Merge pull request #219 from OCR-D/fix-docker #36

	name: Docker Image CI

	on:
	workflow_dispatch:
	push:
	branches: [ "master" ]

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

	jobs:

	build:

	runs-on: ubuntu-latest
	permissions:
	packages: write
	contents: read

	steps:
	- uses: actions/checkout@v3
	- name: Checkout git submodules too
	run: git submodule sync && git submodule update --init
	- # Activate cache export feature to reduce build time of images
	name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2
	- name: Login to GitHub Container Registry
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: define image name from repo name
	run: echo "IMAGE_NAME=ghcr.io/${REPO_NAME,,}" >> $GITHUB_ENV
	- name: Build the Docker image
	run: make docker DOCKER_TAG=${{ env.IMAGE_NAME }}
	- name: Test the Docker image
	run: docker run --rm ${{ env.IMAGE_NAME }} ocrd-tesserocr-segment -h
	- name: Push to Github Container Registry
	run: docker push ${{ env.IMAGE_NAME }}

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