Does Kube-API Server Allow Requests on Port 8080?

Problem

• Does Platform9 Managed Kubernetes Kube-API server allows request on port 8080?

Environment

• Platform9 Managed Kubernetes - All Versions

Answer

• There are 2 ports on which a Kubernetes Kube-API server can allow requests, localhost port 8080 and Secure port 443.

• Platform9 Managed Kubernetes Kube-API server allows request only on the secure port 443.

k8s-master Pod snippet

$ kubectl describe po k8s-master-10.28.228.30 -n kube-system

kube-apiserver:
    Container ID:  docker://b25814f93402305a5edf6390814fab3e09f082340eed78b6225aca149e3d4967
    Image:         k8s.gcr.io/kube-apiserver:v1.20.5
    Image ID:      docker-pullable://k8s.gcr.io/kube-apiserver@sha256:e2ca052cbde8532d4c2e613a7fbb3145a5ecbea1bd47ac243877815ed80abb5a
    Port:          <none>
    Host Port:     <none>
    Command:
      kube-apiserver
      --allow-privileged=true
      --anonymous-auth=false
      ...
      --insecure-port=0
      --secure-port=443

Additional Information

For additional information regarding Kube-API server ports please refer to the article Controlling Access to the Kubernetes API.