无法访问 EC2 Kube.netes 仪表板

Question

I followed How can I access to kube.netes dashboard using NodePort in a remote cluster for testing?

My Kube.netes cluster runs in Amazon EC2 instances and cluster services looks like below

$ kubectl get services --all-namespaces
NAMESPACE     NAME                   TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)         AGE
default       kubernetes             ClusterIP   100.64.0.1      <none>        443/TCP         5h54m
kube-system   kube-dns               ClusterIP   100.64.0.10     <none>        53/UDP,53/TCP   5h53m
kube-system   kubernetes-dashboard   NodePort    100.68.178.51   <none>        443:31872/TCP   5h47m

$ kubectl cluster-info
Kubernetes master is running at https://api.selumalai.k8s.com
KubeDNS is running at https://api.selumalai.k8s.com/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy

I have exposed the NodePort at 31872. If I access the dashboard in browser using

$ kubectl  proxy -p 8001 &
$ curl https://api.selumalai.k8s.com:31872

Its loading forever. What am I doing wrong?

Answer 1

You need to add a security group to your instance to allow traffic for port 31872 .

It's explained how to do so here .

If you use kubectl proxy it can be accessed localy only, which is stated in the docs :

...

 kubectl proxy

... The UI can only be accessed from the machine where the command is executed. See kubectl proxy --help for more options.

Also here is a guide from AWS on how to Deploy the Kube.netes Dashboard (web UI) . You can try running a L7 ELB to expose the Dashboard which is explained here .