anchor.diff:      Where `YOUR-PROJECT-ID` is your project ID.
   
   1. Create a JSON key file and associate it with the service account by running:
  -  
  +
       ```
       gcloud iam service-accounts keys create key.json --iam-account=YOUR-ACCOUNT@YOUR-PROJECT-ID.iam.gserviceaccount.com
       ```
  
positive.code: 1. Create a GCP service account. To create a GCP service account,
     see the [Google Cloud documentation](https://cloud.google.com/compute/docs/access/create-enable-service-accounts-for-instances).
     Run:
    
      ```
      gcloud iam service-accounts create YOUR-ACCOUNT --display-name "YOUR-DISPLAY-NAME"
      ```
  
negative.code: When configuring a Docker image for <%= vars.app_runtime_abbr %>, you can control the exposed port and the corresponding value of `PORT` by specifying the `EXPOSE` directive in the image Dockerfile. If you specify the `EXPOSE` directive, then the corresponding app pushed to <%= vars.app_runtime_abbr %> listens on that exposed port. For example, if you set `EXPOSE` to `7070`, then the app listens for connections on port 7070.
  
  If you do not specify a port in the `EXPOSE` directive, then the app listens on the value of the `PORT` environment variable as determined by <%= vars.app_runtime_abbr %>.
  
  If you set the `PORT` environment variable via an `ENV` directive in a Dockerfile, <%= vars.app_runtime_abbr %> overrides the value with the system-determined value.
  
  <%= vars.app_runtime_abbr %> supports only one exposed port on the image.
  