Deploying Spring Boot to AWS ECS with GitHub Actions

Architecture Overview

Spring Boot AWS ECS

Steps to Deploy

1. Dockerize the App

dockerfileCopy
FROM openjdk:17
ARG JAR_FILE=target/*.jar
COPY ${JAR_FILE} app.jar
ENTRYPOINT ["java", "-jar", "app.jar"]

2. Push to ECR (Elastic Container Registry)

bashCopy
aws ecr get-login-password | docker login ...
docker build -t my-app .
docker tag my-app:latest <your-ecr-url>
docker push <your-ecr-url>

3. Define ECS Task

Use Fargate or EC2-based task with load balancer.

4. Automate with GitHub Actions

yamlCopy
name: Deploy to ECS
on:
  push:
    branches: [ main ]
jobs:
  build-and-deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: docker/setup-buildx-action@v2
      - uses: docker/build-push-action@v4
        with:
          context: .
          push: true
          tags: ${{ secrets.ECR_URI }}:latest

Done ✅

You now have a cloud-deployed Spring Boot app, auto-deployed on every push to main.