self contained image doc #25

	# borrowed from
	# https://github.com/PrivacyDevel/nitter/blob/master/.github/workflows/build-publish-docker.yml
	name: Build and Publish Docker

	on:
	push:
	branches: ["master"]
	paths-ignore: ["README.md"]
	pull_request:
	branches: ["master"]
	paths-ignore: ["README.md"]

	env:
	IMAGE_NAME: ${{ github.repository }}

	permissions:
	contents: read
	packages: write

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

	- name: Set up QEMU
	id: qemu
	uses: docker/setup-qemu-action@v2
	with:
	platforms: arm64

	- name: Setup Docker buildx
	id: buildx
	uses: docker/setup-buildx-action@v2

	- name: Log in to GHCR
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract Docker metadata
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: \|
	ghcr.io/${{ env.IMAGE_NAME }}

	- name: Build and push all platforms Docker image
	id: build-and-push
	uses: docker/build-push-action@v4
	with:
	context: .
	push: ${{ github.event_name != 'pull_request' }}
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	platforms: linux/amd64,linux/arm64
	cache-from: type=gha
	cache-to: type=gha,mode=max

	- name: Build and push all platforms Docker image for self-contained variant
	uses: docker/build-push-action@v2
	with:
	context: .
	file: self-contained.Dockerfile
	push: ${{ github.event_name != 'pull_request' }}
	tags: ghcr.io/${{ github.repository_owner }}/nitter-self-contained:latest
	platforms: linux/amd64,linux/arm64

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