username property

Required if the container image is from a private Docker registry.

The username to login to the Docker registry that contains the image. You can either specify the username directly by using plain text or specify an encrypted username by using a Secret Manager secret: projects / * /secrets / * /versions / * . However, using a secret is recommended for enhanced security. Caution: If you specify the username using plain text, you risk the username being exposed to any users who can view the job or its logs. To avoid this risk, specify a secret that contains the username instead. Learn more about Secret Manager and using Secret Manager with Batch.