anchor.diff:      machine_type: n1-standard-16
       root_disk_size_gb: 700
       root_disk_type: pd-ssd
  -    tags: [bosh-lite-public]
   
   compilation:
     workers: 3
  
positive.code:     machine_type: n1-standard-2
      root_disk_size_gb: 20
      root_disk_type: pd-ssd
  
  - name: database
    cloud_properties:
  
negative.code:         subnetwork_name: concourse-public-us-east1-2
          ephemeral_external_ip: true
          tags:
            - concourse-internal
  
    - name: vip
  