Cara Deploy Fullstack App React + Go Fiber ke AWS EC2 dengan Docker & GitHub Actions CI/CD

chmod 400 your-key.pem
ssh -i your-key.pem ubuntu@YOUR_EC2_IP

# Update system
sudo apt-get update && sudo apt-get upgrade -y

# Install dependencies
sudo apt-get install -y ca-certificates curl gnupg lsb-release

# Add Docker GPG key
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

# Add Docker repository
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# Install Docker Engine
sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin

# Tambahkan user ubuntu ke group docker
sudo usermod -aG docker ubuntu
newgrp docker

# Verifikasi
docker --version
docker compose version

# Stage 1: Build binary
FROM golang:1.22-alpine AS builder
WORKDIR /app

COPY go.mod go.sum ./
RUN go mod download

COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o main ./cmd/main.go

# Stage 2: Image final (minimal)
FROM alpine:3.19
RUN apk --no-cache add ca-certificates tzdata
WORKDIR /root/
COPY --from=builder /app/main .
ENV TZ=Asia/Jakarta
EXPOSE 8080
CMD ["./main"]

# Stage 1: Build React app
FROM node:20-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production
COPY . .
RUN npm run build

# Stage 2: Serve dengan Nginx
FROM nginx:alpine
COPY --from=builder /app/dist /usr/share/nginx/html
COPY nginx-frontend.conf /etc/nginx/conf.d/default.conf
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]

Konfigurasi Nginx untuk handle React Router (SPA fallback):

server {
    listen 80;
    root /usr/share/nginx/html;
    index index.html;

    gzip on;
    gzip_types text/css application/javascript application/json;

    location / {
        try_files $uri $uri/ /index.html;
    }

    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff2)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }
}

version: '3.8'

services:
  db:
    image: postgres:16-alpine
    container_name: letta_db
    restart: unless-stopped
    environment:
      POSTGRES_USER: ${DB_USER}
      POSTGRES_PASSWORD: ${DB_PASSWORD}
      POSTGRES_DB: ${DB_NAME}
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - app-network
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${DB_USER}"]
      interval: 10s
      timeout: 5s
      retries: 5

  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: letta_backend
    restart: unless-stopped
    environment:
      DB_HOST: db
      DB_USER: ${DB_USER}
      DB_PASSWORD: ${DB_PASSWORD}
      DB_NAME: ${DB_NAME}
      DB_PORT: 5432
      JWT_SECRET: ${JWT_SECRET}
      APP_ENV: production
    depends_on:
      db:
        condition: service_healthy
    networks:
      - app-network

  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
    container_name: letta_frontend
    restart: unless-stopped
    depends_on:
      - backend
    networks:
      - app-network

  nginx:
    image: nginx:alpine
    container_name: letta_nginx
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
      - /etc/letsencrypt:/etc/letsencrypt:ro
    depends_on:
      - frontend
      - backend
    networks:
      - app-network

volumes:
  postgres_data:

networks:
  app-network:
    driver: bridge

Buat file .env di server (jangan di-commit ke Git!):

DB_USER=letta_user
DB_PASSWORD=supersecretpassword123
DB_NAME=letta_school
JWT_SECRET=your-very-long-random-jwt-secret-here

sudo apt-get install -y certbot
sudo certbot certonly --standalone -d yourdomain.com -d www.yourdomain.com

events { worker_connections 1024; }

http {
    server {
        listen 80;
        server_name yourdomain.com www.yourdomain.com;
        return 301 https://$host$request_uri;
    }

    server {
        listen 443 ssl http2;
        server_name yourdomain.com www.yourdomain.com;

        ssl_certificate /etc/letsencrypt/live/yourdomain.com/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/yourdomain.com/privkey.pem;

        add_header X-Frame-Options "SAMEORIGIN";
        add_header X-Content-Type-Options "nosniff";
        add_header Referrer-Policy "strict-origin-when-cross-origin";

        location / {
            proxy_pass http://frontend:80;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
        }

        location /api/ {
            proxy_pass http://backend:8080/;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
    }
}

name: Deploy to AWS EC2

on:
  push:
    branches: [main]

jobs:
  deploy:
    name: Build & Deploy
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: GitLeaks — Secret Scanning
        uses: gitleaks/gitleaks-action@v2
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Semgrep — SAST
        uses: semgrep/semgrep-action@v1
        with:
          config: "auto"

      - name: Trivy — Container Scan
        uses: aquasecurity/trivy-action@master
        with:
          scan-type: 'fs'
          scan-ref: './backend'
          severity: 'CRITICAL,HIGH'
          exit-code: '1'

      - name: Deploy via SSH
        uses: appleboy/ssh-action@v1
        with:
          host: ${{ secrets.EC2_HOST }}
          username: ubuntu
          key: ${{ secrets.EC2_SSH_KEY }}
          script: |
            cd /home/ubuntu/letta-school
            git pull origin main
            docker compose up --build -d
            docker image prune -f

cd /home/ubuntu
git clone https://github.com/username/letta-school.git
cd letta-school

# Buat .env
nano .env

# Jalankan semua container
docker compose up --build -d

# Cek status
docker compose ps
docker compose logs -f backend

0 0 1 * * certbot renew --quiet && docker compose restart nginx