Failed to authenticate against registry when using Batch

[vedantroy-genmo]

I'm getting the following error:

```

docker: Error response from daemon: Head "https://us-central1-docker.pkg.dev/v2/project-name/gcpbatch-us-central1/megamind/manifests/latest": denied: Unauthenticated request. Unauthenticated requests do not have permission "artifactregistry.repositorie

```

Not sure what I am doing wrong, as I thought GCP batch handled pulling the docker images?

[wenyhu]

Hi @vedantroy-genmo,

Would you mind sharing your job uid with your logs (https://cloud.google.com/batch/docs/analyze-job-using-logs) to help Batch diagnose whether it is a flakiness issue on docker installation, or it is something that can improved with your job request?

In the meantime, Batch is aware of docker installation flakiness and is working on improvement.  If you don't see docker installation failure on your job every time when it's with the same request json,  could you try to set `maxRetryCount` field (https://cloud.google.com/batch/docs/reference/rest/v1/projects.locations.jobs#taskspec) to help retry on the failure to overcome the flakiness in the short term?

Thanks!

Wenyan