Kubernetes- Dashboard UI

 Dashboard is a web-based Kubernetes user interface. You can use Dashboard to deploy containerized applications to a Kubernetes cluster, troubleshoot your containerized application, and manage the cluster resources. You can use Dashboard to get an overview of applications running on your cluster, as well as for creating or modifying individual Kubernetes resources (such as Deployments, Jobs, DaemonSets, etc). For example, you can scale a Deployment, initiate a rolling update, restart a pod or deploy new applications using a deploy wizard.

Dashboard also provides information on the state of Kubernetes resources in your cluster and on any errors that may have occurred.

LAB

kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.7.0/aio/deploy/recommended.yaml

kubectl get svc -n kubernetes-dashboard

kubectl edit svc kubernetes-dashboard -n kubernetes-dashboard

#Modify the type: ClusterIP to NodePort

kubectl get svc -n kubernetes-dashboard

# You will find a port number which is in between 30K to 32767

Take the public IP or localhost and use the port number to visit the dashboard on the browser

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Create service account

    kubectl create serviceaccount cluster-admin-dashboard-sa

Bind ClusterAdmin role to the service account

kubectl create clusterrolebinding cluster-admin-dashboard-sa --clusterrole=cluster-admin --serviceaccount=default:cluster-admin-dashboard-sa

Create a Secret for sa

apiVersion: v1
kind: Secret
metadata:
  name: secret-sa-cluster-admin-dashboard-sa
  annotations:
    kubernetes.io/service-account.name: "cluster-admin-dashboard-sa"

Create  token

kubectl create token cluster-admin-dashboard-sa

RBAC