Update yardstick framework architecture in userguide

JIRA: YARDSTICK-590

This patch update the yardstick framework architecture in the userguide,
also fix some rst grammar mistakes

Change-Id: I84e7c24b4cd936a01f4c191e9f530f15f9f711de
Signed-off-by: JingLu5 <lvjing5@huawei.com>
(cherry picked from commit 7150e6bc49098937edcac0fa9fa108329c74af4a)

1 files changed, 500 insertions, 0 deletions

diff --git a/docs/testing/user/userguide/04-installation.rst b/docs/testing/user/userguide/04-installation.rst
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+.. This work is licensed under a Creative Commons Attribution 4.0 International
+.. License.
+.. http://creativecommons.org/licenses/by/4.0
+.. (c) OPNFV, Ericsson AB, Huawei Technologies Co.,Ltd and others.
+
+Yardstick Installation
+======================
+
+
+Abstract
+--------
+
+Yardstick supports installation by Docker or directly in Ubuntu. The
+installation procedure for Docker and direct installation are detailed in
+the section below.
+
+To use Yardstick you should have access to an OpenStack environment, with at
+least Nova, Neutron, Glance, Keystone and Heat installed.
+
+The steps needed to run Yardstick are:
+
+1. Install Yardstick.
+2. Load OpenStack environment variables.
+3. Create a Neutron external network.
+4. Build Yardstick flavor and a guest image.
+5. Load the guest image into the OpenStack environment.
+6. Create the test configuration .yaml file.
+7. Run the test case.
+
+
+Prerequisites
+-------------
+
+The OPNFV deployment is out of the scope of this document but it can be
+found in http://artifacts.opnfv.org/opnfvdocs/colorado/docs/configguide/index.html.
+The OPNFV platform is considered as the System Under Test (SUT) in this
+document.
+
+Several prerequisites are needed for Yardstick:
+
+    #. A Jumphost to run Yardstick on
+    #. A Docker daemon shall be installed on the Jumphost
+    #. A public/external network created on the SUT
+    #. Connectivity from the Jumphost to the SUT public/external network
+
+WARNING: Connectivity from Jumphost is essential and it is of paramount
+importance to make sure it is working before even considering to install
+and run Yardstick. Make also sure you understand how your networking is
+designed to work.
+
+NOTE: **Jumphost** refers to any server which meets the previous
+requirements. Normally it is the same server from where the OPNFV
+deployment has been triggered previously.
+
+NOTE: If your Jumphost is operating behind a company http proxy and/or
+Firewall, please consult first the section `Proxy Support`_, towards
+the end of this document. The section details some tips/tricks which
+*may* be of help in a proxified environment.
+
+
+Installing Yardstick using Docker
+---------------------------------
+
+Yardstick has a Docker image,
+**It is recommended to use this Docker image to run Yardstick test**.
+
+Pulling the Yardstick Docker image
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. _dockerhub: https://hub.docker.com/r/opnfv/yardstick/
+
+Pull the Yardstick Docker image (**opnfv/yardstick**) from the public dockerhub
+registry under the OPNFV account: [dockerhub_], with the following docker
+command::
+
+  docker pull opnfv/yardstick:stable
+
+After pulling the Docker image, check that it is available with the
+following docker command::
+
+  [yardsticker@jumphost ~]$ docker images
+  REPOSITORY         TAG       IMAGE ID        CREATED      SIZE
+  opnfv/yardstick    stable    a4501714757a    1 day ago    915.4 MB
+
+Run the Docker image to get a Yardstick container
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+::
+
+  docker run -itd --privileged -v /var/run/docker.sock:/var/run/docker.sock -p 8888:5000 -e INSTALLER_IP=192.168.200.2 -e INSTALLER_TYPE=compass --name yardstick opnfv/yardstick:stable
+
+note:
+
++----------------------------------------------+------------------------------+
+| parameters                                   | Detail                       |
++==============================================+==============================+
+| -itd                                         | -i: interactive, Keep STDIN  |
+|                                              | open even if not attached.   |
+|                                              | -t: allocate a pseudo-TTY.   |
+|                                              | -d: run container in         |
+|                                              | detached mode, in the        |
+|                                              | background.                  |
++----------------------------------------------+------------------------------+
+| --privileged                                 | If you want to build         |
+|                                              | yardstick-image in yardstick |
+|                                              | container, this parameter is |
+|                                              | needed.                      |
++----------------------------------------------+------------------------------+
