Google Cloud Registry Credential Helper

[emerson-argueta]

Currently in the documentation, to authenticate with google cloud docker registry, you need to use a service account key.
However, generally I'd authenticate the registry using the credential helper using

gcloud auth configure-docker <registry name>

With this I wouldn't need to authenticate with a service account key.
If I omit the username and password for the registry section in the deploy.yml would kamal fail?

[tuladhar]

Yes, username and password for registry is mandatory. If you omit it, Kamal will fail. Also, you can use following command to verify if registry login works with credential helper:

kamal registry login

Alternatively, you can use AWS ECR as example to see if this works for Google Cloud.

registry:
  server: <region>-docker.pkg.dev
  username: oauth2accesstoken
  password: $(gcloud auth print-access-token)