Puppet module to deploy Redis bundle for HA

This module is used by tripleo-heat-templates to configure and deploy
Kolla-based Redis containers managed by pacemaker.

We use short-lived containers that call pcs via puppet to create
the needed pacemaker resources, properties and constraints.

Co-Authored-By: Michele Baldesari <michele@acksyn.org>
Partial-Bug: #1692924

Depends-On: I44fbd7f89ab22b72e8d3fc0a0e3fe54a9418a60f
Depends-On: Ie9b7e7d2a3cec4b121915a17c1e809e4ec950e7f

Change-Id: Ia1131611d15670190b7b6654f72e6290bf7f8b9e

1 files changed, 178 insertions, 0 deletions

diff --git a/manifests/profile/pacemaker/database/redis_bundle.pp b/manifests/profile/pacemaker/database/redis_bundle.pp
new file mode 100644
index 0000000..167e54a
--- /dev/null
+++ b/manifests/profile/pacemaker/database/redis_bundle.pp
@@ -0,0 +1,178 @@
+# Copyright 2017 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# == Class: tripleo::profile::pacemaker::database::redis_bundle
+#
+# Containerized Redis Pacemaker HA profile for tripleo
+#
+# === Parameters
+#
+# [*redis_docker_image*]
+#   (Optional) The docker image to use for creating the pacemaker bundle
+#   Defaults to hiera('tripleo::profile::pacemaker::redis_bundle::redis_docker_image', undef)
+#
+# [*redis_docker_control_port*]
+#   (Optional) The bundle's pacemaker_remote control port on the host
+#   Defaults to hiera('tripleo::profile::pacemaker::redis_bundle::control_port', '3121')
+#
+# [*pcs_tries*]
+#   (Optional) The number of times pcs commands should be retried.
+#   Defaults to hiera('pcs_tries', 20)
+#
+# [*bootstrap_node*]
+#   (Optional) The hostname of the node responsible for bootstrapping tasks
+#   Defaults to hiera('redis_short_bootstrap_node_name')
+#
+# [*step*]
+#   (Optional) The current step in deployment. See tripleo-heat-templates
+#   for more details.
+#   Defaults to hiera('step')
+#
+#
+class tripleo::profile::pacemaker::database::redis_bundle (
+  $bootstrap_node            = hiera('redis_short_bootstrap_node_name'),
+  $redis_docker_image        = hiera('tripleo::profile::pacemaker::database::redis_bundle::redis_docker_image', undef),
+  $redis_docker_control_port = hiera('tripleo::profile::pacemaker::database::redis_bundle::control_port', '3124'),
+  $pcs_tries                 = hiera('pcs_tries', 20),
+  $step                      = hiera('step'),
+) {
+  if $::hostname == downcase($bootstrap_node) {
+    $pacemaker_master = true
+  } else {
+    $pacemaker_master = false
+  }
+
+  include ::tripleo::profile::base::database::redis
+
+  if $step >= 2 {
+    if $pacemaker_master {
+      $redis_short_node_names = hiera('redis_short_node_names')
+      $redis_nodes_count = count($redis_short_node_names)
+      $redis_short_node_names.each |String $node_name| {
+        pacemaker::property { "redis-role-${node_name}":
+          property => 'redis-role',
+          value    => true,
+          tries    => $pcs_tries,
+          node     => $node_name,
+          before   => Pacemaker::Resource::Bundle['redis-bundle'],
+        }
+      }
+
+      pacemaker::resource::bundle { 'redis-bundle':
+        image             => $redis_docker_image,
+        replicas          => $redis_nodes_count,
+        masters           => 1,
+        container_options => 'network=host',
+        options           => '--user=root --log-driver=journald -e KOLLA_CONFIG_STRATEGY=COPY_ALWAYS',
+        run_command       => '/bin/bash /usr/local/bin/kolla_start',
+        network           => "control-port=${redis_docker_control_port}",
+        storage_maps      => {
+          'redis-cfg-files'                  => {
+            'source-dir' => '/var/lib/kolla/config_files/redis.json',
+            'target-dir' => '/var/lib/kolla/config_files/config.json',
