How to push an image to an unexposed OpenShift Docker registry

August 9, 2017

How do I push an image to the OpenShift Docker registry if it is not exposed outside the cluster?

Login to a member node

Get on a machine that has docker and participates in the cluster SDN or can somehow access that network. (eg. 172.30.0.0/16)

Get the IP of the registry

oc get svc docker-registry -n default --template "{{ .spec.clusterIP }}"
SVC_REGISTRY=$(oc get svc docker-registry -n default --template "{{ .spec.clusterIP }}")

Get a token for your session

How to List Tags On Redhat Registry Images

July 11, 2016

Ever gone to RedHat’s container registry to search for an image and been left wondering what versions exist? Ever been frustrated by the inconsistent tag format? Is there a v or is there not a v? Me too.

Docker Hub has progressed to v2, while the RedHat registry is still v1 at the moment. As long as you use the right syntax, you can use curl to query the registry API and list the tags like this: