285 lines
9.7 KiB
YAML
285 lines
9.7 KiB
YAML
name: Build container image
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on:
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schedule:
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- cron: '05 12 * * 2,5'
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workflow_dispatch:
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env:
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IMAGE_DESC: "Custom Fedora bootc image"
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IMAGE_NAME: "${{ github.event.repository.name }}"
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DEFAULT_TAG: "stable"
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concurrency:
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group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
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cancel-in-progress: true
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jobs:
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build_push:
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name: Build and push image
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runs-on: ubuntu-24.04
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permissions:
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contents: read
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packages: write
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id-token: write
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steps:
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# ------------------------------------------------------------
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# Environment
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# ------------------------------------------------------------
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- name: Prepare environment
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run: |
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# Extrahiert die reine Domain/Host aus der Gitea-URL
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REGISTRY_HOST=$(echo "${{ github.server_url }}" | awk -F/ '{print $3}')
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OWNER_LOWER="${{ github.repository_owner }}"
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NAME_LOWER="${{ env.IMAGE_NAME }}"
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echo "REGISTRY_HOST=${REGISTRY_HOST}" >> "${GITHUB_ENV}"
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echo "IMAGE_REGISTRY=${REGISTRY_HOST}/${OWNER_LOWER,,}" >> "${GITHUB_ENV}"
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echo "IMAGE_NAME=${NAME_LOWER,,}" >> "${GITHUB_ENV}"
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- name: Determine image tag
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run: |
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BRANCH="${GITHUB_REF_NAME}"
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if [[ "$BRANCH" == "main" ]]; then
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echo "IMAGE_TAG=${DEFAULT_TAG}" >> "${GITHUB_ENV}"
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echo "IS_TEST_BUILD=false" >> "${GITHUB_ENV}"
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else
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SANITIZED=$(echo "$BRANCH" \
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| sed 's/[^a-zA-Z0-9._-]/-/g' \
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| head -c 50)
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echo "IMAGE_TAG=test-${SANITIZED}" >> "${GITHUB_ENV}"
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echo "IS_TEST_BUILD=true" >> "${GITHUB_ENV}"
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fi
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# ------------------------------------------------------------
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# Source
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# ------------------------------------------------------------
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- name: Checkout
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uses: actions/checkout@v7.0.1
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# ------------------------------------------------------------
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# Buildx
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# ------------------------------------------------------------
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v4.2.0
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# ------------------------------------------------------------
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# Image metadata
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# ------------------------------------------------------------
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- name: Image Metadata
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id: metadata
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uses: docker/metadata-action@v6.2.0
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with:
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images: ${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_NAME }}
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tags: |
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type=raw,value=${{ env.IMAGE_TAG }}
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type=raw,value=${{ env.IMAGE_TAG }}.{{date 'YYYYMMDD'}},enable=${{ env.IS_TEST_BUILD == 'false' }}
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type=raw,value={{date 'YYYYMMDD'}},enable=${{ env.IS_TEST_BUILD == 'false' }}
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type=sha,enable=${{ github.event_name == 'pull_request' }}
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type=ref,event=pr
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labels: |
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org.opencontainers.image.created={{date 'YYYY-MM-DDTHH:mm:ssZ'}}
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org.opencontainers.image.description=${{ env.IMAGE_DESC }}
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org.opencontainers.image.documentation=${{ github.server_url }}/${{ github.repository }}
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org.opencontainers.image.source=${{ github.server_url }}/${{ github.repository }}
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org.opencontainers.image.title=${{ env.IMAGE_NAME }}
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org.opencontainers.image.url=${{ github.server_url }}/${{ github.repository }}
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org.opencontainers.image.vendor=${{ github.repository_owner }}
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org.opencontainers.image.version=${{ env.IMAGE_TAG }}.{{date 'YYYYMMDD'}}
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containers.bootc=1
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ostree.bootable=1
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# ------------------------------------------------------------
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# Registry login
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# ------------------------------------------------------------
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- name: Login to Gitea Container Registry
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if: github.event_name != 'pull_request'
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uses: docker/login-action@v4.6.0
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with:
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registry: ${{ env.REGISTRY_HOST }}
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username: ${{ github.repository_owner }}
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password: ${{ secrets.REGISTRY }}
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# ------------------------------------------------------------
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# Prepare OCI archive destination
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# ------------------------------------------------------------
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- name: Prepare OCI archive
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run: |
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# Wichtig:
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# Falls aus einem vorherigen Lauf / Schritt ein Verzeichnis
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# namens oci-layout.tar existiert, muss es weg.
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rm -rf "${{ github.workspace }}/oci-layout.tar"
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echo "OCI output path:"
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echo "${{ github.workspace }}/oci-layout.tar"
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# ------------------------------------------------------------
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# Build
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# ------------------------------------------------------------
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- name: Build Image (Docker Buildx OCI-Export)
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uses: docker/build-push-action@v7.3.0
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id: build_image
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with:
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context: .
