr'])
- if filter_installed_packages(['bzr']) != []:
- raise NotImplementedError('Unable to install bzr')
-
-
-class BzrUrlFetchHandler(BaseFetchHandler):
- """Handler for bazaar branches via generic and lp URLs"""
- def can_handle(self, source):
- url_parts = self.parse_url(source)
- if url_parts.scheme not in ('bzr+ssh', 'lp', ''):
- return False
- elif not url_parts.scheme:
- return os.path.exists(os.path.join(source, '.bzr'))
- else:
- return True
-
- def branch(self, source, dest):
- if not self.can_handle(source):
- raise UnhandledSource("Cannot handle {}".format(source))
- if os.path.exists(dest):
- check_call(['bzr', 'pull', '--overwrite', '-d', dest, source])
- else:
- check_call(['bzr', 'branch', source, dest])
-
- def install(self, source, dest=None):
- url_parts = self.parse_url(source)
- branch_name = url_parts.path.strip("/").split("/")[-1]
- if dest:
- dest_dir = os.path.join(dest, branch_name)
- else:
- dest_dir = os.path.join(os.environ.get('CHARM_DIR'), "fetched",
- branch_name)
-
- if not os.path.exists(dest_dir):
- mkdir(dest_dir, perms=0o755)
- try:
- self.branch(source, dest_dir)
- except OSError as e:
- raise UnhandledSource(e.strerror)
- return dest_dir
diff --git a/charms/trusty/cassandra/hooks/charmhelpers/fetch/giturl.py b/charms/trusty/cassandra/hooks/charmhelpers/fetch/giturl.py
deleted file mode 100644
index 65ed531..0000000
--- a/charms/trusty/cassandra/hooks/charmhelpers/fetch/giturl.py
+++ /dev/null
@@ -1,70 +0,0 @@
-# Copyright 2014-2015 Canonical Limited.
-#
-# This file is part of charm-helpers.
-#
-# charm-helpers is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License version 3 as
-# published by the Free Software Foundation.
-#
-# charm-helpers is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
-
-import os
-from subprocess import check_call, CalledProcessError
-from charmhelpers.fetch import (
- BaseFetchHandler,
- UnhandledSource,
- filter_installed_packages,
- apt_install,
-)
-
-if filter_installed_packages(['git']) != []:
- apt_install(['git'])
- if filter_installed_packages(['git']) != []:
- raise NotImplementedError('Unable to install git')
-
-
-class GitUrlFetchHandler(BaseFetchHandler):
- """Handler for git branches via generic and github URLs"""
- def can_handle(self, source):
- url_parts = self.parse_url(source)
- # TODO (mattyw) no support for ssh git@ yet
- if url_parts.scheme not in ('http', 'https', 'git', ''):
- return False
- elif not url_parts.scheme:
- return os.path.exists(os.path.join(source, '.git'))
- else:
- return True
-
- def clone(self, source, dest, branch="master", depth=None):
- if not self.can_handle(source):
- raise UnhandledSource("Cannot handle {}".format(source))
-
- if os.path.exists(dest):
- cmd = ['git', '-C', dest, 'pull', source, branch]
- else:
- cmd = ['git', 'clone', source, dest, '--branch', branch]
- if depth:
- cmd.extend(['--depth', depth])
- check_call(cmd)
-
- def install(self, source, branch="master", dest=None, depth=None):
- url_parts = self.parse_url(source)
- branch_name = url_parts.path.strip("/").split("/")[-1]
- if dest:
- dest_dir = os.path.join(dest, branch_name)
- else:
- dest_dir = os.path.join(os.environ.get('CHARM_DIR'), "fetched",
- branch_name)
- try:
- self.clone(source, dest_dir, branch, depth)
- except CalledProcessError as e:
- raise UnhandledSource(e)
- except OSError as e:
- raise UnhandledSource(e.strerror)
- return dest_dir
diff --git a/charms/trusty/cassandra/hooks/cluster-relation-changed b/charms/trusty/cassandra/hooks/cluster-relation-changed
deleted file mode 100755
index 9128cab..0000000
--- a/charms/trusty/cassandra/hooks/cluster-relation-changed
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/python3
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-import hooks
-if __name__ == '__main__':
- hooks.bootstrap()
- hooks.default_hook()
diff --git a/charms/trusty/cassandra/hooks/cluster-relation-departed b/charms/trusty/cassandra/hooks/cluster-relation-departed
deleted file mode 100755
index 9128cab..0000000
--- a/charms/trusty/cassandra/hooks/cluster-relation-departed
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/python3
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-import hooks
-if __name__ == '__main__':
- hooks.bootstrap()
- hooks.default_hook()
diff --git a/charms/trusty/cassandra/hooks/config-changed b/charms/trusty/cassandra/hooks/config-changed
deleted file mode 100755
index 9128cab..0000000
--- a/charms/trusty/cassandra/hooks/config-changed
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/python3
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-import hooks
-if __name__ == '__main__':
- hooks.bootstrap()
- hooks.default_hook()
diff --git a/charms/trusty/cassandra/hooks/coordinator.py b/charms/trusty/cassandra/hooks/coordinator.py
deleted file mode 100644
index c353671..0000000
--- a/charms/trusty/cassandra/hooks/coordinator.py
+++ /dev/null
@@ -1,35 +0,0 @@
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-from charmhelpers.coordinator import BaseCoordinator
-
-
-class CassandraCoordinator(BaseCoordinator):
- def default_grant(self, lock, unit, granted, queue):
- '''Grant locks to only one unit at a time, regardless of its name.
