Improve documentation #4

	# 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.


	name: Create and publish a Docker image

	on:
	push:
	branches: [main]
	release:
	types: [published]

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

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

	- name: Set up Java environment
	uses: actions/setup-java@v1
	with:
	java-version: 17
	gpg-private-key: ${{ secrets.MAVEN_CENTRAL_GPG_SIGNING_KEY_SEC }}
	gpg-passphrase: MAVEN_CENTRAL_GPG_PASSPHRASE

	- name: Set up NPM
	uses: actions/setup-node@v3

	- name: Build with Maven
	run: CI=false mvn --batch-mode --update-snapshots package

	- name: OperationLog in to the Container registry
	uses: docker/login-action@49ed152c8eca782a232dede0303416e8f356c37b
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@69f6fc9d46f2f8bf0d5491e4aabe0bb8c6a4678a
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- name: Build and push Docker image
	uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
	with:
	version: v0.7.0
	context: .
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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