Use gcr-cleaner to clean up pushed images to GCR during dev-loop

[tejal29]

Skaffold dev when pushing images could leave behind a lot of clutter costing users money.

Currently our docs, mention user had to perform cleanup on their own for images pushed remotely.

This task involves

1. documenting use of this new tool https://github.com/sethvargo/gcr-cleaner
2. hooking it up with skaffold delete so skaffold can clean up remote pushed images,

[sladyn98]

I can give this a shot, so I was reading the documentation for the gcr-cleaner, in order to hook it up to the skaffold delete, would we be running all the steps as mentioned in the readme or just spin up the image inside, I am not too familiar to the architecture so help would be appreciated
@tejal29

[tejal29]

Thanks @sladyn98. I haven't looked much into this. I was hoping, if we could re-use the code/lib to delete images which skaffold should already have knowledge of.

I see there is support for deleteOne https://github.com/sethvargo/gcr-cleaner/blob/main/pkg/gcrcleaner/cleaner.go#L154

It could be great if we can call this function deleteOne in background on all the images that were created in the current skaffold run.

[sladyn98]

@tejal29 Thanks for the input, I was going through the code and found that we have a function that calls and returns the builders for the image https://github.com/GoogleContainerTools/skaffold/blob/master/pkg/skaffold/event/util.go#L93
Would we want to call a skaffold.runBackground and then the run deleteOne inside of it ?