tripleo-ci/README.rst

toci

Description

TripleO CI test framework.

Tools to help run CI jobs for TripleO. Includes things like:

• Shell scripts to help execute jobs on CI slave nodes (Jenkins slaves)
• A test environment broker framework which uses a client-server model to execute jobs on a remote bare metal machine in an isolated test environment (using VMs).
• Image elements to help build images for the test environment broker nodes.
• Heat templates to help deploy and maintain test environment nodes using an undercloud.
• Helper script(s) to generate CI status reports. (tox -ecireport -- -f)
• Helper getthelogs script to download important job logs locally. Then you may want to inspect the logs for known errors and contribute discovered search patterns as the elastic-recheck queries.

OpenStack Infrastructure is deploying multiple jobs with different scenarios. OpenStack services are balanced between different scenarios because OpenStack Infastructure Jenkins slaves can not afford the load of running everything on the same node.

Usage Details

On March 2017, the ansible quickstart framework was added to TOCI to gradually replace the bash scripts that drove the jobs. Part of the original framework has been changed to allow the new framework to handle jobs, but maintaining backwards compatibility with the original framework while jobs are being transitioned

TOCI entry point

Upon starting a job, based on the configuration of its layout, zuul will call devstack-gate, which is needed for the basic nodepool node setup, but will then pass the control to toci_gate_test.sh. During the transition, this will be a symbolic link to toci_gate_test-oooq.sh.

Quickstart Transition scripts

The initial part of toci_gate_test-oooq.sh script decides whether to exec the original workflow or continue with the quickstart workflow, based on the job type passed down by zuul layout parameters. To move a job to the new quickstart framework, it is enough to propose a change to zuul layout to add a "featureset" keyword on its type. When using the quickstart workflow, the rest of the script will assemble a set of arguments to pass to quickstart scripts, based on the components of the job type separated by dashes e.g. a job type value of "periodic-ovb-featureset001" will make the script assemble arguments to deal with "ovb" provisioning, and set featurset001 to be the test matrix for the job. This script will also invoke the test environment broker to create the proper ovb environment. At the end the toci_gate_test-oooq.sh will pass control to toci_quickstart.sh script that will actually call quickstart with its parameters.

Quickstart Framework

toci_quickstart.sh consists of three parts, setup, invocationo and logs collection.

For more information about feature sets and test matrix please see .. _Featureset Documentation: https://docs.openstack.org/developer/tripleo-quickstart/feature-configuration.html from quickstart documentation The new workflow uses the directory toci-quickstart/ to store TripleO ci specific configurations, roles or playbooks for the quickstart workflow The parts of quickstart under scripts/ are instead handled by the original framework only

Original Framework

Job parameters are configured in toci_gate_test-orig.sh. Control passes to one of the toci_instack_*.sh scripts (depending on the type of job being run) which do environment-specific setup. These scripts then call scripts/deploy.sh to run the actual deployment steps. For most things, deploy.sh simply calls scripts/tripleo.sh with the appropriate parameters.

In ascii art, the flow of the scripts would look like:

toci_gate_test -> toci_instack* -> deploy.sh -> tripleo.sh

There's some additional complexity that this description glosses over, but for the most part only tripleo-ci admins need to worry about it.

temprevert, cherry-pick, pin

There are three functions available in tripleo-ci which can be used to alter the git repos of non-tripleo projects that are used in tripleo-ci. They only work on projects that are part of OpenStack. Use of these should be avoided whenever possible as any changes made during a ci run will not apply to regular users of TripleO. However, they can be useful for determining which commit broke something, and in rare cases we may want to use them until a project can sort out a problem itself.

To apply one of these functions during a ci run, add it to the appropriate location in the toci_instack_*.sh script. There should be a comment that says "Tempreverts/cherry-picks/pins go here."

Note

Do not include the bug number in the commit message where you propose adding one of these functions. Any change whose commit message includes a reference to the bug will not apply the function. This is to allow testing of patches intended to fix the bug.

Warning

As of this writing, these functions all apply against the latest master branch of the project in question. They do not respect the current-tripleo repo versions.

• temprevert

  Revert a commit from a project. Takes 3 parameters: project, commit id, and bug number. Example:

  temprevert neutron 2ad9c679ed8718633732da1e97307f9fd9647dcc 1654032

• pin

  Pin to a commit from a project. This usually is not necessary now that our repos are gated by the promotion jobs. Takes 3 parameters: project, commit id, and bug number. Example:

  pin neutron 2ad9c679ed8718633732da1e97307f9fd9647dcc 1654032

• cherrypick

  Cherry-pick an active review from a project. Takes 3 parameters: project, Gerrit refspec, and bug number. The Gerrit refspec can be found under the download button of the change in question. Example:

  cherrypick neutron refs/changes/49/317949/28 1654032

Service testing matrix

The CI testing matrix for all scenarios is defined in tripleo-heat-templates. This matrix describes the services that will run in each environment.

Feature testing matrix

Feature	nonha	ha	updates
undercloud ssl overcloud ssl ceph ipv4 net-iso ipv6 net-iso pacemaker predictable placement introspection	X X X X	X X X	X X X