Folks, I have 3 controller nodes and on controller01 I have configured the local registry and pushed all images into the local registry. I have pointed out 2 other nodes to use controller01 local registry. When i run "kolla-ansible -i multinode deploy" it works on controller01 and docker start all containers but one controller02 and 03 I encounter error related docker registry Error: https://paste.opendev.org/show/bmwbM3PB33a8hrA1Wi6e/ docker daemon.json file on controller02 and 03 (docker-reg is point to controller01) root@controller02:~# cat /etc/docker/daemon.json { "bridge": "none", "insecure-registries": [ "docker-reg:4000" ], "ip-forward": false, "iptables": false, "log-opts": { "max-file": "5", "max-size": "50m" } How do I check my docker registry is functioning? I have tried following commands on 02 and 03 nodes but following error. root@controller02:~# docker pull docker-reg:4000/openstack.kolla/ubuntu-source-fluentd Using default tag: latest Error response from daemon: manifest for docker-reg:4000/openstack.kolla/ubuntu-source-fluentd:latest not found: manifest unknown: manifest unknown Are there any way to test if my registry is functional and nothing wrong. There are no network issues. I have a test with port ping using the nc command.