Error when using repository

post by Andrew_Meyer on Aug 25, 2025

I am trying to pull container images from registry.redhat.io and i’m getting this error when using nexus repo manager. I am using podman for this. Here is the error:

DEBU[0001] Error pulling candidate nexus01.example.com:9093/rhel9/nginx-120:latest: internal error: unable to copy from source docker://nexus01.example.com:9093/rhel9/nginx-120:latest: copying system image from manifest list: parsing image configuration: fetching blob: unauthorized: access to the requested resource is not authorized
Error: internal error: unable to copy from source docker://nexus01.example.com:9093/rhel9/nginx-120:latest: copying system image from manifest list: parsing image configuration: fetching blob: unauthorized: access to the requested resource is not authorized

post by mpiggott on Aug 25, 2025

You have some sort of authentication error. Either between the client and Nexus, or Nexus and the remote registry.

post by Andrew_Meyer on Aug 25, 2025

I have anonymous access turned on…and this is trying to access redhat container registry.

post by Andrew_Meyer on Aug 25, 2025

Also if I look at the datastore for the repo, I see the container browsing the web ui.

Is there any special trick to make this work with redhat’s container registry let alone yum/dnf repos?

post by Andrew_Meyer on Aug 25, 2025

I got this resolved. It was an auth issue on the nexus to repo side.

post by Andrew_Meyer on Aug 25, 2025

ok, so I tried switching this up and using a service account from redhat, but it looks like i’m having an auth issue again. Can you verify?

DEBU[0000] Accessing "nexus.example.com:9093/rhel9/cups:latest" failed: reading manifest latest in nexus.example.com:9093/rhel9/cups: manifest unknown
DEBU[0000] Error pulling candidate nexus.example.com:9093/rhel9/cups:latest: internal error: unable to copy from source docker://nexus.example.com:9093/rhel9/cups:latest: initializing source docker://nexus.example.com:9093/rhel9/cups:latest: reading manifest latest in nexus.example.com:9093/rhel9/cups: manifest unknown
Error: internal error: unable to copy from source docker://nexus.example.com:9093/rhel9/cups:latest: initializing source docker://nexus.example.com:9093/rhel9/cups:latest: reading manifest latest in nexus.example.com:9093/rhel9/cups: manifest unknown

post by mpiggott on Aug 25, 2025

There is an outbound request log which you can examine for requests made by nexus to remotes.

post by Andrew_Meyer on Aug 25, 2025

I didn’t know that. Thanks!