Adds github build and push workflow #1

	name: Build and push feature/sea-data-cloud

	concurrency:
	group: "build-and-push_sea-data-cloud"
	cancel-in-progress: true

	env:
	TITLE: "52°North Helgoland SDN"
	VENDOR: "52°North GmbH"
	AUTHORS: "https://52North.org/"
	DESCRIPTION: "Helgoland Build for Sea Data Network (SDN)"
	LICENSE: "GPL-3.0"
	IMAGE: 52north/helgoland-sdn
	TAG: latest

	on:
	push:
	branches: [ feature/sea-data-cloud ]

	jobs:
	build_and_push:
	runs-on: ubuntu-latest
	steps:
	-
	name: Checkout
	uses: actions/checkout@v3
	with:
	ref: feature/sea-data-cloud
	-
	name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2
	-
	name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: ${{ env.IMAGE }}
	labels: \|
	"org.opencontainers.image.authors=${{ env.AUTHORS }}"
	"org.opencontainers.image.vendor=${{ env.VENDOR }}"
	"org.opencontainers.image.description=${{ env.DESCRIPTION }}"
	"org.opencontainers.image.title=${{ env.TITLE }}"
	"org.opencontainers.image.licenses=${{ env.LICENSE }}"
	tags: \|
	${{ env.TAG }}
	-
	name: Login to Docker Hub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}
	-
	name: Build and push
	uses: docker/build-push-action@v4
	with:
	context: .
	file: ./Dockerfile
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: type=registry,ref=${{ env.IMAGE }}:buildcache
	cache-to: type=registry,ref=${{ env.IMAGE }}:buildcache,mode=max

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