Prometheus Catalog ContainerMetrics getsockopt: connection refused

After installing Prometheus from the catalog on Rancher v1.6.2, and browsing to http://rancher-server:9090/targets, I’m seeing the following and have no idea if it is expected behavior:

Get http://rancher-server:9108/metrics: dial tcp getsockopt: connection refused

docker0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet netmask broadcast

Have you got the problem solved