The Ultimate Kubernetes Interview questions for Kubernetes Certification (CKA)

If you are preparing for a DevOps interview or for Kubernetes Interview questions or Kubernetes Certification, consider marrying this Ultimate Kubernetes Interview questions for Kubernetes Certification (CKA) tutorial, which will help you forever in any Kubernetes interview.

Without further delay, let’s get into this Kubernetes Interview questions for Kubernetes Certification (CKA).

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Table of Content

Related: Kubernetes Tutorial for Kubernetes Certification [PART-1]

Related: Kubernetes Tutorial for Kubernetes Certification [PART-2]

PAPER-1

Q1. How to create kubernetes namespace using kubectl command.

Answer: Kubernetes namespace can be created using the kubectl create command.

kubectl create namespace namespace-name

Q2. How to create a kubernetes namespace named my-namespace using a manifest file?

Answer: Create the file named namespace.yaml as shown below.

apiVersion: v1
kind: Namespace
metadata: 
    name: my-namespace
  • Now execute the below kubectl command as shown below.
kubectl create -f namespace.yaml
Creating the Kubernetes namespace(my-namespace)
Creating the Kubernetes namespace(my-namespace)

Q3. How to switch from one Kubernetes namespace to another Kubernetes namespace ?

Answer: To switch beetween two kubernetes namespaces run the kubectl config set command.

kubectl config set-context $(kubectl config current-context) --namespace my-namespace2
switch from one Kubernetes namespace to other Kubernetes namespace
switch from one Kubernetes namespace to another Kubernetes namespace

Q4. How To List the Kubernetes namespaces in a Kubernetes cluster ?

Answer: Run the kubectl get command as shown below.

kubectl get namespaces

Q5. How to create the Kubernetes namespaces in a Kubernetes cluster ?

Answer: Execute the below kubectl command.

kubectl create namespace namespace-name

Q6. To delete kubernetes namespace using kubectl command ?

Answer: kubectl delete command allows you to delete the Kubernetes API objects.

kubectl delete namespaces namespace-name

Q7. How to create a new Kubernetes pod with nginx image?

Answer: Use Kubectl run command to launch a new Kubernetes Pod.

kubectl run nginx-pod --image=nginx
Running kubectl run command to create a new Pod.
Running kubectl run command to create a new Pod.

Q8. How to Create a new Kubernetes pod in different Kubernetes namespace?

Answer: Use Kubectl run command to launch a new Kubernetes Pod followed by namspace flag.

kubectl run nginx-pod --image=nginx --namespace=kube-system
Creating a new Kubernetes pod in different Kubernetes namespace
Creating a new Kubernetes pod in a different Kubernetes namespace

Q9. How to check the running Kubernetes pods in the Kubernetes cluster?

Answer:

kubectl get pods
Checking the running Kubernetes pods
Checking the running Kubernetes pods

Q10. How to check the running Kubernetes pods in the Kubernetes cluster in different kubernetes namespace?

Answer:

 kubectl get pods  --namespace=kube-system | grep nginx
Checking the running Kubernetes pods in different kubernetes namespace
Checking the running Kubernetes pods in different kubernetes namespace

Q11. How to check the Docker image name for a running Kubernetes pod and get all the details?

Answer: Execute the kubernetes describe command.

kubectl describe pod-name
Describing the kubernetes Pod
Describing the kubernetes Pod

Q12. How to Check the name of the Kubernetes node on which Kubernetes pods are deployed?

Answer:

kubectl get pods -o wide
Checking the name of the Kubernetes node
Checking the name of the Kubernetes node

Q13. How to check the details of docker containers in the Kubernetes pod ?

Answer:

kubectl describe pod pod-name
Checking the details of docker containers
Checking the details of docker containers

Q14. What does READY status signify in kubectl command output?

Answer: The READY status gives the stats of the number of running containers and the total containers in the cluster.

kubectl get pod -o wide command
Checking the Ready Status
Checking the Ready Status

Q15. How to delete the Kubernetes pod in the kubernetes cluster?

Answer: Use the kubectl delete command.

kubetcl delete pod webapp
Deleting the Kubernetes pod
Deleting the Kubernetes pod

Q16. How to edit the Docker image of the container in the Kubernetes Pod ?

Answer: Use the Kubernetes edit command.

kubectl edit pod webapp

Q17. How to Create a manifest file to launch a Kubernetes pod without actually creating the Kubernetes pod?

