Testing Matrix

[vdemeester]

The operator should be tested on a variety of Kubernetes version, from the lowest we support to the latest available.

We should nightly as well as on pull-requests (running them in parallel). Today, we only have one check which is pull-tekton-operator-integration-tests. Instead we should have several of them, one per k8s version we "support". We do not necessarily need to run the full test-suites on all version (if they are taking ages), but a selected number that should cover the basis (and most components if not all).

• We can go the chains route and start by using GitHub workflows (and kind)
• We can then (or initially) go the tekton+matrix routes and hook the dogfooding tekton cluster to this repository.

I would suggest we should go ahead with the GitHub workflow to work on the "tooling" to do this. Porting it to tekton then should be relatively straightforward.

cc @tektoncd/operator-maintainers

Note: e.g. tektoncd/chains is doing that on pull-request (like here)