gcloud cached docker build setup

build.sh

#!/usr/bin/env bash
cd `dirname $0`/../..
set -e

IMAGE_NAME=eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/$1

# Use multiple cache sources that make sense in given context.
# This setup is good for pull-request based CI, as most branches
# are based on master branch, each commit has a high chance
# to hit the cache of it's direct parent.

IMAGE_MASTER=${IMAGE_NAME}:master
IMAGE_BRANCH=${IMAGE_NAME}:${BRANCH_NAME}
IMAGE_COMMIT=${IMAGE_NAME}:${COMMIT_SHA}
IMAGE_LATEST=${IMAGE_NAME}:latest

docker pull "${IMAGE_MASTER}" || true &
docker pull "${IMAGE_BRANCH}" || true &
wait

# use different dockerfile depending on build stage
docker build \
  --cache-from "${IMAGE_MASTER}" \
  --cache-from "${IMAGE_BRANCH}" \
  -t "${IMAGE_LATEST}" \
  -t "${IMAGE_BRANCH}" \
  -t "${IMAGE_COMMIT}" \
  -f "ci/Dockerfile.$1" .

cloudbuild.yaml

steps:
  # Build ui image
  - id: build-ui
    name: gcr.io/cloud-builders/docker
    entrypoint: 'scripts/build.sh'
    args: ['ui']
    env:
      - REPO_NAME=$REPO_NAME
      - COMMIT_SHA=$COMMIT_SHA
      - PROJECT_ID=$PROJECT_ID
      - BRANCH_NAME=$BRANCH_NAME
    waitFor: ['-']
   
   # Build server image
  - id: build-server
    name: gcr.io/cloud-builders/docker
    entrypoint: 'scripts/build.sh'
    args: ['server']
    env:
      - REPO_NAME=$REPO_NAME
      - COMMIT_SHA=$COMMIT_SHA
      - PROJECT_ID=$PROJECT_ID
      - BRANCH_NAME=$BRANCH_NAME
    waitFor: ['-']
    
   # Build testing image
   # You don't need to "COPY" your test source files in dockerfile.
   # Sources will be mounted as volume to the build container in next step.
  - id: build-test
    name: gcr.io/cloud-builders/docker
    entrypoint: 'scripts/build.sh'
    args: ['test']
    env:
      - REPO_NAME=$REPO_NAME
      - COMMIT_SHA=$COMMIT_SHA
      - PROJECT_ID=$PROJECT_ID
      - BRANCH_NAME=$BRANCH_NAME
    waitFor: ['-']
    
     # Test built images
  - id: test
    # Prepare an image with your testing environment, e.g. selenium, chrome and node.
    # You may use an image that was build in the same config in previous steps.
    name: eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/test:${COMMIT_SHA}
    args: ['scripts/test.sh']
    # you will probably need some envs to use inside your built image to resolve image names
    env:
      - REPO_NAME=$REPO_NAME
      - COMMIT_SHA=$COMMIT_SHA
      - PROJECT_ID=$PROJECT_ID
    waitFor:
      - build-test
      - build-ui
      - build-server
images:
  - eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/ui:latest
  - eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/ui:${BRANCH_NAME}
  - eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/ui:${COMMIT_SHA}
  - eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/server:latest
  - eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/server:${BRANCH_NAME}
  - eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/server:${COMMIT_SHA}
  - eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/test:latest
  - eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/test:${BRANCH_NAME}
  - eu.gcr.io/${PROJECT_ID}/${REPO_NAME}/test:${COMMIT_SHA}