+| -e INSTALLER_IP=192.168.200.2                | If you want to use yardstick |
+|                                              | env prepare command(or       |
+| -e INSTALLER_TYPE=compass                    | related API) to load the     |
+|                                              | images that yardstick needs, |
+|                                              | these parameters should be   |
+|                                              | provided.                    |
+|                                              | The INSTALLER_IP and         |
+|                                              | INSTALLER_TYPE are depending |
+|                                              | on your OpenStack installer, |
+|                                              | currently apex, compass,     |
+|                                              | fuel and joid are supported. |
+|                                              | If you use other installers, |
+|                                              | such as devstack, these      |
+|                                              | parameters can be ignores.   |
++----------------------------------------------+------------------------------+
+| -p 8888:5000                                 | If you want to call          |
+|                                              | yardstick API out of         |
+|                                              | yardstick container, this    |
+|                                              | parameter is needed.         |
++----------------------------------------------+------------------------------+
+| -v /var/run/docker.sock:/var/run/docker.sock | If you want to use yardstick |
+|                                              | env grafana/influxdb to      |
+|                                              | create a grafana/influxdb    |
+|                                              | container out of yardstick   |
+|                                              | container, this parameter is |
+|                                              | needed.                      |
++----------------------------------------------+------------------------------+
+| --name yardstick                             | The name for this container, |
+|                                              | not needed and can be        |
+|                                              | defined by the user.         |
++----------------------------------------------+------------------------------+
+
+Enter Yardstick container
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+::
+
+  docker exec -it yardstick /bin/bash
+
+In the container, the Yardstick repository is located in the /home/opnfv/repos
+directory.
+
+In Danube release, we have improved the Yardstick installation steps.
+Now Yardstick provides a CLI to prepare openstack environment variables and
+load yardstick images::
+
+  yardstick env prepare
+
+If you ues this command. you can skip the following sections about how to
+prepare openstack environment variables, load yardstick images and load
+yardstick flavor manually.
+
+
+Installing Yardstick directly in Ubuntu
+---------------------------------------
+
+.. _install-framework:
+
+Alternatively you can install Yardstick framework directly in Ubuntu or in an Ubuntu Docker
+image. No matter which way you choose to install Yardstick framework, the
+following installation steps are identical.
+
+If you choose to use the Ubuntu Docker image, You can pull the Ubuntu
+Docker image from Docker hub:
+
+::
+
+  docker pull ubuntu:16.04
+
+
+Installing Yardstick framework
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Download source code and install Yardstick framework:
+
+::
+
+  git clone https://gerrit.opnfv.org/gerrit/yardstick
+  cd yardstick
+  ./install.sh
+
+For installing yardstick directly in Ubuntu, the **yardstick env command** is not available.
+You need to prepare openstack environment variables, load yardstick images and load
+yardstick flavor manually.
+
+
+OpenStack parameters and credentials
+------------------------------------
+
+Environment variables
+^^^^^^^^^^^^^^^^^^^^^
+Before running Yardstick it is necessary to export OpenStack environment variables
+from the OpenStack *openrc* file (using the ``source`` command) and export the
+external network name ``export EXTERNAL_NETWORK="external-network-name"``,
+the default name for the external network is ``net04_ext``.
+
+Credential environment variables in the *openrc* file have to include at least:
+
+* OS_AUTH_URL
+* OS_USERNAME
+* OS_PASSWORD
+* OS_TENANT_NAME
+
+A sample openrc file may look like this:
+
+* export OS_PASSWORD=console
+* export OS_TENANT_NAME=admin
+* export OS_AUTH_URL=http://172.16.1.222:35357/v2.0
+* export OS_USERNAME=admin
+* export OS_VOLUME_API_VERSION=2
+* export EXTERNAL_NETWORK=net04_ext
+
+
+Yardstick falvor and guest images
+---------------------------------
+
+Before executing Yardstick test cases, make sure that yardstick guest image and
+yardstick flavor are available in OpenStack.