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file: ./Containerfile
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push: false
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pull: true
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tags: ${{ steps.metadata.outputs.tags }}
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labels: ${{ steps.metadata.outputs.labels }}
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cache-from: type=registry,ref=${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache
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cache-to: type=registry,ref=${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache,mode=max
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# Explizit ein OCI-TAR-Archiv erzeugen.
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#
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# tar=true ist absichtlich explizit gesetzt.
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outputs: type=oci,dest=${{ github.workspace }}/oci-layout.tar,tar=true
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# ------------------------------------------------------------
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# Verify OCI archive
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# ------------------------------------------------------------
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- name: Verify OCI archive
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if: github.event_name != 'pull_request'
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run: |
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set -e
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OCI_ARCHIVE="${{ github.workspace }}/oci-layout.tar"
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echo "Checking OCI archive..."
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if [ ! -f "$OCI_ARCHIVE" ]; then
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echo "ERROR: OCI archive is not a regular file!"
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ls -lah "${{ github.workspace }}"
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exit 1
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fi
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echo "OCI archive:"
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ls -lh "$OCI_ARCHIVE"
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echo
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echo "Archive contents:"
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tar -tf "$OCI_ARCHIVE" | head -30
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# ------------------------------------------------------------
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# Push using Skopeo
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# ------------------------------------------------------------
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- name: Push Image via Skopeo (zstd:chunked)
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if: github.event_name != 'pull_request'
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run: |
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set -e
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OCI_ARCHIVE="${{ github.workspace }}/oci-layout.tar"
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TAGS="${{ steps.metadata.outputs.tags }}"
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echo "OCI archive: ${OCI_ARCHIVE}"
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echo
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echo "Tags:"
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echo "${TAGS}"
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echo
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for TAG in $TAGS; do
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echo "============================================================"
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echo "Pushe ${TAG} via Skopeo mit zstd:chunked..."
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echo "============================================================"
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docker run --rm \
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-v "${OCI_ARCHIVE}:/workspace/oci-layout.tar:ro" \
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quay.io/skopeo/stable copy \
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--dest-creds "${{ github.repository_owner }}:${{ secrets.REGISTRY }}" \
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--dest-compress-format zstd:chunked \
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oci-archive:/workspace/oci-layout.tar \
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"docker://${TAG}"
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done
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# ------------------------------------------------------------
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# Install dependencies for signing
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# ------------------------------------------------------------
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- name: Install envsubst dependencies
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if: github.event_name != 'pull_request' && env.IS_TEST_BUILD == 'false'
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run: |
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sudo apt-get update
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sudo apt-get install -y gettext
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# ------------------------------------------------------------
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# Cosign
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# ------------------------------------------------------------
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- name: Install Cosign
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if: github.event_name != 'pull_request' && env.IS_TEST_BUILD == 'false'
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uses: sigstore/cosign-installer@v4.1.2
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- name: Sign container image (Recursive Digest)
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if: github.event_name != 'pull_request' && env.IS_TEST_BUILD == 'false'
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env:
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COSIGN_PRIVATE_KEY: ${{ secrets.SIGNING_SECRET }}
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COSIGN_PASSWORD: ""
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run: |
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set -e
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# 1. Cosign an der Gitea-Registry anmelden
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echo "${{ secrets.REGISTRY }}" \
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| cosign login "${{ env.REGISTRY_HOST }}" \
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-u "${{ github.repository_owner }}" \
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--password-stdin
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# 2. Finalen Digest via Skopeo abfragen
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echo "Frage finalen Registry-Digest via Skopeo ab..."
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OUTER_DIGEST=$(
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docker run --rm \
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quay.io/skopeo/stable inspect \
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--creds "${{ github.repository_owner }}:${{ secrets.REGISTRY }}" \
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"docker://${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_NAME }}:stable" \
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| jq -r .Digest
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)
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echo "Registry digest: ${OUTER_DIGEST}"
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# 3. Digest-basierte Referenz bauen
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IMAGE_REF="${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_NAME }}@${OUTER_DIGEST}"
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echo "Signiere Image rekursiv:"
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echo "${IMAGE_REF}"
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# 4. Rekursive Signatur
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cosign sign -y \
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--key env://COSIGN_PRIVATE_KEY \
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--recursive \
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--use-signing-config=false \
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--new-bundle-format=false \
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--registry-referrers-mode=legacy \
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"${IMAGE_REF}"
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# ------------------------------------------------------------
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# Cleanup
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# ------------------------------------------------------------
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- name: Post-Build Cleanup
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if: always()
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run: |
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echo "Räume temporäre Dateien und Buildx-Cache auf..."
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rm -rf "${{ github.workspace }}/oci-layout.tar"
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docker buildx prune -a -f || true |