.. This work is licensed under a Creative Commons Attribution 4.0 International
.. License.
.. http://creativecommons.org/licenses/by/4.0
.. (c) OPNFV, Huawei Technologies Co.,Ltd and others.

*************************************
Yardstick Test Case Description TC025
*************************************

+-----------------------------------------------------------------------------+
|OpenStack Controller Node abnormally shutdown High Availability              |
|                                                                             |
+--------------+--------------------------------------------------------------+
|test case id  | OPNFV_YARDSTICK_TC025_HA: OpenStack Controller Node          |
|              | abnormally shutdown                                          |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|test purpose  | This test case will verify the high availability of          |
|              | controller node. When one of the controller node abnormally  |
|              | shutdown, the service provided by it should be OK.           |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|test method   | This test case shutdowns a specified controller node with    |
|              | some fault injection tools, then checks whether all services |
|              | provided by the controller node are OK with some monitor     |
|              | tools.                                                       |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|attackers     | In this test case, an attacker called "host-shutdown" is     |
|              | needed. This attacker includes two parameters:               |
|              | 1) fault_type: which is used for finding the attacker's      |
|              | scripts. It should be always set to "host-shutdown" in       |
|              | this test case.                                              |
|              | 2) host: the name of a controller node being attacked.       |
|              |                                                              |
|              | e.g.                                                         |
|              | -fault_type: "host-shutdown"                                 |
|              | -host: node1                                                 |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|monitors      | In this test case, one kind of monitor are needed:           |
|              | 1. the "openstack-cmd" monitor constantly request a specific |
|              |    Openstack command, which needs two parameters             |
|              | 1) monitor_type: which is used for finding the monitor class |
|              | and related scritps. It should be always set to              |
|              | "openstack-cmd" for this monitor.                            |
|              | 2) command_name: which is the command name used for request  |
|              |                                                              |
|              | There are four instance of the "openstack-cmd" monitor:      |
|              | monitor1:                                                    |
|              | -monitor_type: "openstack-cmd"                               |
|              | -api_name: "nova image-list"                                 |
|              | monitor2:                                                    |
|              | -monitor_type: "openstack-cmd"                               |
|              | -api_name: "neutron router-list"                             |
|              | monitor3:                                                    |
|              | -monitor_type: "openstack-cmd"                               |
|              | -api_name: "heat stack-list"                                 |
|              | monitor4:                                                    |
|              | -monitor_type: "openstack-cmd"                               |
|              | -api_name: "cinder list"                                     |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|metrics       | In this test case, there is one metric:                      |
|              | 1)service_outage_time: which indicates the maximum outage    |
|              | time (seconds) of the specified Openstack command request.   |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|test tool     | Developed by the project. Please see folder:                 |
|              | "yardstick/benchmark/scenarios/availability/ha_tools"        |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|references    | ETSI NFV REL001                                              |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|configuration | This test case needs two configuration files:                |
|              | 1) test case file: opnfv_yardstick_tc019.yaml                |
|              | -Attackers: see above "attackers" discription                |
|              | -waiting_time: which is the time (seconds) from the process  |
|              | being killed to stoping monitors the monitors                |
|              | -Monitors: see above "monitors" discription                  |
|              | -SLA: see above "metrics" discription                        |
|              |                                                              |
|              | 2)POD file: pod.yaml                                         |
|              | The POD configuration should record on pod.yaml first.       |
|              | the "host" item in this test case will use the node name in  |
|              | the pod.yaml.                                                |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|test sequence | description and expected result                              |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|step 1        | start monitors:                                              |
|              | each monitor will run with independently process             |
|              |                                                              |
|              | Result: The monitor info will be collected.                  |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|step 2        | do attacker: connect the host through SSH, and then execute  |
|              | shutdown script on the host                                  |
|              |                                                              |
|              | Result: The host will be shutdown.                           |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|step 3        | stop monitors after a period of time specified by            |
|              | "waiting_time"                                               |
|              |                                                              |
|              | Result: All monitor result will be aggregated.               |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|step 4        | verify the SLA                                               |
|              |                                                              |
|              | Result: The test case is passed or not.                      |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|post-action   | It is the action when the test cases exist. It restarts the  |
|              | specified controller node if it is not restarted.            |
|              |                                                              |
+--------------+--------------------------------------------------------------+
|test verdict  | Fails only if SLA is not passed, or if there is a test case  |
|              | execution problem.                                           |
|              |                                                              |
+--------------+--------------------------------------------------------------+