Try in both Swarm and Kubernetes functions in
Universal Control Plane 3.0 Beta2,
Docker Trusted Registry 2.5 Beta3,
EE Engine 17.06.3 Beta2.
It has no problem to start service from Swarm by using image from dtr,
Then remove image from cluster.
and create deployment in Kubernetes, Pods in “Pending” status and it complains: ImagePullBackOff.
if manually pull image from dtr to cluster, immediately Pods to “running” without problem.