Add Docker registry credentials

To enable Cloudera AI to fetch custom engines from a secure repository, as Administrator you need to add Docker registry credentials.

Create a kubectl secret named regcred for your secured Docker registry. The following command creates the secret in your Kubernetes cluster:
kubectl create secret docker-registry regcred \
    --docker-server=[***SERVER HOST***] \
    --docker-username=[***USERNAME***] \
    --docker-password=[***PASSWORD***] \
    -n [***COMPUTE NAMESPACE***]

The next time the engine image is pulled, the new secret will be picked up.