How we can use SED command in Linux (Sravani)

How to copy files from one server to another server by using ansible copy module

We have two servers 1.master 2.worker1 create playbook example: play.yml --- - hosts: all tasks: - name: Ansible copy file to remote server copy: src: ~/kube-cluster dest: /root Run ansible playbook ansible-playbook play.yml

Kubernetes interview questions and answers

1.H ow to setup kubernetes dashboard on ubuntu16.04 cluster? To create kubernetes dashboard follow below link https://docs.aws.amazon.com/eks/latest/userguide/dashboard-tutorial.html To deploy the Metrics Server kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/download/v0.3.6/components.yaml kubectl get deployment metrics-server -n kube-system Deploy the dashboard kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0-beta8/aio/deploy/recommended.yaml root@ip-172-31-43-76:~# kubectl get svc -n kubernetes-dashboard NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE dashboard-metrics-scraper ClusterIP 10.102.6.123 <none> 8000/TCP 120m kubernetes-dashboard ...

How to create a user in kubernetes cluster and assign read only permissions

root@ip-172-31-16-42:~# kubectl get secrets NAME TYPE DATA AGE default-token-2m258 kubernetes.io/service-account-token 3 48m root@ip-172-31-16-42:~ # kubectl create serviceaccount readonlyuser serviceaccount/readonlyuser created root@ip-172-31-16-42:~# kubectl create clusterrole readonlyuser --verb=get --verb=list --verb=watch --resource=pods clusterrole.rbac.authorization.k8s.io/readonlyuser created root@ip-172-31-16-42:~ # kubectl create clusterrolebinding readonlyuser --serviceaccount=default:readonlyuser --clusterrole=readonlyuser clusterrolebinding.rbac.authorization.k8s.io/readonlyuser created root@ip-172-31-16-42:~# TOKEN=$(kubectl describe secrets "$(kubectl describe serviceaccount readonlyuser | grep -i Tokens | awk '{print $2}')" | g...

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