cloudbuild.yaml

steps:
# Build the ko binary.
- name: gcr.io/cloud-builders/go:debian
  env: ['PROJECT_ROOT=github.com/google/go-containerregistry']
  args: ['install', 'github.com/google/go-containerregistry/cmd/ko']

# Use the ko binary to build the crane and gcrane builder images.
- name: gcr.io/cloud-builders/go:debian
  env: ['GOPATH=/workspace/gopath', 'KO_DOCKER_REPO=gcr.io/$PROJECT_ID']
  entrypoint: /workspace/gopath/bin/ko
  dir: gopath/src
  args: ['publish', '-P', 'github.com/google/go-containerregistry/cmd/crane']

- name: gcr.io/cloud-builders/go:debian
  env: ['GOPATH=/workspace/gopath', 'KO_DOCKER_REPO=gcr.io/$PROJECT_ID']
  entrypoint: /workspace/gopath/bin/ko
  dir: gopath/src
  args: ['publish', '-P', 'github.com/google/go-containerregistry/cmd/gcrane']

# Use the crane builder to retag crane and gcrane.
- name: gcr.io/$PROJECT_ID/github.com/google/go-containerregistry/cmd/crane
  args: ['copy', 'gcr.io/$PROJECT_ID/github.com/google/go-containerregistry/cmd/crane', 'gcr.io/$PROJECT_ID/crane']

- name: gcr.io/$PROJECT_ID/github.com/google/go-containerregistry/cmd/crane
  args: ['copy', 'gcr.io/$PROJECT_ID/github.com/google/go-containerregistry/cmd/gcrane', 'gcr.io/$PROJECT_ID/gcrane']

# Use the crane builder to get the digest for crane and gcrane.
- name: gcr.io/$PROJECT_ID/crane
  args: ['digest', 'gcr.io/$PROJECT_ID/crane']

- name: gcr.io/$PROJECT_ID/crane
  args: ['digest', 'gcr.io/$PROJECT_ID/gcrane']