docker-slim-cloudbuild.yaml

substitutions:
  _IMAGE_NAME: "gcr.io/${PROJECT_ID}/myimage"
options:
  dynamic_substitutions: true
steps:
  # Step 0 - Build the container image
  - name: "gcr.io/cloud-builders/docker"
    args: ["build", "-f", "Dockerfile", "-t", "${_IMAGE_NAME}", "."]
  # Step 1 - Minify the container with docker-slim
  - name: "gcr.io/cloud-builders/docker"
    entrypoint: "bash"
    args:
      - "-c"
      - |
        curl -L -o ds.tar.gz https://downloads.dockerslim.com/releases/1.37.4/dist_linux.tar.gz;
        tar -xvf ds.tar.gz;
        mv  dist_linux/docker-slim /usr/local/bin/;
        mv  dist_linux/docker-slim-sensor /usr/local/bin/;
        docker-slim build --sensor-ipc-mode proxy --sensor-ipc-endpoint $(docker network inspect bridge -f '{{range .IPAM.Config}}{{.Gateway}}{{end}}' | cut -f1) ${_IMAGE_NAME};
  # Step 2 - Push the SLIM container to registry
  - name: "gcr.io/cloud-builders/docker"
    args: ["push", "${_IMAGE_NAME}.slim"]