Improve instructons and update packages and workflows #3

	name: Docker

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]
	deployment:
	workflow_dispatch:

	env:
	DB_DATABASE: liberu
	DB_USERNAME: liberu
	DB_PASSWORD: secret

	jobs:
	docker:
	if: github.event_name == 'push'
	runs-on: ubuntu-latest
	steps:
	-
	name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	-
	name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81
	with:
	images: liberu/genealogy

	-
	# Setting up Docker Buildx with docker-container driver is required
	# at the moment to be able to use a subdirectory with Git context
	name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Build and push Docker image
	uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0
	with:
	# context: "{{defaultContext}}:.docker/prod/app/"
	file: Dockerfile
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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