Kubernetes, an open-source container orchestration platform, has become the go-to solution for managing containerized applications at scale. While Kubernetes provides powerful command-line tools for managing clusters, sometimes a visual interface can make monitoring and managing your deployments even easier. Kubernetes Dashboard is a web-based user interface that allows you to visualize and interact with your Kubernetes clusters.

In this blog post, we will walk you through the process of installing and using Kubernetes Dashboard step-by-step, empowering you to streamline your Kubernetes management tasks.

Prerequisites

Before installing Kubernetes Dashboard, ensure that you have a running Kubernetes cluster and have the necessary administrative access.

Installing Kubernetes Dashboard

The easy way to install Kubernetes dashboard for your cluster is via helm chart. Kubernetes Dashboard now has a dependency on cert-manager and nginx-ingress-controller. Fortunately, these dependencies can be automatically installed using the Helm chart. However, if you already have these components installed, you can disable their installation by setting the flags –set=nginx.enabled=false and –set=cert-manager.enabled=false when installing the chart.

Without any further delay, let’s jump into installation steps,

1 ) Install Helm

Access your cluster’s master node using a terminal or command prompt. Install helm if not installed. Run the following commands.

$ curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
$ chmod 700 get_helm.sh
$ ./get_helm.sh

Install-Helm-on-K8s-master-node

2) Add Kubernetes Dashboard Helm Repository

Run following helm command to add dashboard repository,

$ helm repo add kubernetes-dashboard https://kubernetes.github.io/dashboard/
$ helm repo list

Helm-Repo-Kubernetes-Dashboard

3) Install Kubernetes Dashboard

To install Kubernetes dashboard using helm, run following command,

$ helm upgrade --install kubernetes-dashboard kubernetes-dashboard/kubernetes-dashboard --create-namespace --namespace kubernetes-dashboard

Installing-Kubernetes-Dashboard-Using-Helm-Command

Output above confirms dashboard has been deployed in Kubernetes-dashboard namespace. So, in order to access dashboard, run

$ kubectl -n kubernetes-dashboard port-forward svc/kubernetes-dashboard-nginx-controller 8443:443

Port-Forwarding-Kubernetes-Dashboard-Kubectl-Command

Now, open the web browser of system on which you have run above command, type following url

https://localhost:8443

Accept-Risk-SSL-Kubernetes-Dashboard

Click on “Accept the Risk and Continue”

Token-For-Kubernetes-Dashboard-Login

As you can see above, we need a token to login. So, let’s generate the required token in the next step.

4)  Generate Token for Kubernetes Dashboard

Open one more ssh session to master node and create a service account and assign required permissions using following yaml file,

$ vi k8s-dashboard-account.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin-user
  namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: admin-user
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: admin-user
  namespace: kube-system

save and exit the file

Next create service account by running following command

$ kubectl create -f k8s-dashboard-account.yaml
serviceaccount/admin-user created
clusterrolebinding.rbac.authorization.k8s.io/admin-user created
$

Now, generate the token for admin-user, run

$ kubectl -n kube-system  create token admin-user

Generate-Token-K8s-Dashboard-kubectl-Command

Copy this token and head back to browser, paste it on “Enter Token” field as shown below,

Click-Signin-After-entering-token-kubernetes-dashboard

Click on “Sign in”

5) Access Kubernetes Dashboard

When we click on “Sign in” in above then we will get the following dashboard,

Kubernetes-Dashboard-Overview-Ubuntu

Great, you are now logged in to the Kubernetes Dashboard. Here are a few key features and functionalities to explore:

  • Cluster Overview: Gain an overview of your cluster’s health, resource utilization, and running pods.
  • Workloads: View and manage your deployments, replica sets, stateful sets, and daemon sets.
  • Services: Monitor and manage your services, including load balancers and external endpoints.
  • Configurations: Explore your config maps, secrets, and persistent volume claims.
  • Storage: Manage persistent volumes and storage classes.
  • Namespaces: Switch between namespaces to view and manage resources across different projects or teams.

That’s all from this post, I hope you have found it useful and informative. Kindly do post your queries and feedback in below comments section.

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