+Detailed steps about creating yardstick flavor and building yardstick-trusty-server
+image can be found below.
+
+Yardstick-flavor
+^^^^^^^^^^^^^^^^
+Most of the sample test cases in Yardstick are using an OpenStack flavor called
+*yardstick-flavor* which deviates from the OpenStack standard m1.tiny flavor by the
+disk size - instead of 1GB it has 3GB. Other parameters are the same as in m1.tiny.
+
+Create yardstick-flavor:
+
+::
+
+  nova flavor-create yardstick-flavor 100 512 3 1
+
+
+.. _guest-image:
+
+Building a guest image
+^^^^^^^^^^^^^^^^^^^^^^
+Most of the sample test cases in Yardstick are using a guest image called
+*yardstick-trusty-server* which deviates from an Ubuntu Cloud Server image
+containing all the required tools to run test cases supported by Yardstick.
+Yardstick has a tool for building this custom image. It is necessary to have
+sudo rights to use this tool.
+
+Also you may need install several additional packages to use this tool, by
+follwing the commands below:
+
+::
+
+  apt-get update && apt-get install -y \
+      qemu-utils \
+      kpartx
+
+This image can be built using the following command while in the directory where
+Yardstick is installed (``~/yardstick`` if the framework is installed
+by following the commands above):
+
+::
+
+  sudo ./tools/yardstick-img-modify tools/ubuntu-server-cloudimg-modify.sh
+
+**Warning:** the script will create files by default in:
+``/tmp/workspace/yardstick`` and the files will be owned by root!
+
+If you are building this guest image in inside a docker container make sure the
+container is granted with privilege.
+
+The created image can be added to OpenStack using the ``glance image-create`` or
+via the OpenStack Dashboard.
+
+Example command:
+
+::
+
+  glance --os-image-api-version 1 image-create \
+  --name yardstick-image --is-public true \
+  --disk-format qcow2 --container-format bare \
+  --file /tmp/workspace/yardstick/yardstick-image.img
+
+Some Yardstick test cases use a Cirros image and a Ubuntu 14.04 image, you can find one at
+http://download.cirros-cloud.net/0.3.3/cirros-0.3.3-x86_64-disk.img, https://cloud-images.ubuntu.com/trusty/current/trusty-server-cloudimg-amd64-disk1.img
+
+Add cirros and ubuntu image to OpenStack:
+
+::
+
+  openstack image create \
+      --disk-format qcow2 \
+      --container-format bare \
+      --file $cirros_image_file \
+      cirros-0.3.3
+
+  openstack image create \
+      --disk-format qcow2 \
+      --container-format bare \
+      --file $ubuntu_image_file \
+      Ubuntu-14.04
+
+Automatic flavor and image creation
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Yardstick has a script for automatic creating yardstick flavor and building
+guest images. This script is mainly used in CI, but you can still use it in
+your local environment.
+
+Example command:
+
+::
+
+  source $YARDSTICK_REPO_DIR/tests/ci/load_images.sh
+
+
+Examples and verifying the install
+----------------------------------
+
+It is recommended to verify that Yardstick was installed successfully
+by executing some simple commands and test samples. Before executing yardstick
+test cases make sure yardstick flavor and building yardstick-trusty-server
+image can be found in glance and openrc file is sourced. Below is an example
+invocation of yardstick help command and ping.py test sample:
+::
+
+  yardstick -h
+  yardstick task start samples/ping.yaml
+
+Each testing tool supported by Yardstick has a sample configuration file.
+These configuration files can be found in the **samples** directory.
+
+Default location for the output is ``/tmp/yardstick.out``.
+
+
+Deploy InfluxDB and Grafana locally
+------------------------------------
+
+The 'yardstick env' command can also help you to build influxDB and Grafana in
+your local environment.
+
+Create InfluxDB container and config with the following command::
+
+  yardstick env influxdb
+
+
+Create Grafana container and config::
+
+  yardstick env grafana
+
+Then you can run a test case and visit http://host_ip:3000(user:admin,passwd:admin) to see the results.
