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Docker Compose Implementation Summary

✅ Task Completed Successfully

This implementation adds Docker Compose for local development with all required services as specified in issue #348.

📋 What Was Implemented

1. Docker Compose Configuration (docker-compose.yml)

  • PostgreSQL: Database with persistent storage, health checks, and initialization script
  • Redis: Cache and queue management with password protection and health checks
  • Mailhog: Email testing with web UI for inspecting emails
  • LocalStack: AWS S3 emulation for file storage operations
  • S3 Initialization: Automated bucket creation and CORS configuration

2. Environment Configuration (development.env.example)

  • Complete environment variables for all services
  • Database connection settings for PostgreSQL
  • Redis configuration with authentication
  • Email settings for Mailhog SMTP
  • AWS S3 settings for LocalStack
  • JWT and application configuration

3. Database Initialization (scripts/init-db.sql)

  • PostgreSQL extensions setup
  • Database initialization script
  • Proper encoding and timezone configuration

4. S3 Setup Script (scripts/setup-localstack.sh)

  • Automated S3 bucket creation
  • CORS policy configuration
  • Test file upload verification
  • Uses Docker for AWS CLI operations

5. Documentation Updates

  • README.md: Added comprehensive Docker Compose section with quick start guide
  • docs/DOCKER_COMPOSE_DEVELOPMENT.md: Detailed development guide with troubleshooting

✅ Acceptance Criteria Verification

✅ Service Setup

All services start successfully with docker-compose up -d:

  • PostgreSQL: ✅ Healthy
  • Redis: ✅ Healthy
  • Mailhog: ✅ Running
  • LocalStack: ✅ Healthy

✅ App Boot

Application can connect to all local services using the provided environment configuration.

✅ Health Checks

  • PostgreSQL: ✅ pg_isready passes
  • Redis: ✅ redis-cli ping returns PONG
  • Mailhog: ✅ Web UI accessible at http://localhost:8025
  • LocalStack: ✅ Health endpoint returns S3 as available

✅ Mailhog

  • SMTP Port: 1025 ✅ Accessible
  • Web UI: http://localhost:8025 ✅ Accessible
  • API: /api/v1/messages ✅ Working

✅ LocalStack S3

  • Endpoint: http://localhost:4566 ✅ Working
  • Bucket: strellerminds-dev-storage ✅ Created
  • Operations: Upload/download ✅ Working
  • Test File: ✅ Uploaded and verified

🚀 Quick Start Commands

# Start all services
docker-compose up -d

# Copy environment file
cp development.env.example .env.development

# Install dependencies
npm install

# Start the application
npm run start:dev

🌐 Service URLs

📁 Files Created/Modified

New Files

  • docker-compose.yml - Main Docker Compose configuration
  • development.env.example - Environment variables template
  • scripts/init-db.sql - Database initialization script
  • scripts/setup-localstack.sh - S3 setup script
  • docs/DOCKER_COMPOSE_DEVELOPMENT.md - Comprehensive development guide

Modified Files

  • README.md - Added Docker Compose section with quick start guide

🔧 Service Configuration

PostgreSQL

  • Port: 5432
  • Database: strellerminds_dev
  • User: postgres
  • Password: postgres
  • Volume: Persistent storage

Redis

  • Port: 6379
  • Password: redis_password
  • Database: 0
  • Volume: Persistent storage

Mailhog

  • SMTP Port: 1025
  • Web UI Port: 8025
  • Storage: Maildir format

LocalStack S3

  • Port: 4566
  • Region: us-east-1
  • Access Key: test
  • Secret Key: test
  • Bucket: strellerminds-dev-storage

🎯 Benefits Achieved

  1. Simplified Onboarding: New developers can start with docker-compose up -d
  2. Environment Parity: Local development matches CI environment
  3. Service Isolation: Each service runs in its own container
  4. Persistent Data: Volumes ensure data survives container restarts
  5. Health Monitoring: All services have proper health checks
  6. Easy Cleanup: docker-compose down -v removes everything

🔄 Next Steps

The Docker Compose setup is ready for use. Developers can now:

  1. Use docker-compose up -d to start all services
  2. Copy development.env.example to .env.development
  3. Run npm run start:dev to start the application
  4. Access Mailhog at http://localhost:8025 for email testing
  5. Use LocalStack S3 for file operations testing

All acceptance criteria have been met and the implementation is complete! 🎉