Kubernetes dashboard not showing up outside

Question

I was following a blog posted by Edureka to install kubernetes on a 2 node cluster (one master and 2 nodes). Everything went fine, and when I use curl to access dashboard I am getting html code response. But I have a requirement of accessing this dashboard using the private IP of this VM internally within the corporate network. I can easily SSH to this VM if I am connected to a VPN, so should be able to access this dashboard too.

Since I am using Ubuntu 16.04 server, I don't have a browser to access the dashboard internally and so, would require the kube dashboard through private IP. Here are some results for the commands I fired after googling:

admin@master:~$ kubectl -n kube-system get service kubernetes-dashboard

NAME                   TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE

kubernetes-dashboard   ClusterIP   10.101.84.169   <none>        443/TCP   23h

admin@master:~$ kubectl describe svc kubernetes-dashboard -n kube-system

Name:              kubernetes-dashboard

Namespace:         kube-system

Labels:            k8s-app=kubernetes-dashboard

Annotations:       <none>

Selector:          k8s-app=kubernetes-dashboard

Type:              ClusterIP

IP:                10.101.84.169

Port:              <unset>  443/TCP

TargetPort:        8443/TCP

Endpoints:         10.0.10.7:8443

Session Affinity:  None

Events:            <none>

Can someone please help me at the earliest.?

Answer 1

https://github.com/kubernetes/dashboard/wiki/Accessing-Dashboard---1.7.X-and-above

Comments

I did try that, but still ext IP is showing none.

Answer 2

You can use kubectl forward or proxy for temporary show dashboard on time that you want. In my opinion. Kubernetes's dashboard shouldn't show all the time.

Answer 3

Hey @Vysakh, you've used the service type as ClusterIP. When you use clusterIP, you services include the dashboard will only be visible inside your cluster. Use service type as NodePort or LoadBalancer to get an external IP.

Answer 4

In dashboard yaml, change cluster ip to nodeip, or you can forward it via proxy

Comments

[root@com-kube-master ~]# kubectl describe svc kubernetes-dashboard -n kube-system
Error from server (NotFound): services "kubernetes-dashboard" not found
[root@com-kube-master ~]# kubectl get pods --all-namespaces
NAMESPACE              NAME                                                         READY   STATUS    RESTARTS   AGE
kube-system            coredns-5c98db65d4-2cz5w                                     1/1     Running   0          18h
kube-system            coredns-5c98db65d4-v644r                                     1/1     Running   0          18h
kube-system            etcd-com-kube-master.nonprod.hclpnp.com                      1/1     Running   0          18h
kube-system            kube-apiserver-com-kube-master.nonprod.hclpnp.com            1/1     Running   0          18h
kube-system            kube-controller-manager-com-kube-master.nonprod.hclpnp.com   1/1     Running   13         18h
kube-system            kube-proxy-h5mnd                                             1/1     Running   0          164m
kube-system            kube-proxy-j4tqm                                             1/1     Running   0          18h
kube-system            kube-proxy-klfpg                                             1/1     Running   0          3h32m
kube-system            kube-proxy-nvdhq                                             1/1     Running   0          168m
kube-system            kube-scheduler-com-kube-master.nonprod.hclpnp.com            1/1     Running   13         18h
kube-system            weave-net-f5xrq                                              2/2     Running   0          18h
kube-system            weave-net-jbxsg                                              2/2     Running   0          164m
kube-system            weave-net-lnql5                                              2/2     Running   0          168m
kube-system            weave-net-pgh79                                              2/2     Running   0          3h32m
kubernetes-dashboard   dashboard-metrics-scraper-fb986f88d-p84ql                    1/1     Running   0          163m
kubernetes-dashboard   kubernetes-dashboard-6bb65fcc49-hgwbf                        1/1     Running   0          163m
[root@com-kube-master ~]#

---

You have mention the service name which is kubernetes-dashboard-6bb65fcc49-hgwbf in this case. So your command will be:

 kubectl describe svc kubernetes-dashboard-6bb65fcc49-hgwbf -n kube-system