Kubelet Port 10255 is not available on PMK clusters

Problem

  • netstat doesn't show kubelet port 10255 in LISTEN state on PMK nodes.

$ sudo netstat -anltp | grep 10255$

Environment

  • Platform9 Managed Kubernetes - v4.4 and Higher

  • pf9-kubelet

Cause

Port 10255 is the read-only port for Kubelet. As per the Kubelet doc




--read-only-port

int32

Default: 10255



The read-only port for the Kubelet to serve on with no authentication/authorization (set to 0 to disable). (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)


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Kubelet Port 10255 is not available on PMK clustersProblemEnvironmentCause