https://github.com/ericgitangu/uber-system-design
Analysis of Ubers System Design - For learning purposes
https://github.com/ericgitangu/uber-system-design
cicd iac k6 k8s qa qa-automation system-design terraform
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Analysis of Ubers System Design - For learning purposes
- Host: GitHub
- URL: https://github.com/ericgitangu/uber-system-design
- Owner: ericgitangu
- Created: 2025-06-15T10:33:30.000Z (10 months ago)
- Default Branch: main
- Last Pushed: 2025-06-15T13:05:54.000Z (10 months ago)
- Last Synced: 2025-07-28T17:14:21.105Z (8 months ago)
- Topics: cicd, iac, k6, k8s, qa, qa-automation, system-design, terraform
- Homepage: https://developer.ericgitangu.com
- Size: 65.4 KB
- Stars: 1
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Enterprise System Architecture - Ride-Sharing Platform ๐
[](LICENSE)
[](https://kubernetes.io/)
[](https://terraform.io/)
> A comprehensive, production-grade system architecture blueprint for ride-sharing platforms, demonstrating enterprise-scale infrastructure patterns, microservices design, and cloud-native technologies using Uber as a reference implementation.
## ๐ Table of Contents
- [Overview](#overview)
- [Architecture](#architecture)
- [Quick Start](#quick-start)
- [Infrastructure](#infrastructure)
- [Services](#services)
- [Development](#development)
- [Testing](#testing)
- [Deployment](#deployment)
- [Monitoring](#monitoring)
- [Security](#security)
- [Performance](#performance)
- [Disaster Recovery](#disaster-recovery)
- [Contributing](#contributing)
## ๐๏ธ Overview
This repository contains a complete implementation of an enterprise-grade system architecture for ride-sharing platforms, using Uber's design patterns as a reference case study. The architecture demonstrates modern cloud-native technologies, microservices patterns, and production-ready infrastructure suitable for high-scale platforms.
### Key Features
- ๐ **Microservices Architecture**: Scalable, independent services
- โ๏ธ **Multi-Cloud Ready**: AWS, GCP, Oracle Cloud support
- ๐ **Event-Driven**: Kafka-based real-time data processing
- ๐ **Big Data Analytics**: Hadoop, Spark, Hive integration
- ๐ **Enterprise Security**: Zero-trust, encryption, compliance
- ๐ฑ **Multi-Platform**: Web, mobile, admin interfaces
- ๐ฏ **Production-Ready**: Comprehensive monitoring, logging, alerting
- ๐ง **GitOps**: Infrastructure and application automation
### System Capabilities
- **Real-time Ride Matching**: Sub-second driver-rider pairing
- **Dynamic Pricing**: Surge pricing based on demand
- **Route Optimization**: ML-powered path planning
- **Payment Processing**: Multi-gateway payment support
- **Global Scale**: Multi-region deployment
- **High Availability**: 99.99% uptime SLA
## ๐๏ธ Architecture
### System Overview
```mermaid
graph TB
subgraph "Client Layer"
WEB[Web App]
MOBILE[Mobile Apps]
ADMIN[Admin Dashboard]
end
subgraph "API Gateway"
LB[Load Balancer]
API[API Gateway]
end
subgraph "Microservices"
USER[User Service]
DRIVER[Driver Service]
TRIP[Trip Service]
PAYMENT[Payment Service]
end
subgraph "Data Layer"
CACHE[Redis Cache]
DB[(PostgreSQL)]
NOSQL[(Cassandra)]
end
WEB --> LB
MOBILE --> LB
ADMIN --> LB
LB --> API
API --> USER
API --> DRIVER
API --> TRIP
API --> PAYMENT
USER --> CACHE
USER --> DB
TRIP --> NOSQL
```
### Technology Stack
| Component | Technology | Purpose | Language |
|-----------|------------|---------|----------|
| **Container Orchestration** | Kubernetes | Service deployment and scaling | YAML |
| **Service Mesh** | Istio | Inter-service communication | YAML |
| **API Gateway** | Kong/Envoy/Traefik | Request routing and rate limiting | Config |
| **Databases** | PostgreSQL, Cassandra, Redis | Data persistence and caching | SQL/CQL |
| **Message Streaming** | Apache Kafka | Event processing | Java/Scala |
| **Monitoring** | Prometheus + Grafana | Observability | PromQL |
| **Tracing** | Jaeger + OpenTelemetry | Distributed tracing | Multi-lang |
| **Logging** | ELK Stack | Log aggregation | Multi-lang |
| **CI/CD** | GitHub Actions + ArgoCD | Deployment automation | YAML |
