Cloud Build env

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steps:
# Uses the ubuntu build step:
# to run a shell script; and
# set env variables for its execution
- name: 'ubuntu'
  args: ['bash', './myscript.sh']
  env:
  - 'BUILD=$BUILD_ID'
  - 'PROJECT_ID=$PROJECT_ID'
  - 'PROJECT_NUMBER=$PROJECT_NUMBER'
  - 'REV=$REVISION_ID'

# Uses the docker build step to build an image called my-image
- name: 'gcr.io/cloud-builders/docker'
  args: ['build', '-t', 'gcr.io/$PROJECT_ID/my-image', '.']

# my-image is pushed to Container Registry
images:
- 'gcr.io/$PROJECT_ID/my-image'

cloud.google.com