ccaffd9f5a
Tempest has a plugin architecture which ceilometer can use to improve velocity and flexiblity. This spec proposes such a change. Change-Id: I910a9d2adaa20a8f254d53a3724f375be0acf1ca
3.5 KiB
Tempest Plugin
https://blueprints.launchpad.net/ceilometer/+spec/templest-plugin
As with devstack and grenade, the tempest program is encouraging projects to manage their own tempest tests via code hosted in each project's code repository. This spec proposes that we do this for those projects living under the ceilometer umbrella.
Problem description
Managing tempest tests within tempest itself in the world of the big tent is problematic: The people who want the tests to exist and the people who review tempest are not congruent. This can lead to delays in getting relevant tests in place. When projects host their own tests as plugins the projects decide what happens when, according to their own requirements.
For ceilometer which is now spread over a few repos and has increasingly complex integration scenarios these problems are multiplied.
Proposed change
Using the tempest
plugin documentation and tempest-lib
new tempest tests will be created in ceilometer related repos that
duplicate existing telemetry-related test functionality from tempest.
Initially these will be done in the ceilometer repo itself.
There is a sahara
example and a manila
example that can be used for guidance.
When these have proven themselves the test in tempest will be removed and the project should be in a position to greatly increase the number of tempest tests that are available and run.
Alternatives
We can leave things as they are now but this is contrary to the goals of the tempest project.
Data model impact
None.
REST API impact
None.
Security impact
None.
Pipeline impact
None.
Other end user impact
None.
Performance/Scalability Impacts
None.
Other deployer impact
If there is improved ceilometer coverage in tempest then operators who use tempest to validate their clouds will have increased confidence in more services in their cloud.
Developer impact
It will be easier for developers to find and improve tempest tests related to ceilometer.
Implementation
Assignee(s)
- Primary assignee:
-
chdent
- Other contributors:
-
you
- Ongoing maintainer:
-
The ceilometer team
Work Items
- Evaluate pre-existing work from other projects.
- Create a version for ceilometer.
- Create experimental gate jobs to test them against commits.
- Remove existing tempest tests.
- Update gate jobs.
Future lifecycle
The ceilometer team will need to be responsible for the ongoing care and feeding of the in-tree tempest tests.
Dependencies
None.
Testing
See work items above.
Documentation Impact
Tempest documentation will need to be updated to reflect that use of ceilometer will require referencing the plugin.