What is kubernetes dashboard?

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What is kubernetes dashboard?

Kubernetes Dashboard is a general purpose, web-based UI for Kubernetes clusters. It allows users to manage applications running in the cluster and troubleshoot them, as well as manage the cluster itself.

Let's deploy kubernetes dashboard

1. Install kubernetes dashboard pod

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

2. Create a service account yaml named admin-user-service-account.yaml

apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin-user
  namespace: kubernetes-dashboard

2. Create a cluster role binding yaml named admin-user-cluster-role-binding.yaml

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: kubernetes-dashboard

3. Apply the yaml files

kubectl apply -f admin-user-service-account.yaml
kubectl apply -f admin-user-cluster-role-binding.yaml

4. Get the token

kubectl -n kubernetes-dashboard create serviceaccount admin-user

IMPORTANT NOTE VERSION 1.24+ - Before this version, when you create a service account, it will create a token for this service account automatically. - After this version, when you create a service account, it will not create a token for this service account automatically. You need to create a secret object for this service account manually. Like below:

kubectl create secret token <service-account-name>

• Record the token, we will use it later.

5. Create a proxy to access the dashboard

• This command means
  • port-forward create a port to transfor.
  • -n kubernetes-dashboard specify which service we are going to transfer.
  • 8080:443 specify that we are going to let our 8080 transfer to kubernetes-dashboard 443 port in kubernetes cluster.

kubectl port-forward -n kubernetes-dashboard service/kubernetes-dashboard 8080:443

6. Access the dashboard

• Open the browser and access https://localhost:8080
• Paste the token from previous output.

wala, we can access the dashboard now.