Push base image to GHCR and GCP #68

	name: Create and publish the Ruby base image
	on: push
	permissions:
	contents: read
	packages: write
	id-token: write
	env:
	IMAGE_NAME: baseimage-ruby
	GCP_REGISTRY: europe-west1-docker.pkg.dev/hunter-io/hunter
	GHCR_REGISTRY: ghcr.io/hunter-io
	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Authenticate with Google Cloud
	uses: google-github-actions/auth@v2
	with:
	credentials_json: ${{ secrets.GCP_SA_KEY }}

	- name: Set up Cloud SDK
	uses: google-github-actions/setup-gcloud@v2

	- name: Configure Docker to use Google Artifact Registry
	run: gcloud auth configure-docker europe-west1-docker.pkg.dev

	- name: Log in to GitHub Container Registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract branch name
	id: extract_branch_name
	run: echo "branch=${GITHUB_REF#refs/heads/}" >> $GITHUB_OUTPUT

	- if: github.ref != 'refs/heads/main'
	name: Build and push tagged version
	uses: docker/build-push-action@v5
	with:
	push: true
	tags: \|
	${{ env.GCP_REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.extract_branch_name.outputs.branch }}
	${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.extract_branch_name.outputs.branch }}

	- if: github.ref == 'refs/heads/main'
	name: Build and push latest
	uses: docker/build-push-action@v5
	with:
	push: true
	tags: \|
	${{ env.GCP_REGISTRY }}/${{ env.IMAGE_NAME }}:latest
	${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}:latest

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