+
+note: Using **yardstick env** command to deploy InfluxDB and Grafana requires
+Jump Server's docker API version => 1.24. You can use the following command to
+check the docker API version:
+
+::
+
+  docker version
+
+The following sections describe how to deploy influxDB and Grafana manually.
+
+.. pull docker images
+
+Pull docker images
+
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+::
+
+  docker pull tutum/influxdb
+  docker pull grafana/grafana
+
+Run influxdb and config
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Run influxdb
+::
+
+  docker run -d --name influxdb \
+  -p 8083:8083 -p 8086:8086 --expose 8090 --expose 8099 \
+  tutum/influxdb
+  docker exec -it influxdb bash
+
+Config influxdb
+::
+
+  influx
+  >CREATE USER root WITH PASSWORD 'root' WITH ALL PRIVILEGES
+  >CREATE DATABASE yardstick;
+  >use yardstick;
+  >show MEASUREMENTS;
+
+Run grafana and config
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Run grafana
+::
+
+  docker run -d --name grafana -p 3000:3000 grafana/grafana
+
+Config grafana
+::
+
+  http://{YOUR_IP_HERE}:3000
+  log on using admin/admin and config database resource to be {YOUR_IP_HERE}:8086
+
+.. image:: images/Grafana_config.png
+   :width: 800px
+   :alt: Grafana data source configration
+
+Config yardstick conf
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+cp ./etc/yardstick/yardstick.conf.sample /etc/yardstick/yardstick.conf
+
+vi /etc/yardstick/yardstick.conf
+Config yardstick.conf
+::
+
+  [DEFAULT]
+  debug = True
+  dispatcher = influxdb
+
+  [dispatcher_influxdb]
+  timeout = 5
+  target = http://{YOUR_IP_HERE}:8086
+  db_name = yardstick
+  username = root
+  password = root
+
+Now you can run yardstick test cases and store the results in influxdb
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+
+Create a test suite for yardstick
+------------------------------------
+
+A test suite in yardstick is a yaml file which include one or more test cases.
+Yardstick is able to support running test suite task, so you can customize you
+own test suite and run it in one task.
+
+"tests/opnfv/test_suites" is where yardstick put ci test-suite. A typical test
+suite is like below:
+
+fuel_test_suite.yaml
+
+::
+
+  ---
+  # Fuel integration test task suite
+
+  schema: "yardstick:suite:0.1"
+
+  name: "fuel_test_suite"
+  test_cases_dir: "samples/"
+  test_cases:
+  -
+    file_name: ping.yaml
+  -
+    file_name: iperf3.yaml
+
+As you can see, there are two test cases in fuel_test_suite, the syntax is simple
+here, you must specify the schema and the name, then you just need to list the
+test cases in the tag "test_cases" and also mark their relative directory in the
+tag "test_cases_dir".
+
+Yardstick test suite also support constraints and task args for each test case.
+Here is another sample to show this, which is digested from one big test suite.
+
+os-nosdn-nofeature-ha.yaml
+
+::
+
+ ---
+
+ schema: "yardstick:suite:0.1"
+
+ name: "os-nosdn-nofeature-ha"
+ test_cases_dir: "tests/opnfv/test_cases/"
+ test_cases:
+ -
+     file_name: opnfv_yardstick_tc002.yaml
+ -
+     file_name: opnfv_yardstick_tc005.yaml
+ -
+     file_name: opnfv_yardstick_tc043.yaml
+        constraint:
+           installer: compass
+           pod: huawei-pod1
+        task_args:
+           huawei-pod1: '{"pod_info": "etc/yardstick/.../pod.yaml",
+           "host": "node4.LF","target": "node5.LF"}'
+
+As you can see in test case "opnfv_yardstick_tc043.yaml", there are two tags, "constraint" and
+"task_args". "constraint" is where you can specify which installer or pod it can be run in
+the ci environment. "task_args" is where you can specify the task arguments for each pod.
+
+All in all, to create a test suite in yardstick, you just need to create a suite yaml file
+and add test cases and constraint or task arguments if necessary.