| Protocol | Port Range | Purpose | Used By |
|---|---|---|---|
| TCP | 53,8089 | rbd-dns | Self |
| TCP | 80,443,6443,10254 | rbd-gateway | Self |
| TCP | 2379⁄23790,2380⁄23800,4001⁄40010 | etcd server client API | kube-apiserver, etcd,etcd-proxy |
| TCP | 3228 | rbd-chaos | Self |
| TCP | 3306 | rbd-db | Self |
| TCP | 4999 | rbd-ops-ui | Self |
| TCP | 5000 | rbd-hub | Self |
| TCP | 6060,8443,8888 | rbd-api | Self |
| TCP | 6100-6102,6666 | node | Self |
| TCP | 6300-6301 | rbd-mq | Self |
| TCP | 6362-6366 | rbd-eventlog | Self |
| TCP | 6369 | rbd-worker | Self |
| TCP | 6442,8181 | Kubernetes API server | All |
| TCP | 7070 | rbd-app-ui | Self |
| TCP | 7171 | rbd-webcli | Self |
| TCP | 8081 | rbd-repo | Self |
| TCP | 9999,3329 | rbd-monitor | Self |
| TCP | 10250 | Kubelet API | Self, Control plane |
| TCP | 10251 | kube-scheduler | Self |
| TCP | 10252 | kube-controller-manager | Self |