Build and push Docker image to GHCR #18

	name: Build and push Docker image to GHCR

	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.

	on:
	workflow_dispatch:
	release:
	branches: ['main']
	types: ['published']

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}
	PLATFORMS: linux/amd64, linux/arm64, linux/arm/v7

	jobs:
	build:
	runs-on: ubuntu-22.04
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

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

	- name: Log into registry ${{ env.REGISTRY }}
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

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

	- name: Build and push Docker image
	id: build-and-push
	uses: docker/build-push-action@v4
	with:
	context: .
	push: true
	platforms: ${{ env.PLATFORMS }}
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

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