K8s - Dashboard Setup

1. Download and deploy dashboard.yaml

   wget https://raw.githubusercontent.com/kubernetes/dashboard/v2.4.0/aio/deploy/recommended.yaml
   
   kubectl apply -f dashboard.yaml
   

2. Next step is to check all the resources by the below command

 kubectl get all -n kubernetes-dashboard

1. Change the Dashboard Service type from ClusterIP to NodePort

   kubectl edit service/kubernetes-dashboard -n kubernetes-dashboard
   

   

   change to

   

2. Now, check if the service was changed successfully by giving the following command:

kubectl get svc -n  kubernetes-dashboard

NAME                        TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)         AGE
dashboard-metrics-scraper   ClusterIP   10.96.21.33    <none>        8000/TCP        23m
kubernetes-dashboard        NodePort    10.97.169.90   <none>        443:32321/TCP   23m

1. Now, you can access the dashboard at https://<Your IP>:32321

   example: https://192.168.0.124:32321

2. Create a Service Account to login with Token:

   vim k8s-serviceaccount.yml
   
   #Add the follwing content
   
   #creating a service account with admin-users
   apiVersion: v1
   kind: ServiceAccount
   metadata:
     name: admin-user
     namespace: kubernetes-dashboard
   ---
   #Creating a Service Role Binding
   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
   

   Now,

   kubectl create -f k8s-serviceaccount.yml
   

   1. After successful creation of the service account, perform the below set of commands:

   kubectl get sa -n kubernetes-dashboard
   

   kubectl describe sa admin-user -n kubernetes-dashboard
   

   

   1. Accessing the token:

   kubectl describe secrets dashboard-admin-token-z9jfh -n kubernetes-dashboard
   

   

   Now, copy the token and paste it on the dashboard URL to access Dashboard

   References: https://kubernetes.io/docs/tasks/access-application-cluster/web-ui-dashboard/

quick jump

1. Docker
2. Kubernetes
3. NGINX-WebServer
4. Remote-SSH-VNC
5. Dashboard
6. private docker Images