🚀 Symfony AWS Blue/Green Deployment

A production-ready PHP Symfony application with AWS Free Tier deployment using Terraform, blue/green deployment strategy, and complete CI/CD pipeline with security scanning.

📋 Features

• ✅ PHP Symfony 7.0 - Modern PHP framework
• ✅ AWS Free Tier - EC2, RDS, ALB deployment
• ✅ Blue/Green Deployment - Zero-downtime releases
• ✅ GitFlow CI/CD - Automated pipeline with GitHub Actions
• ✅ Security Scanning - SAST, dependency, and container scanning
• ✅ Infrastructure as Code - Complete Terraform automation

🏗️ Architecture

┌─────────────────────────────────────────────────────────────┐
│                        AWS Cloud                             │
│  ┌─────────────────────────────────────────────────────────┐│
│  │                    Route 53                              ││
│  └──────────────────────┬──────────────────────────────────┘│
│                         │                                    │
│  ┌──────────────────────▼──────────────────────────────────┐│
│  │          Application Load Balancer                       ││
│  │       (Weighted Traffic Routing)                         ││
│  └────────────┬──────────────────────┬─────────────────────┘│
│               │                      │                       │
│    ┌──────────▼──────────┐ ┌────────▼───────────┐          │
│    │   BLUE Environment  │ │  GREEN Environment │          │
│    │   ┌──────────────┐  │ │  ┌──────────────┐  │          │
│    │   │   EC2 (t2)   │  │ │  │   EC2 (t2)   │  │          │
│    │   │   Symfony    │  │ │  │   Symfony    │  │          │
│    │   └──────────────┘  │ │  └──────────────┘  │          │
│    └─────────────────────┘ └────────────────────┘          │
│                         │                                    │
│    ┌────────────────────▼───────────────────────┐          │
│    │           RDS MySQL (Free Tier)             │          │
│    │              db.t2.micro                    │          │
│    └────────────────────────────────────────────┘          │
└─────────────────────────────────────────────────────────────┘

🚀 Quick Start

Prerequisites

• PHP 8.2+
• Composer
• Docker & Docker Compose
• AWS CLI configured
• Terraform 1.5+

Local Development

# Install dependencies
composer install

# Start Docker services
docker-compose up -d

# Run migrations
php bin/console doctrine:migrations:migrate

# Start dev server
symfony server:start

Deploy to AWS

cd terraform

# Initialize Terraform
terraform init

# Preview changes
terraform plan

# Deploy infrastructure
terraform apply

# Deploy application
./scripts/deploy.sh

📁 Project Structure

├── src/                    # Symfony application source
├── config/                 # Symfony configuration
├── templates/              # Twig templates
├── public/                 # Web root
├── terraform/              # Infrastructure as Code
│   ├── modules/            # Terraform modules
│   │   ├── vpc/            # VPC configuration
│   │   ├── ec2/            # EC2 instances
│   │   ├── rds/            # Database
│   │   └── alb/            # Load balancer
│   └── main.tf             # Main configuration
├── .github/workflows/      # CI/CD pipelines
├── docker/                 # Docker configuration
└── scripts/                # Deployment scripts

🔄 GitFlow Branching

main ─────────────────────────────────→ (Production)
  │
  └── develop ────────────────────────→ (Integration)
        │
        ├── feature/login ────────────→ (Feature branches)
        ├── feature/dashboard
        │
        └── release/v1.0.0 ───────────→ (Release branches)

🔒 Security Scanning

Tool	Type	Purpose
PHPStan	SAST	Static code analysis
Composer Audit	SCA	Dependency vulnerabilities
Trivy	Container	Docker image scanning
tfsec	IaC	Terraform security

📊 DevOps Metrics

• Lead Time: < 24 hours
• Deployment Frequency: Daily
• MTTR: < 1 hour
• Change Failure Rate: < 5%