Answer: –dry-run=client flag should be used

kubectl run nginx --image=nginx --dry-run=client -o yaml > my-file.yaml
launch a Kubernetes pod without actually creating the Kubernetes pod
launch a Kubernetes pod without actually creating the Kubernetes pod

Q18. How to check the number of Kubernetes Replicasets running in the kubernetes cluster ?

Answer: Run Kubectl get command.

kubectl get rs
kubectl get replicasets
Checking the Replicasets in kubernetes cluster
Checking the Replicasets in kubernetes cluster

Q19. How to find the correct version of the Kubernetes Replicaset or in Kubernetes deployments ?

Answer:

kubectl explain rs | grep VERSION
Finding the Kubernetes replicaset or kubernetes deployment version
Finding the Kubernetes replicaset or kubernetes deployment version

Q20. How to delete the Kubernetes Replicasets in the Kubernetes cluster?

Answer: Run the below command.

kubectl delete rs replicaset-1 replicaset-2
delete the Kubernetes Replicasets
delete the Kubernetes Replicasets

Q21. How to edit the Kubernetes Replicasets in the Kubernetes cluster?

Answer: Run the below command.

kubectl edit rs replicaset-name

Q22. How to Scale the Kubernetes Replicasets in the Kubernetes cluster?

Answer: To scale the Kubernetes Replicasets you can use any of three below commands.

kubectl scale  --replicas=5 rs rs_name
kubectl scale --replicas=6 -f file.yml # Doesnt change the number of replicas in the file.
kubectl replace -f file.yml

Q23. How to Create the Kubernetes deployment in the kubernetes Cluster?

Answer: Use the kubernetes create command.

kubectl create deployment nginx-deployment --image=nginx
Create the Kubernetes deployment
Creating the Kubernetes deployment
kubectl create deployment my-deployment --image=httpd:2.4-alpine
Create the Kubernetes deployment
Creating the Kubernetes deployment

Q24. How to Scale the Kubernetes deployment in the kubernetes Cluster?

Answer:

kubectl scale deployment my-deployment --replicas=3
Scaling the Kubernetes deployment
Scaling the Kubernetes deployment

Q25. How to Edit the Kubernetes deployment in the kubernetes Cluster?

Answer:

kubectl edit deployment my-deployment
Editing the Kubernetes deployment
Editing the Kubernetes deployment

Q26. How to Describe the Kubernetes deployment in the kubernetes Cluster?

Answer:

kubectl describe deployment my-deployment
 Describing the Kubernetes deployment
Describing the Kubernetes deployment

Q27. How to pause the Kubernetes deployment in the kubernetes Cluster?

Answer: Use the Kubectl rollout command.

kubectl rollout pause deployment.v1.apps/my-deployment
Pausing the kubernetes deployment
Pausing the kubernetes deployment
Viewing the Paused kubernetes deployment
Viewing the Paused kubernetes deployment

Q28. How to resume the Kubernetes deployment in the kubernetes Cluster?

Answer:

kubectl rollout resume deployment.v1.apps/my-deployment
Resuming the Kubernetes deployment
Resuming the Kubernetes deployment

Q29. How to check the history the Kubernetes deployment in the kubernetes Cluster?

Answer:

For Incorrect Kubernetes deployments such as an incorrect image the deployment crashes. Make sure to stop the deployment using cltr + c and execute rollout history command.

kubectl rollout history deployment.v1.apps/nginx-deployment

Q30. How to rollback to the previous kubernetes deployment version which was stable in the kubernetes Cluster?

Answer: Run the undo command as shown below.

kubectl rollout undo deployment.v1.apps/nginx-deployment

Q31. How to Create a manifest file to create a Kubernetes deployment without actually creating the Kubernetes deployment?

Answer: use the –dry-run=client command.

kubectl create deployment nginx --image=nginx --dry-run=client -o yaml
Creating the kubernetes deployment manifest file
Creating the kubernetes deployment manifest file

Q32. How to Create a manifest file to create a Kubernetes deployment with Replicasets without actually creating the Kubernetes deployment?

Answer: use the –dry-run=client command.

kubectl create deployment nginx --image=nginx --replicas=4 --dry-run=client -o yaml
Creating the kubernetes deployment with replicasets with manifest file
Creating the kubernetes deployment with replicasets with manifest file

Q33. How to Create a Kubernetes service using manifest file ?

Answer: Create the kubernetes file and then run kubernetes create commnad.

kubectl create -f service-defination.yml

Q34. How to Check running Kubernetes service in the kubernetes cluster?

