Server error pushing to OpenShift 3 internal registry

Solution Unverified - Updated

Environment

OpenShift Enterprise 3.0

Issue

  • I am unable to push an image to the OpenShift v3 internal registry.

  • Error pushing to registry:
    Server error: unexpected 400 response status trying to initiate upload of centos-http-docker-image

  • Error message in docker-registry pod logs:
    ... level=error msg="error authorizing context: repository namespace required" ...

Resolution

  • When Tagging your image you must include the project/namespace where this image is meant to land.
# docker tag <image>  <docker-registry-ip>:5000/<Project_Name>/<image>

Example: 

  # docker tag f60efc86ce26 172.30.40.26:5000/myproject/centos-http-docker-image 
  # docker push 172.30.40.26:5000/myproject/centos-http-docker-image

  • Where "myprocect" is a namespace that the user your user that is logged into the docker registry has access to.

  • By default the project admin has this access. Add the user as admin for the project. 

oc policy add-role-to-user admin <user> -n <Project_Name>

Diagnostic Steps

  • If an image fails check your docker-registry pod logs for error messages:
# oc logs <registry-pod-name> 

  time="2015-09-14T12:13:50-04:00" level=error msg="error checking authorization: repository namespace required" http.request.host="172.30.40.26:5000"
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