Kubernetes Cluster Setup with EKS and Kubectl πŸš€

Kubernetes Cluster Setup with EKS and Kubectl πŸš€

πŸ“ Introduction:

Are you ready to venture into the world of Kubernetes but finding the setup process overwhelming? Fear not! In this guide, we'll take you through the step-by-step process of installing Kubectl and EKS CTL, setting up an EKS cluster, and showcasing real-time examples to illuminate each step. Let's dive in! 🌟

Prerequisites:

  1. AWS EC2 Instance:

    • Launch an EC2 instance on Amazon Web Services (AWS) using the Amazon Linux image.

    • Choose the instance type t2.medium to ensure sufficient resources for the cluster setup.

  2. AWS IAM Role:

    • Create an IAM role named ec2 with the AdministratorAccess policy attached.

    • Attach this IAM role to the EC2 instance you launched. This role will grant necessary permissions for the instance to access AWS services.

With these prerequisites ready, you're all set to follow the steps in the previous sections to install Kubectl and EKS CTL, create the EKS cluster, add OIDC for Kubernetes, and add nodes to the cluster.

Step 1: Installing Kubectl and EKS CTL

Installing Kubectl

Kubectl is the command-line tool that lets you interact with Kubernetes clusters. Let's install it:

  • Download Kubectl:
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
  • Download Kubectl SHA-256 checksum:
curl -LO "https://dl.k8s.io/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl.sha256"
  • Verify the checksum:
echo "$(cat kubectl.sha256) kubectl" | sha256sum --check
  • Install Kubectl:
sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
  • Check if Kubectl is installed:
kubectl get pods

Installing EKS CTL

EKS CTL simplifies the process of creating, updating, and managing Amazon EKS clusters. Let's install it:

  • Download and install EKS CTL:
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
  • Verify EKS CTL installation:
eksctl version

Step 2: Adding IAM Role to EC2 Instances

To enable EC2 instances to access the EKS cluster, you need to attach an IAM role to them:

  • Create an IAM role named ec2 with AdministratorAccess policy attached.

  • Attach the role to your EC2 instances.

Step 3: Creating the EKS Cluster

  • Create the EKS cluster (This might take 10-15 minutes):
eksctl create cluster --name=eksdemo1 --region=us-west-1 --zones=us-west-1b,us-west-1a --without-nodegroup

Step 4: Adding OIDC for Kubernetes

OIDC (OpenID Connect) allows Kubernetes to access external resources. Associate the OIDC provider:

eksctl utils associate-iam-oidc-provider --region us-west-1 --cluster eksdemo1 --approve

Step 5: Adding Nodes to the Cluster

Let's add nodes to the cluster using EKS CTL:

eksctl create nodegroup --cluster=eksdemo1 --region=us-west-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=k8-west1 --managed --asg-access --external-dns-access --full-ecr-access --appmesh-access --alb-ingress-access

Checking Your Progress

To see all the running pods, execute:

kubectl get pods -n kube-system

πŸ“Conclusion:

Navigating the EKS Galaxy Made Simple

With Kubectl and EKS CTL in your toolbox, setting up a Kubernetes cluster becomes a breeze. You've journeyed through installation, IAM role setup, EKS cluster creation, OIDC integration, and node addition. As you revel in the thriving Kubernetes ecosystem, remember that mastering these tools opens doors to a universe of efficient and seamless container orchestration. Your Kubernetes odyssey has just begun! 🌌

πŸ” Checkout GitHub Repository for projects:

πŸ”— github.com/sumanprasad007

πŸ” Check out my YouTube channel - Prasad Suman Mohan:

πŸ”— youtu.be/oVJoN5Zc3Kw

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