Merge pull request #15 from amp-buildpacks/feat/issue-11 #12

	name: Push Builder Image

	# on:
	# release:
	# types:
	# - published

	on:
	push:
	tags:
	- v[0-9]+.*

	permissions:
	contents: read
	packages: write

	jobs:
	push:
	name: Push
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Get pack version
	id: pack-version
	run: \|
	version=$(jq -r .pack "scripts/.util/tools.json")
	echo "version=${version#v}" >> "$GITHUB_OUTPUT"

	- name: Install Global Pack
	uses: buildpacks/github-actions/setup-pack@main
	with:
	pack-version: ${{ steps.pack-version.outputs.version }}

	- name: Create Builder Image
	run: \|
	pack builder create builder --config builder.toml

	- name: Set environment variable
	run: echo "IMAGE_NAME=ghcr.io/${{ github.repository }}" >> $GITHUB_ENV

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

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.IMAGE_NAME }}

	- name: Push To ghcr.io
	run: \|
	registry_uri="ghcr.io"
	registry_repo="${{ github.repository }}"
	version="${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.version'] }}"
	version=${version#v}

	docker tag builder "${registry_uri}/${registry_repo}:latest"
	docker tag builder "${registry_uri}/${registry_repo}:${version}"

	docker push "${registry_uri}/${registry_repo}:latest"
	docker push "${registry_uri}/${registry_repo}:${version}"

Provide feedback