java-eks-project

This repository deploys basic java application in AWS EKS infrastructure provisioned using Terraform using Github Actions.

Prerequisites

• AWS account with read and write permissions to create EKS, VPC, ECR, S3, EC2 and IAM resources
• Generate access key and secret key for that account to be used for configuring aws credentials
• For this project we will be using aws region eu-north-1

Usage

Configure AWS credentials as GH secrets

Add AWS access key and secret key for the user to the GitHub secrets as repository secrets. Go to repository settings > Secrets and variables > Actions > New Repository Secret. Add the values.

Github Actions workflow Steps

• Checkout code (SCM)
• Set short git commit SHA -> to get the short version of the commit sha for the image
• Set up JDK 22 -> For java applications JDK is required
• Build with Maven -> Our application uses maven hence maven commands to build and test
• Configure AWS credentials -> This uses GH Secrets to set the credentials in the GH Actions server to connect to the correct AWS account
• Login to Amazon ECR -> connect to the ECR in the same region in AWS for image management
• Build, tag, and push image to Amazon ECR
• • build, tag and pushing image to the AWS ECR using variables and shortened commit SHA to generate new image on every build
• Setup kubectl
• • k8s CLI (kubectl) is required for the deployment of the applications using their yaml files
• Update kubeconfig
• • Configuring kubeconfig to connect to the terraform provisioned AWS EKS cluster and to deploy app in the same
• Deploy to EKS
• • Deploys the application by applying the deployment and service using their yamls by replacing image with the latest one everytime their is a new build and image available