ci: setup #3

	---
	name: "Build & Publish Container"

	on:
	push:
	branches:
	- main
	pull_request:
	release:
	types:
	- published

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true


	jobs:
	docker-publish:
	# This action doesn't need to wait on any other task, it's easy to re-tag if something failed and we're validating
	# the tag here also
	name: Push container image to ghcr.io
	runs-on: ubuntu-latest
	environment:
	name: release
	permissions:
	# For the docker push and the git clone
	packages: write
	contents: read
	steps:
	- uses: actions/checkout@v4

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2

	- uses: docker/setup-buildx-action@v3

	- uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.repository_owner }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ghcr.io/${{ github.repository}}
	tags: \|
	type=ref,event=branch
	type=ref,event=pr
	type=sha
	# Semver
	type=semver,pattern={{version}}
	type=semver,pattern={{major}}.{{minor}}
	# disabled if major zero
	type=semver,pattern={{major}},enable=${{ !startsWith(github.ref, 'refs/tags/v0.') }}

	- name: "Build and push Docker image"
	uses: docker/build-push-action@v6
	with:
	context: .
	platforms: linux/amd64,linux/arm64,linux/arm/v7
	# Reuse the builder
	cache-from: type=gha
	cache-to: type=gha,mode=max
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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