Output of enabled features for a PipelineRun/TaskRun

[JeromeJu]

Feature request

Pipeline end users, Tekton Pipeline and Task authors might not have the access to the ConfigMap or the controller logs. While we have behavioural flags and the to-be-implemented per feature flags, this might not be easy for users to tell what features are enabled. This issue is to start the discussion of such feature.

Use case

As a Tekton Pipeline author, when trying to debug my failed PipelineRun, I want to explicitly see what features are enabled in Tekton Pipeline for my PipelineRun from its output since I do not have the access to the cluster ConfigMap or controller logs.

related: tektoncd/community#1034

[vdemeester]

I think chains already capture these type of information, but it might make even more sense to have it attached to the PipelineRun/TaskRun objects most likely, as it would removed the need for chains (or any other components in need of this information) to figure it on its own or re-invent the wheel.

So I am 👍🏼 on this. We need to figure out what form it would take 👼🏼 .