CI/CD Process for Spring Boot App Deployment on AWS ECS

Jul 13, 2024

End-to-End CI/CD Process for Deploying a Spring Boot App on AWS ECS

Introduction

  • Tutorial focused on CI/CD pipeline for deploying a Spring Boot app on AWS ECS using AWS CodePipeline and AWS CodeBuild.
  • Check out the AWS playlist for foundational knowledge.
  • Understand challenges faced without CI/CD, then configure AWS services.

Basic Steps for Manual Deployment

  1. Spring Boot App Creation
  2. Docker Image Creation
    • Create a Dockerfile.
    • Build Docker image.
  3. Push Image to AWS ECR
  4. Pull Image from AWS ECS and Run
    • Manually repeat for each update.

Automating the Process

Continuous Integration (CI)

  • Use AWS CodeBuild for CI.
    • Define Docker image creation and ECR push in buildspec.yml file.

Continuous Deployment (CD)

  • Use AWS CodePipeline for CD.
  • Deploy Docker image to AWS ECS.

Steps in Detail

1. Spring Boot Application Setup

  • Create a simple Spring Boot app with basic CRUD operations.
  • Code is ready to be dockerized.

2. Dockerfile Creation

  • Define base image (e.g., openjdk 17).
  • Define a working directory, copy the JAR file, expose port, command to execute JAR.

3. Create Elastic Container Registry (ECR)

  • Create a new repository in ECR to store Docker images.

4. Define buildspec.yml File

  • Instructions for AWS CodeBuild.
  • Phases: Pre-build, Build, Post-build.
    • Pre-build Phase: Generate JAR file, log into ECR, generate commit hash and image tag.
    • Build Phase: Create Docker image and tag it.
    • Post-build Phase: Push Docker image to ECR.

5. Create AWS CodeBuild Project

  • Link to GitHub repository.
  • Define roles and attach necessary policies.
  • Start build to verify process.

6. Setup AWS ECS

Task Definition

  • Define the task with the Docker image, port mapping.

Cluster Creation

  • Create a cluster in AWS ECS.

Service Creation

  • Create a service, map to the task definition, set networking.
  • Verify service is running.

7. Trigger Build with Code Change

  • Update code and push changes to GitHub.
  • Verify if AWS CodeBuild and CodePipeline are triggered.
  • Validate in AWS ECR & ECS for updated deployment.

8. Configure AWS CodePipeline

  • Add pipeline stages: Source, Build, Deploy.
  • Connect to GitHub, AWS CodeBuild, and ECS.
  • Validate automated CI/CD.

Conclusion

  • CI/CD automates development, build, and deployment processes.
  • Use AWS CodePipeline and CodeBuild for effective CI/CD.
  • Configuring the services properly based on the sequence of steps.
  • Understand the process flow for accurate setup and execution.