Docker Push Gitlab Runner 4 Jekyll #10

	name: Docker Push Gitlab Runner 4 Jekyll

	on:
	schedule:
	- cron: "0 0 1 * *"
	workflow_dispatch:
	push:
	# Publish `v1.2.3` tags as releases.
	tags:
	- v*

	env:
	IMAGE_NAME: gitlab-runner-jekyll

	jobs:
	push:
	runs-on: ubuntu-latest

	permissions:
	contents: read
	packages: write

	steps:
	- uses: actions/checkout@v2

	- name: Build image
	run: cd gitlab-runner-jekyll && docker build . --tag $IMAGE_NAME

	- name: Log into registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login ghcr.io -u ${{ github.repository_owner }} --password-stdin

	- name: Push image
	run: \|
	IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME

	# Change all uppercase to lowercase
	IMAGE_ID=$(echo $IMAGE_ID \| tr '[A-Z]' '[a-z]')

	# Strip git ref prefix from version
	VERSION=$(echo "${{ github.ref }}" \| sed -e 's,./$.$,\1,')

	# Strip "v" prefix from tag name
	[[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION \| sed -e 's/^v//')

	# Use Docker `latest` tag convention
	[ "$VERSION" == "main" ] && VERSION=latest

	echo IMAGE_ID=$IMAGE_ID
	echo VERSION=$VERSION

	docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
	docker push $IMAGE_ID:$VERSION

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