How to Deploy ECR and WordPress to AWS EKS - TechCloudUp

Deploying applications to AWS Elastic Kubernetes Service (EKS) can significantly streamline your operations by leveraging Kubernetes' powerful orchestration capabilities. In this guide, we'll walk you through the steps to deploy a Dockerized WordPress application using Amazon Elastic Container Registry (ECR) and AWS EKS. This process ensures a scalable and managed environment for your applications.

1. Introduction to AWS EKS and ECR

AWS EKS is a managed Kubernetes service that simplifies running Kubernetes on AWS without needing to install and operate your own Kubernetes control plane. ECR, on the other hand, is a fully managed Docker container registry that makes it easy to store, manage, and deploy Docker container images. 

2. Preparing Your Docker Image

Before deploying to EKS, you need a Docker image of your WordPress application.  Push your Docker image to ECR using the AWS CLI. 

3. Setting Up AWS EKS

Create an EKS cluster using the AWS Management Console or AWS CLI. Ensure that your cluster is properly configured and that you have kubectl installed and configured to interact with your cluster. 

4. Deploying WordPress to EKS

Create Kubernetes deployment and service files for WordPress. These files define how your application will be deployed and exposed within your Kubernetes cluster. Use the following Kubernetes YAML files as a template for deploying WordPress:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: wordpress
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wordpress
  template:
    metadata:
      labels:
        app: wordpress
    spec:
      containers:
      - name: wordpress
        image: <your-ecr-repo-uri>/wordpress:latest
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: wordpress
spec:
  type: LoadBalancer
  ports:
  - port: 80
    targetPort: 80
  selector:
    app: wordpress

    

Apply these configurations to your EKS cluster using kubectl:

kubectl apply -f deployment.yaml

5. Verifying Your Deployment

Once deployed, check the status of your WordPress pods and services using kubectl:

kubectl get pods
kubectl get services

You should see your WordPress pod running and a LoadBalancer service providing an external IP. 

Conclusion

Deploying WordPress to AWS EKS using ECR offers a robust and scalable solution for managing your application. By following these steps, you can ensure a smooth deployment process and take advantage of Kubernetes' powerful features.