Code error 403 when trying to access Kubernetes cluster

Question

I've created a kubernetes cluster and all the pods are in running state. But when I try to access the cluster I get a code error.

kubectl cluster info
Kubernetes master is running at https://x.x.x.x:6443
KubeDNS is running at https://x.x.x.x:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy

"status": "Failure",
  "message": "namespaces is forbidden: User \"system:anonymous\" cannot list namespaces at the cluster scope",
  "reason": "Forbidden",
  "details": {
    "kind": "namespaces"
  },
  "code": 403   

All my pods seem to be working fine

kube-system   calico-etcd-6629s                                      1/1       Running   0          5h
kube-system   calico-kube-controllers-675684d4bb-5h28d               1/1       Running   0          5h
kube-system   calico-node-r75wv                                      2/2       Running   0          5h
kube-system   etcd-sp2013a....                                        1/1       Running   0          5h
kube-system   kube-apiserver-sp2013a ...                              1/1       Running   0          5h
kube-system   kube-controller-manager-sp2013a....                     1/1       Running   0          5h
kube-system   kube-dns-6f4....df-fcqvt                               3/3       Running   0          5h
kube-system   kube-proxy-mpf2j                                       1/1       Running   0          5h
kube-system   kube-scheduler-sp2013a......                            1/1       Running   0          5h

Answer 1

You get this error because you're getting blocked by RBAC policies. Basically, RBAC policies set to restrict the resources you use and limits a few of your action. 

There are two possibilities, either you haven't created an RBAC or it's somehow restricting the cluster access.

By default, your clusterrolebinding has system:anonymous set which blocks the cluster access.

Execute the following command, it will set a clusterrole as cluster-admin which will give you the required access.

kubectl create clusterrolebinding cluster-system-anonymous --clusterrole=cluster-admin --user=system:anonymous

For further details, refer to the Kubernetes Course.

Comments

Thank you so much, Sir!

---

{
  "paths": [
    "/api",
    "/api/v1",
    "/apis",
    "/apis/",
    "/apis/admissionregistration.k8s.io",
    "/apis/admissionregistration.k8s.io/v1",
    "/apis/admissionregistration.k8s.io/v1beta1",
    "/apis/apiextensions.k8s.io",
    "/apis/apiextensions.k8s.io/v1",
    "/apis/apiextensions.k8s.io/v1beta1",
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  ]
}

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What you tried to do? Did you get any kind of error? Explain your requirement a little bit. It will be easy to understand.

---

Great, helped me as well. :) Thank you.