The tempest config group name is compute-feature-enabled the python code needs to use CONF.compute_feature_enabled to access that group. But the test skipping message should point to the group config name instead of the python variable name to avoid confusion Change-Id: I5b852d9f8dbb9392329d82c70a1686f96628a5e8
Whitebox Tempest plugin
This is a Tempest plugin for whitebox testing. While Tempest's scope is limited to only the REST APIs, whitebox allows tests to peak behind the curtain, similar to how a cloud admin might. Examining things on the compute host(s) and/or the controller(s) is not only allowed, it's required for a test to be in whitebox's scope. Whitebox tests must still be REST API-driven, however their assertions can involve things like the instance XML (if the Nova libvirt driver is in use) or the database.
- Bugs: https://storyboard.openstack.org/#!/project/1162
- IRC: #openstack-qa on OFTC
While Tempest is cloud-agnostic because all clouds expose the same OpenStack APIs (with some caveats around extensions), whitebox peaks behind the curtain, and thus is coupled to the way the cloud was deployed. Currently, devstack and TripleO (with undercloud and overcloud) are supported, with only devstack being tested in CI.
Some tests have specific hardware requirements. These should be documented as config options, and tests are expected to skip if their hardware requirements are not declared in the configuration.
Install, configure and run
Tempest needs to be installed and configured.
Install the plugin.
This should be done from source. :
WORKSPACE=/some/directory cd $WORKSPACE git clone https://opendev.org/openstack/whitebox-tempest-plugin sudo pip install whitebox-tempest-plugin
The exact configuration will depend on the deployment. There is no configuration reference yet, have a look at
whitebox_tempest_plugin/config.pyinstead. As an example, here is a configuration for a multinode TripleO deployment:
ctlplane_addresses = compute-0.localdomain:192.168.24.6,compute-1.localdomain:192.168.24.12 ctlplane_ssh_username = heat-admin ctlplane_ssh_private_key_path = /home/stack/.ssh/id_rsa containers = true max_compute_nodes = 2 # Some tests depend on there being a single # (available) compute node
Execute the tests. :
tempest run --serial --regex whitebox_tempest_plugin.
Whitebox expects its tests to run one at a time. Make sure to pass --serial or --concurrency 1 to tempest run.
How to add a new test
Tests should fit whitebox's scope. If a test intereacts with REST
APIs and nothing else, it is better suited for Tempest itself. New tests
should be added in their respective subdirectories. For example, tests
that use the compute API live in
whitebox_tempest_plugin/api/compute. Test code does not
need unit tests, but helpers or utilities do. Unit tests live in
whitebox_tempest_plugin/tests. Whitebox does not adhere to
the Tempest plugin interface
mentioned, whitebox tests run one at a time, so it's safe for a test to
modify the environment and/or be destructive, as long as it cleans up
after itself. For example, changing Nova configuration values and/or
restarting services is acceptable, as long as the original values and
service state are restored.