How to Set Up an EKS Cluster with Managed Node Group and AWS Ingress Controller: A Step-by-Step Guide
Here’s a step-by-step guide to setting up an Amazon Elastic Kubernetes Service (EKS) cluster with a managed node group and the AWS ingress controller:
Step 1: Prerequisites
- Sign in to the AWS Management Console and navigate to the Amazon EKS console.
- Create an IAM role with the necessary permissions to create and manage EKS clusters, node groups, and other resources.
Step 2: Create the EKS Cluster
- Click on “Create cluster” in the EKS console.
- Select the desired settings for your cluster, such as region, Kubernetes version, and VPC configuration.
- Choose the IAM role you created earlier for cluster creation.
- Configure any additional settings as per your requirements.
- Review and create the cluster.
Step 3: Install and Configure the AWS CLI and kubectl
- Install the AWS CLI and configure it with your AWS credentials.
- Install kubectl, the command-line tool for Kubernetes, and configure it to connect to your EKS cluster.
Step 4: Create and Configure the Managed Node Group
- In the EKS console, click on your cluster.
- Click on “Add node group” and provide the necessary details like instance type, desired capacity, and other configurations.
- Choose the IAM role you created earlier for the node group.
- Review and create the node group.
Step 5: Install the AWS Load Balancer Controller
- Open a terminal or command prompt.
- Run the following command to install the AWS Load Balancer Controller:
kubectl apply -k "github.com/aws/eks-charts/stable/aws-load-balancer-controller/crds?ref=master"
- Install the controller with the following command:
helm repo add eks https://aws.github.io/eks-charts helm upgrade -i aws-load-balancer-controller eks/aws-load-balancer-controller -n kube-system --set clusterName=<cluster-name> --set serviceAccount.create=false --set serviceAccount.name=aws-load-balancer-controller
Step 6: Deploy and Configure the AWS Ingress Controller
- Create an AWS ALB Ingress Controller manifest file (e.g., alb-ingress-controller.yaml) with the necessary configurations.
apiVersion: apps/v1 kind: Deployment metadata: name: alb-ingress-controller namespace: kube-system labels: app.kubernetes.io/name: alb-ingress-controller spec: selector: matchLabels: app.kubernetes.io/name: alb-ingress-controller replicas: 1 template: metadata: labels: app.kubernetes.io/name: alb-ingress-controller spec: containers: - name: alb-ingress-controller image: docker.io/amazon/aws-alb-ingress-controller:v1.1.7 args: - --ingress-class=alb - --cluster-name=<cluster-name> - --aws-vpc-id=<vpc-id> env: - name: AWS_REGION value: <aws-region> securityContext: runAsNonRoot: true serviceAccountName: aws-load-balancer-controller
<aws-region> with the appropriate values.
- Apply the manifest file to your cluster using the following command:
kubectl apply -f alb-ingress-controller.yaml
Step 7: Deploy an Application with Ingress
- Create a Kubernetes manifest file for your application, including an Ingress resource to define the routing rules.
- Apply the manifest to your cluster using the
Step 8: Verify the Setup
- After deploying your application with the Ingress resource, wait for a few moments to allow the ingress controller to configure the necessary resources.
- Verify that the AWS ALB (Application Load Balancer) is created and associated with the Ingress rules by checking the AWS Management Console or running the appropriate AWS CLI commands.
Step 9: Test the Application
- Obtain the DNS name or IP address of the ALB created by the ingress controller.
- Access your application by entering the ALB’s DNS name or IP address in a web browser or using tools like cURL or Postman.
Congratulations! You have now successfully set up an EKS cluster with a managed node group and the AWS ingress controller. Your application is accessible through the ALB created by the ingress controller.
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