cleaning up pipelines from older versions

[henrjk]

PR #429 brings parameterized pruning of pipelines and pipeline runs when the next ods-pipeline version is released.
However it will not cleanup pipelines created with v0.2.0 or earlier.

Here are some commands that can help in a manual task:

oc get -n <your-namespace> pipelines --sort-by='{.metadata.creationTimestamp}' 
oc get -n <your-namespace> pr --sort-by='{.status.completionTime}'

The output could then be used to manually select what to delete and run separate commands for that. Alternatively https://github.com/haf-tech/tekton-101#clean-up gives some commands and suggestions for cleanup.

[gerardcl]

what about adding this in #339 ?

[henrjk]

This is certainly a possibility. Perhaps we wait whether there is additional feedback.
Perhaps we can label discussions with are candidates for a QA with an appropriate label?