+            'options'    => 'ro',
+          },
+          'redis-cfg-data-redis'             => {
+            'source-dir' => '/var/lib/config-data/redis/etc/redis',
+            'target-dir' => '/etc/redis',
+            'options'    => 'ro',
+          },
+          'redis-cfg-data-redis-conf'        => {
+            'source-dir' => '/var/lib/config-data/redis/etc/redis.conf',
+            'target-dir' => '/etc/redis.conf',
+            'options'    => 'ro',
+          },
+          'redis-cfg-data-redis-conf-puppet' => {
+            'source-dir' => '/var/lib/config-data/redis/etc/redis.conf.puppet',
+            'target-dir' => '/etc/redis.conf.puppet',
+            'options'    => 'ro',
+          },
+          'redis-cfg-data-redis-sentinel'    => {
+            'source-dir' => '/var/lib/config-data/redis/etc/redis-sentinel.conf',
+            'target-dir' => '/etc/redis-sentinel.conf',
+            'options'    => 'ro',
+          },
+          'redis-hosts'                      => {
+            'source-dir' => '/etc/hosts',
+            'target-dir' => '/etc/hosts',
+            'options'    => 'ro',
+          },
+          'redis-localtime'                  => {
+            'source-dir' => '/etc/localtime',
+            'target-dir' => '/etc/localtime',
+            'options'    => 'ro',
+          },
+          'redis-lib'                        => {
+            'source-dir' => '/var/lib/redis',
+            'target-dir' => '/var/lib/redis',
+            'options'    => 'rw',
+          },
+          'redis-log'                        => {
+            'source-dir' => '/var/log/redis',
+            'target-dir' => '/var/log/redis',
+            'options'    => 'rw',
+          },
+          'redis-run'                        => {
+            'source-dir' => '/var/run/redis',
+            'target-dir' => '/var/run/redis',
+            'options'    => 'rw',
+          },
+          'redis-pki-extracted'              => {
+            'source-dir' => '/etc/pki/ca-trust/extracted',
+            'target-dir' => '/etc/pki/ca-trust/extracted',
+            'options'    => 'ro',
+          },
+          'redis-pki-ca-bundle-crt'          => {
+            'source-dir' => '/etc/pki/tls/certs/ca-bundle.crt',
+            'target-dir' => '/etc/pki/tls/certs/ca-bundle.crt',
+            'options'    => 'ro',
+          },
+          'redis-pki-ca-bundle-trust-crt'    => {
+            'source-dir' => '/etc/pki/tls/certs/ca-bundle.trust.crt',
+            'target-dir' => '/etc/pki/tls/certs/ca-bundle.trust.crt',
+            'options'    => 'ro',
+          },
+          'redis-pki-cert'                   => {
+            'source-dir' => '/etc/pki/tls/cert.pem',
+            'target-dir' => '/etc/pki/tls/cert.pem',
+            'options'    => 'ro',
+          },
+          'redis-dev-log'                    => {
+            'source-dir' => '/dev/log',
+            'target-dir' => '/dev/log',
+            'options'    => 'rw',
+          },
+        },
+      }
+
+      pacemaker::resource::ocf { 'redis':
+        ocf_agent_name  => 'heartbeat:redis',
+        resource_params => 'wait_last_known_master=true',
+        master_params   => '',
+        meta_params     => 'notify=true ordered=true interleave=true',
+        op_params       => 'start timeout=200s stop timeout=200s',
+        tries           => $pcs_tries,
+        location_rule   => {
+          resource_discovery => 'exclusive',
+          score              => 0,
+          expression         => ['redis-role eq true'],
+        },
+        bundle          => 'redis-bundle',
+        require         => [Class['::redis'],
+                            Pacemaker::Resource::Bundle['redis-bundle']],
+      }
+
+    }
+  }
+}