Arlington readme #86

	name: Publish image to GitHub Packages
	on:
	push:
	branches:
	- 'arlington'

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: veraPDF/rest

	jobs:
	publish:
	if: github.repository == 'veraPDF/veraPDF-rest'
	name: Build and push Docker image to GitHub packages
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

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

	- name: Extract metadata (tags, labels) for GitHub
	id: meta
	uses: docker/metadata-action@v2
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- name: Build and push Docker image
	uses: docker/build-push-action@v2
	with:
	context: .
	push: true
	file: Dockerfile
	build-args: GH_CHECKOUT=arlington
	tags: ghcr.io/verapdf/arlington:dev
	labels: ${{ steps.meta.outputs.labels }}

	test:
	name: Test Docker image
	needs: [ publish ]
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Set up JDK 1.11
	uses: actions/setup-java@v1
	with:
	java-version: 1.11

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