Creating Kubenetes cluster in AWS have multiple options like using AWS SDK, Terraform, Cloudformation and easy and quick for new learner using AWS Console. In this blog we going see another well know method of creating AWS EKS cluster using “eksctl” command by using as YAML configuration in default VPC. ( Same can be create by CLI command).

Let’s get start

Prerequisites:

Let install these binary one by one

1. AWS CLI
2. eksctl CLI
3. kubectl

Install AWS CLI (Mac OS)

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Download AWS CLI binary

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curl "https://awscli.amazonaws.com/AWSCLIV2.pkg" -o "AWSCLIV2.pkg"

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Install AWS CLI

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sudo installer -pkg ./AWSCLIV2.pkg -target /

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Verify the installation

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aws --version

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Configure AWS CLI

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Login to AWS console as root user

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Create IAM user

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username: kubedeveloper

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No AWS console access, Only programmatic access

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Create Access and Secret Access Key

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Select the IAM user “kubedeveloper”

Navigate to Security Credentials

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Click Create access key

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Select Use case : Command Line Interface (CLI) & check the Confirmation

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Set description tag — optional and Click create

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Now we got AccessKey and SecretAccessKey

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Next, Let configure AWS CLI on Mac OS command line

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Note: if multiple aws account configured, use -- profile

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$ aws configure

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Validate AWS CLI Access

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Run any aws command to list resources

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Here eg: To list s3 buckets on my AWS account

bala@kubelancer Downloads % aws s3 ls

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Getting output, which denoted AWS access has been configured correctly

bala@kubelancer Downloads % aws s3 ls
2022-12-13 21:36:02 firehose-backup-05bf6840
bala@kubelancer Downloads %

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Install eksctl on Mac OS

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To download the latest release, run on Mac OS (arm64 architecture):

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curl -sLO "https://github.com/eksctl-io/eksctl/releases/latest/download/eksctl_Darwin_arm64.tar.gz"
tar -xzvf eksctl_Darwin_arm64.tar.gz
sudo mv ./eksctl /usr/local/bin

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Ref: https://www.weave.works/oss/eksctl/

Creating an AWS EKS Kubernetes Cluster using eksctl tool

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Create Cluster configuration yaml file

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$ vi cluster-config.yamlapiVersion: eksctl.io/v1alpha5
kind: ClusterConfig

metadata:
 name: kubelancer-cluster-1
 region: us-east-1

nodeGroups:
 - name: ng-1
   instanceType: t4g.medium
   desiredCapacity: 2
   volumeSize: 20
   ssh:
     allow: false

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Create Cluster by running below command

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$ eksctl create cluster -f cluster-config.yaml

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Note: if multiple aws account configured, use — profile

List the Cluster by using eksctl command

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eksctl interact with AWS API and get the required details from AWS cloud

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$ eksctl get cluster --profile kubedev

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Use the following command to get update kube-config

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$ aws eks update-kubeconfig --name=kubelancer-cluster-1 --region=us-east-1

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Verify the Cluster

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kubectl get nodes

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Great! Cluster has created successfully.

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Delete Cluster

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$ kubectl get poddisruptionbudget -A
$ kubectl delete poddisruptionbudget coredns -n kube-system
$ eksctl delete cluster -f cluster-config.yaml --profile kubedev

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Happy Cloud Computing :)

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