-
- This lets us keep separate locks like repair and restart,
- while ensuring the operations do not occur on different nodes
- at the same time.
- '''
- # Return True if this unit has already been granted a lock.
- if self.grants.get(unit):
- return True
-
- # Otherwise, return True if the unit is first in the queue.
- return queue[0] == unit and not granted
-
-
-coordinator = CassandraCoordinator()
diff --git a/charms/trusty/cassandra/hooks/data-relation-changed b/charms/trusty/cassandra/hooks/data-relation-changed
deleted file mode 100755
index 9128cab..0000000
--- a/charms/trusty/cassandra/hooks/data-relation-changed
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/python3
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-import hooks
-if __name__ == '__main__':
- hooks.bootstrap()
- hooks.default_hook()
diff --git a/charms/trusty/cassandra/hooks/data-relation-departed b/charms/trusty/cassandra/hooks/data-relation-departed
deleted file mode 100755
index 9128cab..0000000
--- a/charms/trusty/cassandra/hooks/data-relation-departed
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/python3
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-import hooks
-if __name__ == '__main__':
- hooks.bootstrap()
- hooks.default_hook()
diff --git a/charms/trusty/cassandra/hooks/database-admin-relation-changed b/charms/trusty/cassandra/hooks/database-admin-relation-changed
deleted file mode 100755
index 9128cab..0000000
--- a/charms/trusty/cassandra/hooks/database-admin-relation-changed
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/python3
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-import hooks
-if __name__ == '__main__':
- hooks.bootstrap()
- hooks.default_hook()
diff --git a/charms/trusty/cassandra/hooks/database-relation-changed b/charms/trusty/cassandra/hooks/database-relation-changed
deleted file mode 100755
index 9128cab..0000000
--- a/charms/trusty/cassandra/hooks/database-relation-changed
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/python3
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-import hooks
-if __name__ == '__main__':
- hooks.bootstrap()
- hooks.default_hook()
diff --git a/charms/trusty/cassandra/hooks/definitions.py b/charms/trusty/cassandra/hooks/definitions.py
deleted file mode 100644
index 24f9497..0000000
--- a/charms/trusty/cassandra/hooks/definitions.py
+++ /dev/null
@@ -1,127 +0,0 @@
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-from charmhelpers.core import hookenv
-from charmhelpers.core import services
-
-import actions
-import helpers
-import relations
-
-
-def get_service_definitions():
- # This looks like it could be a module level global list, but
- # unfortunately that makes the module unimportable outside of a
- # hook context. The main culprit is RelationContext, which invokes
- # relation-get from its constructor. By wrapping the service
- # definition list in this function, we can defer constructing it
- # until we have constructed enough of a mock context and perform
- # basic tests.
- config = hookenv.config()
-
- return [
- # Prepare for the Cassandra service.
- dict(service='install',
- data_ready=[actions.set_proxy,
- actions.preinstall,
- actions.emit_meminfo,
- actions.revert_unchangeable_config,
- actions.store_unit_private_ip,
- actions.add_implicit_package_signing_keys,
- actions.configure_sources,
- actions.swapoff,
- actions.reset_sysctl,
- actions.reset_limits,
- actions.install_oracle_jre,
- actions.install_cassandra_packages,
- actions.emit_java_version,
- actions.ensure_cassandra_package_status],
- start=[], stop=[]),
-
- # Get Cassandra running.
- dict(service=helpers.get_cassandra_service(),
-
- # Open access to client and replication ports. Client
- # protocols require password authentication. Access to
- # the unauthenticated replication ports is protected via
- # ufw firewall rules. We do not open the JMX port, although
- # we could since it is similarly protected by ufw.
- ports=[config['rpc_port'], # Thrift clients
- config['native_transport_port'], # Native clients.
- config['storage_port'], # Plaintext replication
- config['ssl_storage_port']], # Encrypted replication.
