How to Create EKS Cluster on AWS

Step 1:
Creating IAM role for EKS cluster (for manage purpose)

Role Name – EKS_Cluster

Step 2:

To Create VPC – Go to Cloud Formation – Stack

It helps in creating private cloud -i.e. network , route table and sub network

Use attached file to create VPC

amazon-eks-vpc-private-subnets.yaml

Step 3:
Create EKS cluster — Search EKS service

while creating please choose role EKS_Cluster (which created in step 1) under Cluster service role.

Under networking please choose step 3 VPC

Step 4

Create one instance

configure AWS in machine – they will ask AWS Account and Access Keys
Follow link for the same – https://docs.aws.amazon.com/powershell/latest/userguide/pstools-appendix-sign-up.html

intsall aws cli

Sudo apt install awscli

Install aws-iam-authenticator

curl -Lo aws-iam-authenticator https://github.com/kubernetes-sigs/aws-iam-authenticator/releases/download/v0.5.9/aws-iam-authenticator_0.5.9_linux_amd64
Apply execute permissions to the binary.
chmod +x ./aws-iam-authenticator
Copy the binary to a folder in your $PATH. We recommend creating a $HOME/bin/aws-iam-authenticator and ensuring that $HOME/bin comes first in your $PATH.
mkdir -p $HOME/bin && cp ./aws-iam-authenticator $HOME/bin/aws-iam-authenticator && export PATH=$PATH:$HOME/bin
Test that the aws-iam-authenticator binary works.
aws-iam-authenticator help

Install Kubectl

before install check if it is available
kubectl get svc
To install or update kubectl on Linux
curl -O https://s3.us-west-2.amazonaws.com/amazon-eks/1.24.9/2023-01-11/bin/linux/amd64/kubectl
Apply execute permissions to the binary.
chmod +x ./kubectl
Copy the binary to a folder in your PATH. If you have already installed a version of kubectl, then we recommend creating a $HOME/bin/kubectl and ensuring that $HOME/bin comes first in your $PATH.
mkdir -p $HOME/bin && cp ./kubectl $HOME/bin/kubectl && export PATH=$PATH:$HOME/bin
After you install kubectl, you can verify its version.
kubectl version –short –client

Step 5

Configure kubeconfig into profile (kubeconfig added into local profile)

aws eks –region region_name update-kubeconfig –name eks_cluster_name

export KUBECONFIG=~/.kube/config

kubectl get svc

if getting error :error: exec plugin: invalid apiVersion “client.authentication.k8s.io/v1alpha1”

intsall -sudo apt install python3-pip

pip3 install awscli –upgrade –user

vi ~/.kube/config

change apiVersion to apiVersion: client.authentication.k8s.io/v1beta1

kubectl get svc

kubectl get nodes

kubectl get ns

kubectl get pods

Step 6
Create worker role

select below policy

eksworkernoderole (for worker purpose)

Step 7

Go to eks service
Create worker nodes under eks cluster – select worker

Give worker worker role (step 6) under i am role name

It will create 2 instance (check under EC2 )

Check kubectl get nodes –watch

kubectl get pods – it will get nothing

Deploy app and db package

git clone https://github.com/learnitguide/kubernetes-knote.git

Edit

vi mongo.yaml — edit replicas = 2
vi knote.yaml — edit replicas = 2 and also type = loadbalancer

kubectl get svc
kubectl get pods -o wide
nslookup ae957e45b215c4f2b98054f331979c76-363953468.ap-northeast-1.elb.amazonaws.com
curl ae957e45b215c4f2b98054f331979c76-363953468.ap-northeast-1.elb.amazonaws.com