mannemharitha/eks-cluster-setup

EKS clustercreation using eksctl:

Step1: Take EC2 Instance with t2.xlarge instance type

Step2: Create IAM Role with Admin policy for eks-cluster and attach to ec2-instance

Step3: Install kubectl

curl -o kubectl https://amazon-eks.s3-us-west-2.amazonaws.com/1.14.6/2019-08-22/bin/linux/amd64/kubectl
chmod +x ./kubectl
mkdir -p $HOME/bin
cp ./kubectl $HOME/bin/kubectl
export PATH=$HOME/bin:$PATH
echo 'export PATH=$HOME/bin:$PATH' >> ~/.bashrc
source $HOME/.bashrc
kubectl version --short --client


curl -o kubectl https://amazon-eks.s3.us-west-2.amazonaws.com/1.19.6/2021-01-05/bin/linux/amd64/kubectl
chmod +x ./kubectl
mkdir -p $HOME/bin
cp ./kubectl $HOME/bin/kubectl
export PATH=$HOME/bin:$PATH
echo 'export PATH=$HOME/bin:$PATH' >> ~/.bashrc
source $HOME/.bashrc
kubectl version --short --client

curl -o kubectl https://amazon-eks.s3.us-west-2.amazonaws.com/1.20.4/2021-04-12/bin/linux/amd64/kubectl
chmod +x ./kubectl
mkdir -p $HOME/bin
cp ./kubectl $HOME/bin/kubectl
export PATH=$HOME/bin:$PATH
echo 'export PATH=$HOME/bin:$PATH' >> ~/.bashrc
source $HOME/.bashrc
kubectl version --short --client

curl -o kubectl https://amazon-eks.s3.us-west-2.amazonaws.com/1.22.6/2022-03-09/bin/linux/amd64/kubectl
chmod +x ./kubectl
mkdir -p $HOME/bin
cp ./kubectl $HOME/bin/kubectl
export PATH=$HOME/bin:$PATH
echo 'export PATH=$HOME/bin:$PATH' >> ~/.bashrc
source $HOME/.bashrc
kubectl version --short --client

curl -o kubectl https://amazon-eks.s3.us-west-2.amazonaws.com/1.23.15/2023-01-11/bin/linux/amd64/kubectl
chmod +x ./kubectl
mkdir -p $HOME/bin
cp ./kubectl $HOME/bin/kubectl
export PATH=$HOME/bin:$PATH
echo 'export PATH=$HOME/bin:$PATH' >> ~/.bashrc
source $HOME/.bashrc
kubectl version --short --client

Step4: Install eksctl:

curl --silent --location "https://github.com/weaveworks/eksctl/releases/latest/download/eksctl_$(uname -s)_amd64.tar.gz" | tar xz -C /tmp
sudo mv /tmp/eksctl /usr/bin
eksctl version

Step5: Cluster creation:

eksctl create cluster --name=eksdemo \
                  --region=us-east-1 \
                  --zones=us-east-1a,us-east-1b \
                  --without-nodegroup 

eksctl create cluster --name=eksdemo --region=us-east-1 --version=1.22 --zones=us-east-1a,us-east-1b --without-nodegroup

Step6: Add Iam-Oidc-Providers:

eksctl utils associate-iam-oidc-provider \
    --region us-east-1 \
    --cluster eksdemo \
    --approve

Step7: Create node-group:

eksctl create nodegroup --cluster=eksdemo \
                   --region=us-east-1 \
                   --name=eksdemo-ng-public \
                   --node-type=t2.medium \
                   --nodes=2 \
                   --nodes-min=2 \
                   --nodes-max=4 \
                   --node-volume-size=10 \
                   --ssh-access \
                   --ssh-public-key=devops-demo-est \
                   --managed \
                   --asg-access \
                   --external-dns-access \
                   --full-ecr-access \
                   --appmesh-access \
                   --alb-ingress-access	

CleanUP

Delete node-group:

eksctl delete nodegroup --cluster=eksdemo-dev --region=us-east-1 --name=eksdemo-ng-public Delete Cluster:

eksctl delete cluster --name=eksdemo                       --region=us-east-1	

EKS-Fargate-Setup

EKS Fargate Cluster Setup

eksctl create cluster --name eksdemo --region us-east-1 --fargate

OIDC Provider Creation

eksctl utils associate-iam-oidc-provider --region=us-east-1 --cluster=eksdemo --approve

Create Role to Access ECR from EKS Fargate Cluster

eksctl create iamserviceaccount \
    --attach-policy-arn arn:aws:iam::aws:policy/AmazonEC2ContainerRegistryPowerUser \
    --cluster eksdemo \
    --name ecr-role \
    --namespace default \
    --override-existing-serviceaccounts \
    --region us-east-1 \
    --approve	

Build and Push Image to ECR

docker pull nginx
# Login to ECR
aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin 451060642371.dkr.ecr.us-east-1.amazonaws.com
docker tag nginx:latest 451060642371.dkr.ecr.us-east-1.amazonaws.com/nginx:latest
docker push 451060642371.dkr.ecr.us-east-1.amazonaws.com/nginx:latest

Deploy application with below

cat << EOF > nginx-deployment.yaml
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: 451060642371.dkr.ecr.us-east-1.amazonaws.com/nginx:latest
        ports:
        - containerPort: 80
EOF       
		
kubectl apply -f nginx-deployment.yaml