-
- required_data=[relations.StorageRelation(),
- relations.PeerRelation()],
- provided_data=[relations.StorageRelation()],
- data_ready=[actions.configure_firewall,
- actions.update_etc_hosts,
- actions.maintain_seeds,
- actions.configure_cassandra_yaml,
- actions.configure_cassandra_env,
- actions.configure_cassandra_rackdc,
- actions.reset_all_io_schedulers,
- actions.maybe_restart,
- actions.request_unit_superuser,
- actions.reset_default_password],
- start=[services.open_ports],
- stop=[actions.stop_cassandra, services.close_ports]),
-
- # Actions that must be done while Cassandra is running.
- dict(service='post',
- required_data=[RequiresLiveNode()],
- data_ready=[actions.post_bootstrap,
- actions.create_unit_superusers,
- actions.reset_auth_keyspace_replication,
- actions.publish_database_relations,
- actions.publish_database_admin_relations,
- actions.install_maintenance_crontab,
- actions.nrpe_external_master_relation,
- actions.emit_cluster_info,
- actions.set_active],
- start=[], stop=[])]
-
-
-class RequiresLiveNode:
- def __bool__(self):
- is_live = self.is_live()
- hookenv.log('Requirement RequiresLiveNode: {}'.format(is_live),
- hookenv.DEBUG)
- return is_live
-
- def is_live(self):
- if helpers.is_decommissioned():
- hookenv.log('Node is decommissioned')
- return False
-
- if helpers.is_cassandra_running():
- hookenv.log('Cassandra is running')
- auth = hookenv.config()['authenticator']
- if auth == 'AllowAllAuthenticator':
- return True
- elif hookenv.local_unit() in helpers.get_unit_superusers():
- hookenv.log('Credentials created')
- return True
- else:
- hookenv.log('Credentials have not been created')
- return False
- else:
- hookenv.log('Cassandra is not running')
- return False
-
-
-def get_service_manager():
- return services.ServiceManager(get_service_definitions())
diff --git a/charms/trusty/cassandra/hooks/helpers.py b/charms/trusty/cassandra/hooks/helpers.py
deleted file mode 100644
index b86a6b1..0000000
--- a/charms/trusty/cassandra/hooks/helpers.py
+++ /dev/null
@@ -1,1084 +0,0 @@
-# Copyright 2015 Canonical Ltd.
-#
-# This file is part of the Cassandra Charm for Juju.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranties of
-# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
-# PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-import configparser
-from contextlib import contextmanager
-from datetime import timedelta
-from distutils.version import LooseVersion
-import errno
-from functools import wraps
-import io
-import json
-import os.path
-import re
-import shutil
-import subprocess
-import sys
-import tempfile
-from textwrap import dedent
-import time
-
-import bcrypt
-from cassandra import ConsistencyLevel
-import cassandra.auth
-import cassandra.cluster
-import cassandra.query
-import yaml
-
-from charmhelpers.core import hookenv, host
-from charmhelpers.core.hookenv import DEBUG, ERROR, WARNING
-from charmhelpers import fetch
-
-from coordinator import coordinator
-
-
-RESTART_TIMEOUT = 600
-
-
-def logged(func):
- @wraps(func)
- def wrapper(*args, **kw):
- hookenv.log("* Helper {}/{}".format(hookenv.hook_name(),
- func.__name__))
- return func(*args, **kw)
- return wrapper
-
-
-def backoff(what_for, max_pause=60):
- i = 0
- while True:
- yield True
- i += 1
- pause = min(max_pause, 2 ** i)
- time.sleep(pause)
- if pause > 10:
- hookenv.log('Recheck {} for {}'.format(i, what_for))
-
-
-# FOR CHARMHELPERS
-@contextmanager
-def autostart_disabled(services=None, _policy_rc='/usr/sbin/policy-rc.d'):
- '''Tell well behaved Debian packages to not start services when installed.
- '''
- script = ['#!/bin/sh']
- if services is not None:
- for service in services:
- script.append(
- 'if [ "$1" = "{}" ]; then exit 101; fi'.format(service))
- script.append('exit 0')
- else:
- script.append('exit 101') # By default, all daemons disabled.
- try:
- if os.path.exists(_policy_rc):
- shutil.move(_policy_rc, "{}-orig".format(_policy_rc))
- host.write_file(_policy_rc, '\n'.join(script).encode('ASCII'),
- perms=0o555)
- yield
- finally:
- os.unlink(_policy_rc)
- if os.path.exists("{}-orig".format(_policy_rc)):
- shutil.move("{}-orig".format(_policy_rc), _policy_rc)
-
-
-# FOR CHARMHELPERS
-@logged
-def install_packages(packages):
- packages = list(packages)
- if hookenv.config('extra_packages'):
- packages.extend(hookenv.config('extra_packages').split())
- packages = fetch.filter_installed_packages(packages)
- if packages:
- # The DSE packages are huge, so this might take some time.