Add auto update docker #30

	name: Docker Image CI

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: a3d3-institute/hdr-image

	jobs:

	build:

	runs-on: ubuntu-24.04

	permissions:
	contents: read
	packages: write
	attestations: write
	id-token: write

	steps:
	- name: Remove unnecessary files
	run: \|
	sudo rm -rf /usr/share/dotnet
	sudo rm -rf "$AGENT_TOOLSDIRECTORY"
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Log in to the Container registry
	uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- name: Build and push Docker image
	id: push
	uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
	with:
	context: .
	push: false
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

	- name: Generate artifact attestation
	uses: actions/attest-build-provenance@v2
	with:
	subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
	subject-digest: ${{ steps.push.outputs.digest }}
	push-to-registry: false

	# - name: Build the Docker image
	# run: docker build . --file Dockerfile --tag hdr-image:$(date +%s)

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