.. This work is licensed under a Creative Commons Attribution 4.0 International .. License. .. http://creativecommons.org/licenses/by/4.0 .. (c) OPNFV, Intel, Ericsson AB, Huawei Technologies Co. Ltd and others. .. Convention for heading levels in Yardstick: ======= Heading 0 (reserved for the title in a document) ------- Heading 1 ^^^^^^^ Heading 2 +++++++ Heading 3 ''''''' Heading 4 Avoid deeper levels because they do not render well. =============== Yardstick Usage =============== Once you have yardstick installed, you can start using it to run testcases immediately, through the CLI. You can also define and run new testcases and test suites. This chapter details basic usage (running testcases), as well as more advanced usage (creating your own testcases). Yardstick common CLI -------------------- List test cases ^^^^^^^^^^^^^^^ ``yardstick testcase list``: This command line would list all test cases in Yardstick. It would show like below:: +--------------------------------------------------------------------------------------- | Testcase Name | Description +--------------------------------------------------------------------------------------- | opnfv_yardstick_tc001 | Measure network throughput using pktgen | opnfv_yardstick_tc002 | measure network latency using ping | opnfv_yardstick_tc005 | Measure Storage IOPS, throughput and latency using fio. ... +--------------------------------------------------------------------------------------- Show a test case config file ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Take opnfv_yardstick_tc002 for an example. This test case measure network latency. You just need to type in ``yardstick testcase show opnfv_yardstick_tc002``, and the console would show the config yaml of this test case: .. literalinclude:: ../../../../tests/opnfv/test_cases/opnfv_yardstick_tc002.yaml :lines: 9- Run a Yardstick test case ^^^^^^^^^^^^^^^^^^^^^^^^^ If you want run a test case, then you need to use ``yardstick task start <test_case_path>`` this command support some parameters as below: +---------------------+--------------------------------------------------+ | Parameters | Detail | +=====================+==================================================+ | -d | show debug log of yardstick running | | | | +---------------------+--------------------------------------------------+ | --task-args | If you want to customize test case parameters, | | | use "--task-args" to pass the value. The format | | | is a json string with parameter key-value pair. | | | | +---------------------+--------------------------------------------------+ | --task-args-file | If you want to use yardstick | | | env prepare command(or | | | related API) to load the | +---------------------+--------------------------------------------------+ | --parse-only | | | | | | | | +---------------------+--------------------------------------------------+ | --output-file \ | Specify where to output the log. if not pass, | | OUTPUT_FILE_PATH | the default value is | | | "/tmp/yardstick/yardstick.log" | | | | +---------------------+--------------------------------------------------+ | --suite \ | run a test suite, TEST_SUITE_PATH specify where | | TEST_SUITE_PATH | the test suite locates | | | | +---------------------+--------------------------------------------------+ Run Yardstick in a local environment ------------------------------------ We also have a guide about `How to run Yardstick in a local environment`_. This work is contributed by Tapio Tallgren. Create a new testcase for Yardstick ----------------------------------- As a user, you may want to define a new testcase in addition to the ones already available in Yardstick. This section will show you how to do this. Each testcase consists of two sections: * ``scenarios`` describes what will be done by the test * ``context`` describes the environment in which the test will be run. Defining the testcase scenarios ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ TODO Defining the testcase context(s) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Each testcase consists of one or more contexts, which describe the environment in which the testcase will be run. Current available contexts are: * ``Dummy``: this is a no-op context, and is used when there is no environment to set up e.g. when testing whether OpenStack services are available * ``Node``: this context is used to perform operations on baremetal servers * ``Heat``: uses OpenStack to provision the required hosts, networks, etc. * ``Kubernetes``: uses Kubernetes to provision the resources required for the test. Regardless of the context type, the ``context`` section of the testcase will consist of the following:: context: name: demo type: Dummy|Node|Heat|Kubernetes The content of the ``context`` section will vary based on the context type. Dummy Context +++++++++++++ No additional information is required for the Dummy context:: context: name: my_context type: Dummy Node Context ++++++++++++ TODO Heat Context ++++++++++++ In addition to ``name`` and ``type``, a Heat context requires the following arguments: * ``image``: the image to be used to boot VMs * ``flavor``: the flavor to be used for VMs in the context * ``user``: the username for connecting into the VMs * ``networks``: The networks to be created, networks are identified by name * ``name``: network name (required) * (TODO) Any optional attributes * ``servers``: The servers to be created * ``name``: server name * (TODO) Any optional attributes In addition to the required arguments, the following optional arguments can be passed to the Heat context: * ``placement_groups``: * ``name``: the name of the placement group to be created * ``policy``: either ``affinity`` or ``availability`` * ``server_groups``: * ``name``: the name of the server group * ``policy``: either ``affinity`` or ``anti-affinity`` Combining these elements together, a sample Heat context config looks like: .. literalinclude:: ../../../../yardstick/tests/integration/dummy-scenario-heat-context.yaml :start-after: --- :empahsise-lines: 14- Using exisiting HOT Templates ''''''''''''''''''''''''''''' TODO Kubernetes Context ++++++++++++++++++ TODO Using multiple contexts in a testcase +++++++++++++++++++++++++++++++++++++ When using multiple contexts in a testcase, the ``context`` section is replaced by a ``contexts`` section, and each context is separated with a ``-`` line:: contexts: - name: context1 type: Heat ... - name: context2 type: Node ... Reusing a context +++++++++++++++++ Typically, a context is torn down after a testcase is run, however, the user may wish to keep an context intact after a testcase is complete. .. note:: This feature has been implemented for the Heat context only To keep or reuse a context, the ``flags`` option must be specified: * ``no_setup``: skip the deploy stage, and fetch the details of a deployed context/Heat stack. * ``no_teardown``: skip the undeploy stage, thus keeping the stack intact for the next test If either of these ``flags`` are ``True``, the context information must still be given. By default, these flags are disabled:: context: name: mycontext type: Heat flags: no_setup: True no_teardown: True ... Create a test suite for Yardstick --------------------------------- A test suite in Yardstick is a .yaml file which includes one or more test cases. Yardstick is able to support running test suite task, so you can customize your own test suite and run it in one task. ``tests/opnfv/test_suites`` is the folder where Yardstick puts CI test suite. A typical test suite is like below (the ``fuel_test_suite.yaml`` example): .. literalinclude:: ../../../../tests/opnfv/test_suites/fuel_test_suite.yaml :lines: 9- As you can see, there are two test cases in the ``fuel_test_suite.yaml``. The ``schema`` and the ``name`` must be specified. The test cases should be listed via the tag ``test_cases`` and their relative path is also marked via the tag ``test_cases_dir``. Yardstick test suite also supports constraints and task args for each test case. Here is another sample (the ``os-nosdn-nofeature-ha.yaml`` example) to show this, which is digested from one big test suite:: --- 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 to specify which installer or pod it can be run in the CI environment. ``task_args`` is to specify the task arguments for each pod. All in all, to create a test suite in Yardstick, you just need to create a yaml file and add test cases, constraint or task arguments if necessary. References ---------- .. _`How to run Yardstick in a local environment`: https://wiki.opnfv.org/display/yardstick/How+to+run+Yardstick+in+a+local+environment