| **Infrastructure** | Terraform | Infrastructure as Code | HCL |
| **Security** | HashiCorp Vault + OPA | Secrets & Policy | HCL/Rego |
## ๐ Quick Start
### Prerequisites
- Docker & Docker Compose
- Kubernetes cluster (local or cloud)
- Terraform >= 1.5
- kubectl
- Helm >= 3.0
- Yarn >= 4.0
- Node.js >= 18
- Python >= 3.9
- Go >= 1.21
- Java >= 17
### Local Development Setup
1. **Clone the repository**
```bash
git clone https://github.com/ericgitangu/enterprise-system-architecture.git
cd enterprise-system-architecture
```
2. **Start local development environment**
```bash
# Start infrastructure services
docker-compose -f docker-compose.dev.yml up -d
# Install dependencies
yarn install # Node.js services
pip install -r requirements.txt # Python services
go mod download # Go services
mvn install # Java services
# Start development servers
yarn dev
```
3. **Verify setup**
```bash
# Check service health
curl http://localhost:8080/health
# Run tests
yarn test
```
### Cloud Deployment
1. **Configure cloud credentials**
```bash
# AWS
export AWS_ACCESS_KEY_ID=your-key
export AWS_SECRET_ACCESS_KEY=your-secret
export AWS_REGION=us-west-2
```
2. **Deploy infrastructure**
```bash
cd terraform/environments/production
terraform init
terraform plan
terraform apply
```
3. **Deploy applications**
```bash
# Connect to cluster
aws eks update-kubeconfig --name production-eks-cluster
# Deploy with ArgoCD
kubectl apply -f gitops/applications/
```
## ๐๏ธ Infrastructure
### Directory Structure
```
terraform/
โโโ modules/
โ โโโ networking/ # VPC, subnets, security groups
โ โโโ compute/ # EKS, EC2, Lambda
โ โโโ data/ # RDS, ElastiCache, DocumentDB
โ โโโ security/ # IAM, secrets, certificates
โ โโโ monitoring/ # CloudWatch, Prometheus
โโโ environments/
โ โโโ dev/ # Development environment
โ โโโ staging/ # Staging environment
โ โโโ production/ # Production environment
โโโ shared/ # Shared configurations
```
### Supported Environments
| Environment | Purpose | Resources | Auto-scaling |
|-------------|---------|-----------|--------------|
| **Development** | Feature development | Minimal | Manual |
| **Staging** | Testing & QA | Production-like | Limited |
| **Production** | Live traffic | Full scale | Auto |
## ๐ง Services
### Core Microservices
#### User Service (Go)
```yaml
Technology: Go + Gin + GORM
Database: PostgreSQL
Responsibilities:
- User registration and authentication
- Profile management
- Preferences and settings
API Endpoints:
- POST /api/users # Create user
- GET /api/users/{id} # Get user profile
- PUT /api/users/{id} # Update profile
- DELETE /api/users/{id} # Deactivate account
Testing:
- Unit: Testify + Gomock
- Integration: Go HTTP tests
- Load: K6 + Vegeta
```
#### Driver Service (Java)
```yaml
Technology: Spring Boot + JPA
Database: PostgreSQL + Redis
Responsibilities:
- Driver onboarding
- Document verification
- Availability tracking
- Performance metrics
API Endpoints:
- POST /api/drivers # Register driver
- GET /api/drivers/{id} # Get driver info
- PUT /api/drivers/{id}/status # Update availability
- GET /api/drivers/nearby # Find nearby drivers
Testing:
- Unit: JUnit 5 + Mockito
- Integration: TestContainers
- Performance: JMeter
```
#### Trip Service (Node.js)
```yaml
Technology: Node.js + Express + TypeScript
Database: Cassandra + Redis
Responsibilities:
- Trip lifecycle management
- Route optimization
- ETA calculations
- Trip history
API Endpoints:
- POST /api/trips # Request trip
- GET /api/trips/{id} # Get trip details
- PUT /api/trips/{id}/status # Update trip status
- GET /api/trips/history # Trip history
Testing:
- Unit: Jest + Supertest
- Integration: Jest + TestContainers
- E2E: Playwright
```
#### Payment Service (Python)
```yaml
Technology: FastAPI + SQLAlchemy + Celery
Database: PostgreSQL + Redis
Responsibilities:
- Payment processing
- Multiple payment methods
- Fraud detection
- Financial reporting
API Endpoints:
- POST /api/payments # Process payment
- GET /api/payments/{id} # Payment details
- POST /api/payments/refund # Refund payment
- GET /api/payments/methods # Payment methods
Testing:
- Unit: pytest + pytest-mock
- Integration: pytest + httpx
