Check Base Image Update #828
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| name: Check Base Image Update | |
| on: | |
| schedule: | |
| - cron: '20 4 * * *' | |
| pull_request: | |
| workflow_dispatch: | |
| env: | |
| REGISTRY: ghcr.io | |
| IMAGE_NAME: rmartin16/keepalived | |
| jobs: | |
| check: | |
| runs-on: ubuntu-latest | |
| outputs: | |
| update-available: ${{ steps.base-image-check.outputs.update-available }} | |
| steps: | |
| - name: Checkout repository | |
| uses: actions/checkout@v4 | |
| - name: Check for Base Image Update | |
| id: base-image-check | |
| run: | | |
| REPO="rmartin16/keepalived" | |
| GHCR_TOKEN=$(curl -s -u "${{ github.repository_owner }}:${{ secrets.GITHUB_TOKEN }}" "https://ghcr.io/token?service=ghcr.io&scope=repository:${REPO}:pull" | jq -r '.token') | |
| IMAGE_DIGEST=$(curl -s -H "Authorization: Bearer ${GHCR_TOKEN}" -H "Accept: application/vnd.oci.image.index.v1+json" https://ghcr.io/v2/${REPO}/manifests/latest | jq -r '.manifests[].digest' | head -n1) | |
| BASE_IMAGE_DIGEST=$(curl -s -H "Authorization: Bearer ${GHCR_TOKEN}" -H "Accept: application/vnd.oci.image.manifest.v1+json" https://ghcr.io/v2/${REPO}/manifests/${IMAGE_DIGEST} | jq -r '.layers[].digest' | head -n1) | |
| ALPINE_REPO="library/alpine" | |
| ALPINE_TAG=$(head -n1 Dockerfile | awk -F: '{print $2}' | awk -F' ' '{print $1}') | |
| DOCKER_TOKEN=$(curl -s "https://auth.docker.io/token?service=registry.docker.io&scope=repository:"${ALPINE_REPO}":pull"| jq -r '.token') | |
| ALPINE_DIGEST=$(curl -s -H "Authorization: Bearer ${DOCKER_TOKEN}" -H "Accept: application/vnd.docker.distribution.manifest.v2+json" "https://index.docker.io/v2/${ALPINE_REPO}/manifests/${ALPINE_TAG}" | jq -r '.layers[].digest') | |
| echo BASE_DIGEST.....${BASE_IMAGE_DIGEST} | |
| echo ALPINE_DIGEST...${ALPINE_DIGEST} | |
| echo .......................$(printf '%064x\n' $(( "0x$(echo $ALPINE_DIGEST | awk -F: '{print $2}')" ^ "0x$(echo $BASE_IMAGE_DIGEST | awk -F: '{print $2}')" ))) | |
| echo "update-available=false" >> ${GITHUB_OUTPUT} | |
| if [[ ! "${BASE_IMAGE_DIGEST}" == "${ALPINE_DIGEST}" ]]; then | |
| echo "update-available=true" >> ${GITHUB_OUTPUT} | |
| fi | |
| cicd: | |
| needs: check | |
| if: (needs.check.outputs.update-available == 'true') || (github.event_name == 'pull_request') | |
| uses: ./.github/workflows/docker-cicd.yml |