Answer: To check the running Kubernetes services in the kubernetes cluster run below command.

kubectl get svc
kubectl get services
Checking Kubernetes service in kubernetes cluster
Checking Kubernetes service in kubernetes cluster

Q35. How to Check details of kubernetes service such as targetport, labels, endpoints in the kubernetes cluster?

Answer:

kubectl describe service 
Describing the Kubernetes service in kubernetes cluster
Describing the Kubernetes service in kubernetes cluster

Q36. How to Create a Kubernetes NodePort service in the kubernetes cluster?

Answer: Run kubectl expose command.

kubectl expose deployment nginx-deploy --name=my-service --target-port=8080 --type=NodePort --port=8080 -o yaml -n default  # Make sure to add NodePort seperately
 Kubernetes NodePort service
Kubernetes NodePort service

Q37. How to Create a Kubernetes ClusterIP service named nginx-pod running on port 6379 in the kubernetes cluster?

Answer: Create a pod then expose the Pod using kubectl expose command.

kubectl run nginx --image=nginx --namespace=kube-system
kubectl expose pod --port=6379 --name nginx-pod -o yaml --namespace=kube-system
Creating the Kubernetes Pods
Creating the Kubernetes Pods
 Kubernetes ClusterIP service
Kubernetes ClusterIP service
Verifying the Kubernetes ClusterIP service
Verifying the Kubernetes ClusterIP service

Q38. How to Create a Kubernetes ClusterIP service named redis-service in the kubernetes cluster?

Answer:

kubectl create service clusterip --tcp=6379:6379  redis-service --dry-run=client -o yaml
Creating the Kubernetes ClusterIP
Creating the Kubernetes ClusterIP

Q39. How to Create a Kubernetes NodePort service named redis-service in the kubernetes cluster?

Answer: kubectl expose command.

kubectl create service nodeport --tcp=6379:6379  redis-service  -o yaml
Creating the Kubernetes NodePort
Creating the Kubernetes NodePort

Q40. How to save a Kubernetes manifest file while creating a Kubernetes depployment in the kubernetes cluster?

Answer: Use > nginx-deployment.yaml

kubectl create deployment nginx --image=nginx --dry-run=client -o yaml > nginx-deployment.yaml

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Related: Kubernetes Tutorial for Kubernetes Certification [PART-1]

Related: Kubernetes Tutorial for Kubernetes Certification [PART-2]

Conclusion

In this Ultimate guide (Kubernetes Interview questions for Kubernetes Certification (CKA), you had a chance to revise everything you needed to pass and crack the Kubernetes interview.

Now that you have sound knowledge of Kubernetes and are ready for your upcoming interview.

Kubernetes in Cloud: Getting Started with Amazon EKS or AWS EKS

Kubernetes is a scalable open-source tool that manages container orchestration extremely effectively, but does Kubernetes work in Cloud as well? Yes, it does work with the most widely used service AWS EKS which stands for Amazon Elastic Kubernetes.

Yes, you can manage Kubernetes in public clouds, such as GCP, AWS, etc to deploy and scale containerized applications.

In this tutorial, you will learn the basics of Kubernetes, Amazon EKS, or AWS EKS.

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Table of Content

  1. What is Kubernetes?
  2. kubernetes architecture and kubernetes components
  3. What is AWS EKS (Amazon EKS) ?
  4. How does AWS EKS service work?
  5. Prerequisites
  6. AWS EKS Clusters components
  7. AWS EKS Control Pannel
  8. Workload nodes
  9. How to create aws eks cluster in AWS EKS
  10. AWS EKS cluster setup: Additional nodes on AWS EKS cluster
  11. Connecting AWS EKS Cluster using aws eks update kubeconfig
  12. How to Install Kubectl on Windows machines
  13. Install Kubectl on Ubuntu machine
  14. Conclusion

What is Kubernetes?

Kubernetes is an open-source container orchestration engine for automating deployments, scaling, and managing the container’s applications. Kubernetes is an open-source Google-based tool. It is also known as k8s. It can run on any platform, such as on-premises, hybrid, or public cloud. Some of the features of Kubernetes are:

  • kubernetes cluster scales when needed and is load balanced.
  • kubernetes cluster has the capability to self-heal and automatically provide rollbacks.
  • kubernetes allows you to store configurations, secrets, or passwords.
  • Kubernetes can be mounted with various stores such as EFS and local storage.
  • Kubernetes works well with networking components such as NFS, locker, etc.

kubernetes architecture and kubernetes components

When you Install Kubernetes, you create a Kubernetes cluster that mainly contains two components master or the controller nodes and worker nodes. Nodes are the machines that contain their own Linux environment, which could be a virtual machine or either physical machine.

