Exposing kubernetes dashboard via using nodeport for public access in k3s.

March 23, 2023 kapilnakhwa

I've already blogged about adding in a kubernetes dashboard in my blog for adding in k3s. I now did not liked to have to open up a proxy everytime I needed to enter the dashboard. So I changed the configuration in my cluster.
Check if kubernetes-dashboard is present and running.

kubectl get svc -n kubernetes-dashboard

If yes, let's change the configuration so that we can access our k3s kubernetes dashboard via port .

kubectl edit svc kubernetes-dashboard -n kubernetes-dashboard

Here is the current default configuration.

# Please edit the object below. Lines beginning with a '#' will be ignored,
# and an empty file will abort the edit. If an error occurs while saving this file will be
# reopened with the relevant failures.
#
apiVersion: v1
kind: Service
metadata:
  creationTimestamp: "2023-03-23T05:16:48Z"
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
  resourceVersion: "26202"
  uid: fda2b071-819e-4cd9-80c2-33e5dbe97bc4
spec:
  clusterIP: 10.43.40.104
  clusterIPs:
  - 10.43.40.104
  externalTrafficPolicy: Cluster
  internalTrafficPolicy: Cluster
  ipFamilies:
  - IPv4
  ipFamilyPolicy: SingleStack
  ports:
  - nodePort: 31126
    port: 443
    protocol: TCP
    targetPort: 8443
  selector:
    k8s-app: kubernetes-dashboard
  sessionAffinity: None
  type: ClusterIP
status:
  loadBalancer: {}

Note the spec.type to be 'ClusterIP' , Let's change that to NodePort , save and quit.
Let's see the node port the kubernetes dashboard is now running at.

kubectl get svc kubernetes-dashboard -n kubernetes-dashboard

Screenshot 2023-03-23 at 11.30.23.png 64.9 KB

Take note of the port , In my case it is 31126. Might be different for you .
Browse to https://YOUR_IP:31126 and you should be able to see kubernetes dashboard .

Screenshot 2023-03-23 at 11.31.38.png 179 KB

To generate token for sign in , Run the following.

kubectl -n kubernetes-dashboard create token admin-user

You should be able to view the kubernetes dashboard . Voila,