Kubernetes service node port range

Filed under: DevOps, Kubernetes, — Tags: --service-node-port-range, kube-apiserver, kubernetes, service-node-port-range — Thomas Sundberg — 2019-02-20

The default node port range for Kubernetes is 30000 - 32767. As it is a default, a reasonable assumption would be that it can be changed. So far so good. However, it turns out that the documentation on how to change the default is hard to find.

kube-apiserver

The port range is controlled by the kube-apiserver which is a pod running inside your Kubernetes cluster. It is created from a pod definition located in /etc/kubernetes/manifests/kube-apiserver.yaml.

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