Garbage collect old images #590

	name: Garbage collect old images
	on:
	workflow_dispatch: {}
	workflow_run:
	workflows:
	- Build Base OS (periodic)
	- Build OS Content
	types:
	- completed

	env:
	REGISTRY_USER: aleskandrox
	IMAGE_REGISTRY: quay.io
	IMAGE_NAME: fedora
	REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
	MAX_RETENTION: 10

	jobs:
	garbage-collection:
	name: Garbage collect tags (${{ matrix.variant }}-${{ matrix.image }})
	runs-on: ubuntu-latest
	container:
	image: quay.io/coreos-assembler/coreos-assembler:latest
	env: {}
	volumes:
	- volume:/workspace
	options: -u root --privileged
	strategy:
	matrix:
	variant:
	- silverblue
	- kinoite
	- toolbox
	image:
	- rawhide
	- custom
	steps:
	- name: Garbage collect
	id: garbage-collect
	run: \|
	podman login ${{ env.IMAGE_REGISTRY }} -u ${{ env.REGISTRY_USER }} -p ${{ secrets.REGISTRY_PASSWORD }} --verbose
	JSON=$(skopeo list-tags \
	docker://quay.io/${{ env.REGISTRY_USER }}/${{ env.IMAGE_NAME }} \
	\| jq)
	jq <<<"$JSON"
	set -x
	jq -r '.Tags\|sort\|.[]\|select(.\|test("${{ matrix.variant }}-${{ matrix.image }}-[0-9]{4}-[0-9]{2}-[0-9]{2}"))' <<<"$JSON" \
	\| head -n -${{ env.MAX_RETENTION }} \| while read -r tag
	do
	echo "Removing quay.io/${{ env.REGISTRY_USER }}/${{ env.IMAGE_NAME }}:${tag}"
	skopeo delete "docker://quay.io/${{ env.REGISTRY_USER }}/${{ env.IMAGE_NAME }}:${tag}"
	done

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