CI: publish docker image #2

	name: Build and Push Docker Image

	on:
	push:
	branches:
	- main
	tags:
	- '*'

	jobs:
	docker:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	steps:
	- name: Check out the repo
	uses: actions/checkout@v4

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Log in to GitHub Container Registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.repository_owner }}
	password: ${{ secrets.CR_PAT }}

	- name: Extract tag name
	id: tag_name
	run: echo "TAG_NAME=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV

	- name: Build and push Docker image
	uses: docker/build-push-action@v5
	with:
	context: .
	file: ./Dockerfile
	push: true
	tags: ghcr.io/${{ github.repository }}/kube-downscaler:${{ env.TAG_NAME }}

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