Latest #9

	# Latest updates the :latest tag for the quay.io/tinkerbell/hegel image to the latest release.
	# The latest release is controlled by maintainers as defined by Github's 'latest release' flag
	# on releases and can be generally defined as the latest major.minor.patch.
	#
	# Given this workflow is triggered when a release is published or edited, it is susceptible
	# to being overtriggered. The workflow operates on the assumption that a published release has
	# an associated docker image.
	name: Latest
	on:
	workflow_dispatch: {}
	release:
	types: [published, edited]

	env:
	REGISTRY: quay.io
	IMAGE: quay.io/${{ github.repository }}

	jobs:
	latest:
	name: Update latest image tag
	runs-on: ubuntu-latest
	container:
	image: alpine:latest
	steps:
	- name: Login to quay.io
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ secrets.QUAY_USERNAME }}
	password: ${{ secrets.QUAY_PASSWORD }}

	- name: Install skopeo
	run: \|
	apk update
	apk add skopeo

	- name: Tag and push
	run: \|
	LATEST_RELEASE=$(curl -H "Accept: application/json" https://api.github.com/repos/tinkerbell/hegel/releases/latest \| jq .name -r)
	skopeo copy docker://${{ env.IMAGE }}:$LATEST_RELEASE docker://${{ env.IMAGE }}:latest

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