The application and services are deployed in the containers within the Pods inside the worker nodes. Pods contain one or more docker containers. When a Pod runs multiple containers, all the containers are considered a single entity and share the Node resources.

Bird-eye view of kubernetes cluster
Bird-eye view of Kubernetes cluster
  • Pod: Pods are groups of containers that have shared storage and network.
  • Service: Services are used when you want to expose the application outside of your local environment.
  • Ingress: Ingress helps in exposing http/https routes from the outside world to the services in your cluster.
  • ConfigMap: Pod consumes configmap as environmental values or command-line arguments in the configuration file.
  • Secrets: Secrets as the name suggest stores sensitive information such as password, OAuth tokens, SSH keys, etc.
  • Volumes: These are persistent storage for containers.
  • Deployment: Deployment is an additional layer that helps to define how Pod and containers should be created using yaml files.
kubernetes components
kubernetes components

What is AWS EKS (Amazon EKS) ?

Amazon provides an AWS managed service AWS EKS that allows hosting Kubernetes without needing you to install, operate, and maintain Kubernetes control plane or nodes, services, etc. Some of the features of AWS EKS are:

  • AWS EKS expands and scales Kubernetes control plane across many availability zones so that there is always a high availability.
  • It automatically scales and fix control plane instances if any instance is impacted or unhealthy node.
  • It is integrated with various other AWS services such as IAM for authentication, VPC for Isolation , ECR for container images & ELB for load distribution etc.
  • It is very secure service.

How does AWS EKS service work?

Previously you learned what is AWS EKS now; let’s learn how AWS EKS works. The first step in AWS EKS is to create an EKS cluster using AWS CLI or AWS Management console by specifying whether you need self-managed AWS EC2 instance or deploy workloads to AWS Fargate, which automatically manages everything.

Further, once the Kubernetes cluster is set up, connect to the cluster using kubectl commands and deploy applications.

AWS EKS cluster using EC2 or AWS Fargate
AWS EKS cluster using EC2 or AWS Fargate

Prerequisites

  • You must have AWS account in order to setup cluster in AWS EKS with admin rights on AWS EKS and IAM. If you don’t have AWS account, please create a account from here AWS account.
  • AWS CLI installed. If you don’t have it already install it from here.
  • Ubuntu 16 or plus version machine.
  • Windows 7 or plus machine.

AWS EKS Clusters components

Now that you have a basic idea of the AWS EKS cluster, it is important to know the components of AWS EKS Clusters. Let’s discuss each of them now.

AWS EKS Control Pannel

AWS EKS control plane is not shared between any AWS account or other EKS clusters. Control Panel contains at least two API servers exposed via Amazon EKS endpoint and three etcd instances associated with Amazon EBS volumes.

Amazon EKS automatically monitors the load on the control panel and removes unhealthy instances when needed. Amazon EKS uses Amazon VPC network policies to restrict traffic between control plane components within a single cluster.

AWS EKS nodes

Amazon EKS nodes are registered with the control plane via the API server endpoint and a certificate file created for your cluster. Your Amazon EKS cluster can schedule pods on AWS EKS nodes which may be self-managed, Amazon EKS Managed node groups, or AWS Fargate.

Self-managed nodes

Self-managed nodes are Windows and Linux machines that are managed by you. The nodes contain pods that share kernel runtime environments. Also, if the pod requires more resources than requested, then additional resources are aligned by you, such as memory or CPU, and you assign IP addresses from a different CIDR block than the IP address assigned to the node.

Amazon EKS Managed node groups

Previously you learned about self-managed nodes managed by you but in the case of AWS EKS managed node groups, you don’t need to provision or register Amazon EC2 instances. All the managed nodes are part of the Amazon EC2 auto-scaling group.

AWS takes care of everything starting from managing nodes, scaling, and aligning the resources such as IP address, CPU, memory. Although everything is managed by AWS still, you are allowed to SSH into the nodes. Like self-managed nodes, the nodes containing the pods share the same kernel.

