Docker / Images, Dockerfiles & Build Reliability
Investigate a registry authorization failure against the exact repository
A registry can allow login while denying one repository or tag. A denied pull is not always an expired password.
Environment and inputs: Docker Engine · Compose v2 and Buildx where specified; Linux containers unless noted. Verify daemon context, installed feature support and authorized host or Swarm manager access first.
Start with this check
Confirm the environment and replace sample objects, namespaces, images, paths and hosts with approved targets. Share only relevant, sanitized output. Follow the workload owner’s process for changes.
docker buildx imagetools inspect registry.example.com/team/app:releaseRead the result
With a supported Buildx client and authorized registry context, this queries remote image metadata. It does not prove layer downloads or deployment permissions work.
Resolve and verify
Compare the exact registry hostname, repository path and required scope with the approved credential provider. Correct the narrow identity or reference and retest safely.
Before changing production
Do not paste access tokens into command lines or grant registry-wide administration to repair one pull.