Remove v1alpha1 version of resources which are available in v1beta1

[afrittoli]

It's been almost an year since Tekton Pipelines Beta release v0.11.0 "Ragdoll Norby" where we introduce the v1beta1 version of the following CRDs:

• Task
• ClusterTask
• Pipeline
• TaskRun
• PipelineRun

I don't recall us ever officially deprecating the v1alpha version of these five CRDs, I think we might have assumed it was implied by releasing their v1beta version. In any case, since they're alpha, the API compatibility policy allows us to remove them with one release of warning time.

I would propose the we:

• include the five v1alpha1 resources in the deprecation table in v0.34.x
• stop serving / supporting those five v1alpha1 resources in v0.35.x

@tektoncd/core-maintainers

[vdemeester]

I would love that 👼🏼 😝
@tektoncd/cli-maintainers that would be another reason for droping v1alpha1 support in the next releases of tkn 😛

[ghost]

This sounds like a great idea to me. This would allow us to remove the conversion webhook code that stores v1beta1 fields as annotations on v1alpha1 resources.

[pritidesai]

yup, definitely, creating V1 will be a little simpler without those alpha resources.