Get started with Amazon EKS – eksctl - Amazon EKS

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Get started with Amazon EKS – eksctl

This guide helps you to create all of the required resources to get started with Amazon Elastic Kubernetes Service (Amazon EKS) using eksctl, a simple command line utility for creating and managing Kubernetes clusters on Amazon EKS. At the end of this tutorial, you will have a running Amazon EKS cluster that you can deploy applications to.

The procedures in this guide create several resources for you automatically that you have to create manually when you create your cluster using the AWS Management Console. If you’d rather manually create most of the resources to better understand how they interact with each other, then use the AWS Management Console to create your cluster and compute. For more information, see Get started with Amazon EKS – AWS Management Console and AWS CLI.

Prerequisites

Before starting this tutorial, you must install and configure the AWS CLI, kubectl, and eksctl tools as described in Set up to use Amazon EKS.

Step 1: Create your Amazon EKS cluster and nodes

Important

To get started as simply and quickly as possible, this topic includes steps to create a cluster and nodes with default settings. Before creating a cluster and nodes for production use, we recommend that you familiarize yourself with all settings and deploy a cluster and nodes with the settings that meet your requirements. For more information, see Create an Amazon EKS cluster and Manage compute resources by using nodes. Some settings can only be enabled when creating your cluster and nodes.

You can create a cluster with one of the following node types. To learn more about each type, see Manage compute resources by using nodes. After your cluster is deployed, you can add other node types.

  • Fargate – Linux – Select this type of node if you want to run Linux applications on Simplify compute management with AWS Fargate. Fargate is a serverless compute engine that lets you deploy Kubernetes Pods without managing Amazon EC2 instances.

  • Managed nodes – Linux – Select this type of node if you want to run Amazon Linux applications on Amazon EC2 instances. Though not covered in this guide, you can also add Windows self-managed and Bottlerocket nodes to your cluster.

Create your Amazon EKS cluster with the following command. You can replace my-cluster with your own value. The name can contain only alphanumeric characters (case-sensitive) and hyphens. It must start with an alphanumeric character and can’t be longer than 100 characters. The name must be unique within the AWS Region and AWS account that you’re creating the cluster in. Replace region-code with any AWS Region that is supported by Amazon EKS. For a list of AWS Regions, see Amazon EKS endpoints and quotas in the AWS General Reference guide.

Fargate - Linux
eksctl create cluster --name my-cluster --region region-code --fargate
Managed nodes - Linux
eksctl create cluster --name my-cluster --region region-code

Cluster creation takes several minutes. During creation you’ll see several lines of output. The last line of output is similar to the following example line.

[...]
[✓]  EKS cluster "my-cluster" in "`region-code`" region is ready

eksctl created a kubectl config file in ~/.kube/config or added the new cluster’s configuration within an existing config file in ~/.kube/config on your computer.

After cluster creation is complete, view the AWS CloudFormation stack named eksctl-my-cluster-cluster in the AWS CloudFormation console to see all of the resources that were created.

Step 2: View Kubernetes resources

  1. View your cluster nodes.

    kubectl get nodes -o wide

    An example output is as follows.

    Fargate - Linux
    NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME fargate-ip-192-0-2-0.region-code.compute.internal Ready <none> 8m3s v1.2.3-eks-1234567 192.0.2.0 <none> Amazon Linux 2 1.23.456-789.012.amzn2.x86_64 containerd://1.2.3 fargate-ip-192-0-2-1.region-code.compute.internal Ready <none> 7m30s v1.2.3-eks-1234567 192-0-2-1 <none> Amazon Linux 2 1.23.456-789.012.amzn2.x86_64 containerd://1.2.3
    Managed nodes - Linux
    NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME ip-192-0-2-0.region-code.compute.internal Ready <none> 6m7s v1.2.3-eks-1234567 192.0.2.0 192.0.2.2 Amazon Linux 2 1.23.456-789.012.amzn2.x86_64 containerd://1.2.3 ip-192-0-2-1.region-code.compute.internal Ready <none> 6m4s v1.2.3-eks-1234567 192.0.2.1 192.0.2.3 Amazon Linux 2 1.23.456-789.012.amzn2.x86_64 containerd://1.2.3

    For more information about what you see in the output, see View Kubernetes resources in the AWS Management Console.

  2. View the workloads running on your cluster.

    kubectl get pods -A -o wide

    An example output is as follows.

    Fargate - Linux
    NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES kube-system coredns-1234567890-abcde 1/1 Running 0 18m 192.0.2.0 fargate-ip-192-0-2-0.region-code.compute.internal <none> <none> kube-system coredns-1234567890-12345 1/1 Running 0 18m 192.0.2.1 fargate-ip-192-0-2-1.region-code.compute.internal <none> <none>
    Managed nodes - Linux
    NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES kube-system aws-node-12345 1/1 Running 0 7m43s 192.0.2.1 ip-192-0-2-1.region-code.compute.internal <none> <none> kube-system aws-node-67890 1/1 Running 0 7m46s 192.0.2.0 ip-192-0-2-0.region-code.compute.internal <none> <none> kube-system coredns-1234567890-abcde 1/1 Running 0 14m 192.0.2.3 ip-192-0-2-3.region-code.compute.internal <none> <none> kube-system coredns-1234567890-12345 1/1 Running 0 14m 192.0.2.4 ip-192-0-2-4.region-code.compute.internal <none> <none> kube-system kube-proxy-12345 1/1 Running 0 7m46s 192.0.2.0 ip-192-0-2-0.region-code.compute.internal <none> <none> kube-system kube-proxy-67890 1/1 Running 0 7m43s 192.0.2.1 ip-192-0-2-1.region-code.compute.internal <none> <none>

    For more information about what you see in the output, see View Kubernetes resources in the AWS Management Console.

Step 3: Delete your cluster and nodes

After you’ve finished with the cluster and nodes that you created for this tutorial, you should clean up by deleting the cluster and nodes with the following command. If you want to do more with this cluster before you clean up, see Next steps.

eksctl delete cluster --name my-cluster --region region-code

Next steps

The following documentation topics help you to extend the functionality of your cluster.