fix: add exclusion for main tags in cleanup workflow #19

	name: Build (main)

	on:
	push:
	branches:
	- main
	workflow_dispatch:

	env:
	REGISTRY: ghcr.io/openmcp-project
	IMAGE_NAME: mcp-ui-backend

	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	permissions:
	contents: write
	packages: write
	id-token: write
	attestations: write

	steps:
	- name: Checkout code
	uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
	with:
	fetch-depth: 0 # Fetch all history for all tags and branches

	- name: Docker meta
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{env.REGISTRY}}/${{env.IMAGE_NAME}}
	tags: \|
	type=raw,value={{branch}}-{{date 'YYYYMMDDHHmmss'}}

	- name: Log in to the Container registry
	uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Set up QEMU
	uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 #v3.6.0

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 #v3.10.0

	- name: Build and push
	uses: docker/build-push-action@14487ce63c7a62a4a324b0bfb37086795e31c6c1 #v6.16.0
	with:
	context: .
	platforms: linux/amd64,linux/arm64
	push: true
	sbom: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	annotations: ${{ steps.meta.outputs.annotations }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

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