Docker build and publish #304

	name: Docker build and publish

	on:
	# run it on push to the default repository branch
	push:
	branches: [master]
	# run it during pull request
	pull_request:
	schedule:
	- cron: "0 0 * * 0"
	workflow_dispatch:

	jobs:
	# define job to build and publish docker image
	build-and-push-nightly-docker-image:
	name: Build Docker image and push to repositories
	# run only when code is compiling and tests are passing
	runs-on: ubuntu-latest

	# steps to perform in job
	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	# setup Docker buld action
	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v2

	# - name: Login to DockerHub
	# uses: docker/login-action@v2
	# with:
	# username: ${{ secrets.DOCKERHUB_ID }}
	# password: ${{ secrets.DOCKERHUB_TOKEN }}

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

	- name: Build image and push to Docker Hub and GitHub Container Registry
	uses: docker/build-push-action@v3
	with:
	context: .
	# Note: tags has to be all lower-case
	tags: \|
	ghcr.io/apertium/apy:latest
	# apertium/apy:latest
	# build on feature branches, push only on main branch
	push: ${{ github.ref == 'refs/heads/master' }}

	- name: Image digest
	run: echo ${{ steps.docker_build.outputs.digest }}

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