- Load: Locust
```
### Service Communication
```mermaid
graph LR
A[API Gateway] --> B[User Service - Go]
A --> C[Driver Service - Java]
A --> D[Trip Service - Node.js]
A --> E[Payment Service - Python]
D --> F[Kafka: Trip Events]
E --> F
B --> F
C --> F
F --> G[Analytics Pipeline - Spark/Scala]
F --> H[Notification Service - Go]
F --> I[ML Pipeline - Python]
```
## ๐ป Development
### Development Workflow
1. **Feature Development**
```bash
# Create feature branch
git checkout -b feature/user-verification
# Install dependencies per language
yarn install # Node.js/TypeScript
go mod tidy # Go
pip install -r requirements.txt # Python
mvn install # Java
# Make changes and test
yarn test # Node.js
go test ./... # Go
pytest # Python
mvn test # Java
# Commit and push
git commit -m "feat: add user verification"
git push origin feature/user-verification
```
2. **Code Quality Checks**
```bash
# Node.js/TypeScript
yarn lint # ESLint
yarn format # Prettier
yarn type-check # TypeScript
# Go
golangci-lint run # Linting
go fmt ./... # Formatting
go vet ./... # Static analysis
# Python
flake8 . # Linting
black . # Formatting
mypy . # Type checking
bandit -r . # Security analysis
# Java
mvn spotbugs:check # Static analysis
mvn pmd:check # Code quality
```
### Code Standards
| Language | Framework | Style Guide | Testing | Documentation |
|----------|-----------|-------------|---------|---------------|
| **TypeScript/Node.js** | Express/Fastify | ESLint + Prettier | Jest + Supertest | TSDoc |
| **Go** | Gin/Echo | gofmt + golangci-lint | Testify + Gomock | godoc |
| **Python** | FastAPI/Django | Black + flake8 | pytest + pytest-mock | Sphinx |
| **Java** | Spring Boot | Google Java Style | JUnit 5 + Mockito | Javadoc |
### Environment Variables
```bash
# Application (Language Agnostic)
ENVIRONMENT=development
LOG_LEVEL=debug
SERVICE_NAME=user-service
SERVICE_VERSION=1.0.0
# Database
DATABASE_URL=postgresql://user:pass@localhost:5432/rideshare_dev
REDIS_URL=redis://localhost:6379
CASSANDRA_HOSTS=localhost:9042
# Message Streaming
KAFKA_BROKERS=localhost:9092
KAFKA_TOPIC_PREFIX=rideshare
# Observability
JAEGER_ENDPOINT=http://localhost:14268/api/traces
PROMETHEUS_ENDPOINT=http://localhost:9090
# Security
JWT_SECRET=your-jwt-secret
VAULT_ADDR=http://localhost:8200
VAULT_TOKEN=your-vault-token
```
## ๐งช Testing
### Testing Strategy
```
Testing Pyramid (Multi-Language):
โโโ Unit Tests (70%) # Fast, isolated component tests
โโโ Integration Tests (20%) # Service interaction tests
โโโ Contract Tests (5%) # API contract validation
โโโ E2E Tests (3%) # Full user journey tests
โโโ Performance Tests (2%) # Load and stress tests
```
### Testing Tools by Language
#### Node.js/TypeScript Testing
```bash
# Unit testing with Jest
yarn test:unit # All unit tests
yarn test:unit:watch # Watch mode
yarn test:unit:coverage # With coverage report
# Integration testing
yarn test:integration # Database and API integration
# E2E testing with Playwright
yarn test:e2e # All E2E tests
# Performance testing
yarn test:performance # Load testing with K6
```
#### Go Testing
```bash
# Unit testing
go test ./... # All packages
go test -race ./... # Race condition detection
go test -cover ./... # Coverage analysis
# Integration testing
go test -tags=integration ./... # Integration tests
# Benchmark testing
go test -bench=. ./... # Benchmark tests
```
#### Python Testing
```bash
# Unit testing with pytest
pytest tests/unit/ # Unit tests
pytest tests/unit/ --cov=src # With coverage
# Integration testing
pytest tests/integration/ # Integration tests
# Performance testing
pytest tests/performance/ --benchmark-only
```
#### Java Testing
```bash
# Maven testing
mvn test # Unit tests
mvn integration-test # Integration tests
mvn verify # All tests + verification
# Coverage with JaCoCo
mvn jacoco:prepare-agent test jacoco:report
```
### Performance Testing
#### Load Testing (Expected Performance Verification)
```bash
# K6 Load Testing - Verify system handles expected traffic
k6 run --vus 100 --duration 30m tests/performance/load-testing/main.js