You can add a managed node group to new or existing clusters using the Amazon EKS console, eksctl, AWS CLI, AWS API, or AWS Cloud Formation. Amazon EKS managed node groups can be launched in public and private subnets. You can create multiple managed node groups within a single cluster.

AWS Fargate

AWS Fargate is a serverless technology that you can use with Amazon ECS to run containers without managing servers or clusters of Amazon EC2 instances. With Fargate, you no longer have to provision, configure, or scale clusters of virtual machines to run containers. But with AWS Fargate, the pod has a dedicated kernel. As there are no nodes, you cannot SSH into the node.

Kubernetes cluster architecture
Kubernetes cluster architecture

Workload nodes

The workload is a node containing applications running on a Kubernetes cluster. Every workload controls pods. There are five types of workloads on a cluster.

  • Deployment: Ensures that a specific number of pods run and includes logic to deploy changes. Deployments can be rolled back and stopped.
  • ReplicaSet: Ensures that a specific number of pods run. Can be controlled by deployments. Replicasets cannot be rolled back and stopped.
  • StatefulSet: Manages the deployment of stateful applications where you need persistant storage.
  • DaemonSet  Ensures that a copy of a pod runs on all (or some) nodes in the cluster
  • Job: Creates one or more pods and ensures that a specified number of them run to completion

By default, Amazon EKS clusters have three workloads:

  • coredns: For name resolution for all pods in the cluster.
  • aws-node To provide VPC networking functionality to the pods and nodes in your cluster.
  • kube-proxy:To manage network rules on nodes that enable networking communication to your pods.

How to create AWS EKS cluster in AWS EKS

Now that you have an idea about the AWS EKS cluster and its components. Let’s learn how to create an AWS EKS cluster and set up Amazon EKS using the Amazon management console, and AWS CLI commands.

  • Make a note of VPC that you want to choose to create the AWS EKS cluster.
Choosing the correct AWS VPC
Choosing the correct AWS VPC
  • Next on IAM page create a IAM policy with full EKS permissions.
Creating an IAM Policy
Creating an IAM Policy
  • Click on Create policy and then click on choose service as EKS.
Choosing the configuration on IAM Policy
Choosing the configuration on IAM Policy
  • Now provide the name to the policy and click create.
Reviewing the details and creating the IAM Policy
Reviewing the details and creating the IAM Policy
IAM Policy created successfully
IAM Policy created successfully
  • Next, navigate to IAM role and create a role.
Choosing the Create role button
Choosing the Create role button
  • Now in role choose AWS EKS service and then select EKS cluster as your use case:
Configure the IAM role
Configure the IAM role
Selecting the use case in IAM role
Selecting the use case in IAM role
  • Further specify the name to role and then click on create role.
Creating the IAM role
Creating the IAM role
  • Now attach a IAM policy that you created previously and EKSclusterpolicy to IAM role.
Attaching the IAM policy on IAM role
Attaching the IAM policy on the IAM role
Adding permission on the IAM role
Adding permission on the IAM role
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "AWS": "*",
        "Service": "eks.amazonaws.com"
      },
      "Action": "sts:AssumeRole"
    }
  ]
}
Adding the Trusted entities
Adding the Trusted entities

Now that you have the IAM role created for AWS EKS Cluster and IAM policy attachment. Let’s dive into the creation of the Kubernetes cluster.

  • Now navigate to AWS EKS console and click on Create cluster
creating AWS EKS Cluster
creating AWS EKS Cluster
  • Next, add all the configurations related to cluster as shown below.
Configure AWS EKS Cluster
Configure AWS EKS Cluster
  • Furthe provide networking details such as VPC, subnets etc. You may skip subnets as of now.
Configure network settings of AWS EKS Cluster
Configure network settings of AWS EKS Cluster
  • Keep hitting NEXT and finally click on Create cluster. It may take few minutes for cluster to come up.
AWS EKS Cluster creation is in progress
AWS EKS Cluster creation is in progress
  • Lets verify if cluster is up and active. As you can see below
Verifying the AWS EKS CLuster
Verifying the AWS EKS CLuster

Now, the Kubernetes cluster on AWS EKS is successfully created. Now let’s initiate communication from the client we installed to the Kubernetes cluster.

AWS EKS cluster setup: Additional nodes on AWS EKS cluster

As discussed previously, the Amazon EKS cluster can schedule pods on any combination of self-managed nodes, Amazon EKS managed nodes, and AWS Fargate. In this section, let’s learn if you can add additional using the Amazon EKS Managed node group.

To create Managed node group using AWS Management Console.

  • Navigate to the Amazon EKS page ➔ Configuration tab ➔ Compute tab ➔ Add Node Group and provide all the details such as name, node IAM role that you created previously.
Checking the AWS EKS Node groups
Checking the AWS EKS Node groups

Further specify Instance type, Capacity type, networking details such as VPC details, subnets, SSH Keys details, and click create. As you can see below, the nodes are added successfully by creating a new group.

Verifying the new nodes in Checking in the AWS EKS Node groups
Verifying the new nodes in Checking in the AWS EKS Node groups
  • To find node details from your machine run the below commands.
aws eks update-kubeconfig --region us-east-2 --name "YOUR_CLUSTER_NAME"
kubectl get nodes --watch
AWS EKS nodes details
AWS EKS nodes details

To create Fargate(Linux) nodes you need to create a Fargate profile as when any pod gets deployed in Fargate it first matches the desired configuration from the profile then it gets deployed. The configuration contains permissions such as the ability of the pod to get the container’s image from ECR etc. To create a Fargate profile click here.

Connecting AWS EKS Cluster using aws eks update kubeconfig

You have created and set up the AWS EKS cluster successfully and learned how you can add additional nodes on the AWS EKS cluster, which is great. But do you know how to connect the AWS EKS cluster from your local machine? Let’s learn how to connect the AWS EKS cluster using eks update kubeconfig.

Make sure to configure AWS credentials on local machine to match with same IAM user or IAM role that you used while creating the AWS EKS cluster.

  • Open Visual studio or GIT bash or command prompt.
  • Now, configure kubeconfig to make communication from your local machine to Kubernetes cluster in AWS EKS
aws eks update-kubeconfig --region us-east-2 --name Myekscluster
aws eks update kubeconfig command
aws eks update kubeconfig command
  • Finally test the communication between local machine and cluster after adding the configurations. Great you can see the connectivity from our local machine to Kubernetes cluster !!
kubectl get svc
Verifying the connectivity from local machine to AWS EKS cluster
Verifying the connectivity from local machine to AWS EKS cluster

How to Install Kubectl on Windows machines

Now that you have some basic idea of the What is EKS cluster, it is also managed by the kubectl tool. Although you can manage the AWS EKS cluster manually with the AWS management console but running kubectl is easy and straightforward. Let’s dive into how to install kubectl on a windows machine.

  • Open PowerShell on your windows machine and run the below curl command the command on any folder of your choice. The below command will download the kubectl binary on windows machine.
curl -o kubectl.exe https://amazon-eks.s3.us-west-2.amazonaws.com/1.19.6/2021-01-05/bin/windows/amd64/kubectl.exe
  • Now verify in the C drive if binary file has been downloaded succesfully.
Downloading the kubectl binary
Downloading the kubectl binary
  • Next run kubectl binary file i.e kubectl.exe.
Running kubectl binary
Running kubectl binary
  • Verify if Kubectl is properly installed by running kubectl version command.
kubectl version --short --client
Verifying the kubectl version
Verifying the kubectl version

Install Kubectl on Ubuntu machine

Previously you learned how to install kubectl on a windows machine but let’s quickly check out the how-to install Kubectl on an Ubuntu machine.

  • Login to the Ubuntu machine using SSH client.
  • Download the kubectl binary using curl command on ubuntu machine under home directory ie. $HOME
curl -o kubectl https://amazon-eks.s3.us-west-2.amazonaws.com/1.19.6/2021-01-05/bin/linux/amd64/kubectl
Installing Kubectl on Ubuntu machine
Installing Kubectl on Ubuntu machine
  • Next, after installing kubectl you will need to grant execute permissions to the binary to start it.
chmod +x ./kubectl
  • Copy the binary to a folder in your PATH so that kubectl command can run from anywhere on your machine.
mkdir -p $HOME/bin && cp ./kubectl $HOME/bin/kubectl && export PATH=$PATH:$HOME/bin
  • Verify the kubectl version on ubuntu machine again by running kubectl version.
kubectl version --short --client
Kubectl version on Ubuntu machine
Kubectl version on Ubuntu machine

Conclusion

In this tutorial, you learned Kubernetes, Amazon Elastic Kubernetes service, ie. AWS EKS, how to install Kubernetes client kubectl on Windows and Linux machine and finally created AWS EKS cluster and connected the same using kubectl client.

Now that you have a newly launched AWS EKS cluster setup, what do you plan to deploy on it?