# Objectives:
# - Validate performance under expected load (100-500 concurrent users)
# - Verify SLA compliance (p95 < 1.5s, p99 < 3s)
# - Confirm system stability over extended periods
```
#### Stress Testing (Breaking Point Analysis)
```bash
# K6 Stress Testing - Find system limits
k6 run tests/performance/stress-testing/stress.js
# Objectives:
# - Determine maximum system capacity (breaking point)
# - Observe system behavior under extreme load
# - Validate graceful degradation mechanisms
```
#### Chaos Engineering
```bash
# Chaos Monkey for Kubernetes
kubectl apply -f tests/chaos/chaos-monkey-deployment.yml
# Custom chaos testing scenarios:
yarn test:chaos:network # Network partition simulation
yarn test:chaos:cpu # CPU exhaustion scenarios
yarn test:chaos:memory # Memory pressure testing
```
## ๐ Deployment
### CI/CD Pipeline
```yaml
Stages:
1. Code Quality # Linting, formatting, security
2. Testing # Unit, integration, security tests
3. Build # Docker image creation
4. Deploy to Staging # Automated deployment
5. E2E Testing # Full system validation
6. Deploy to Prod # Manual approval required
7. Smoke Tests # Production health checks
```
### Deployment Strategies
#### Blue-Green Deployment
```bash
# Deploy new version (green)
kubectl set image deployment/user-service user-service=new-image:v2.0.0
# Verify deployment
kubectl rollout status deployment/user-service
# Switch traffic (if successful)
kubectl patch service user-service -p '{"spec":{"selector":{"version":"v2.0.0"}}}'
```
#### Canary Deployment
```yaml
# 10% traffic to new version
apiVersion: argoproj.io/v1alpha1
kind: Rollout
spec:
strategy:
canary:
steps:
- setWeight: 10
- pause: {duration: 10m}
- setWeight: 50
- pause: {duration: 10m}
- setWeight: 100
```
### GitOps Workflow
```mermaid
graph LR
A[Code Push] --> B[CI Pipeline]
B --> C[Build & Test]
C --> D[Update Manifests]
D --> E[ArgoCD Sync]
E --> F[Deploy to K8s]
F --> G[Health Checks]
```
## ๐ Monitoring & Observability
### Comprehensive Observability Stack
| Component | Tool | Purpose | Language Support |
|-----------|------|---------|------------------|
| **Metrics** | Prometheus + Grafana | Time-series metrics | All |
| **Tracing** | Jaeger + OpenTelemetry | Distributed tracing | All |
| **Logging** | ELK Stack + Fluentd | Log aggregation | All |
| **APM** | Datadog/New Relic | Application performance | All |
| **Uptime** | Pingdom/Uptime Robot | Synthetic monitoring | HTTP/API |
### Performance Targets & SLAs
| Metric | Target | Monitoring | Alerting Threshold |
|--------|--------|------------|-------------------|
| **API Response Time (p95)** | < 500ms | Prometheus + Grafana | > 750ms |
| **API Response Time (p99)** | < 1.5s | Distributed tracing | > 2s |
| **Database Query Time (p95)** | < 100ms | PostgreSQL metrics | > 200ms |
| **Cache Hit Ratio** | > 85% | Redis metrics | < 75% |
| **Throughput** | > 10,000 RPS | Load balancer metrics | < 8,000 RPS |
| **Error Rate** | < 0.1% | Application logs | > 0.5% |
| **Availability** | 99.99% | Synthetic monitoring | < 99.9% |
### Application-Level Observability
```yaml
Custom Business Metrics:
โโโ Ride requests per minute: Counter
โโโ Driver utilization rate: Gauge
โโโ Payment success rate: Histogram
โโโ User session duration: Summary
โโโ Revenue per ride: Custom metric
SLA/SLI Monitoring:
โโโ API latency percentiles (p50, p95, p99)
โโโ Error rate budgets (99.9% availability)
โโโ Throughput measurements (requests/second)
โโโ Dependency availability tracking
```
### Health Checks and Synthetic Monitoring
#### Universal Health Check Pattern
```yaml
endpoints:
- path: /health
method: GET
response:
status: 200
content-type: application/json
schema:
type: object
properties:
status:
type: string
enum: ["healthy", "degraded", "unhealthy"]
timestamp: { type: string, format: date-time }
version: { type: string }
checks:
type: object
properties:
database: { type: object }
cache: { type: object }
external_apis: { type: array }
uptime_seconds: { type: number }
```
## ๐ Security
### Security Framework
```yaml
Security Layers:
1. Network Security # VPC, Security Groups, NACLs
2. Identity & Access # IAM, RBAC, MFA
3. Application Security # Authentication, Authorization
4. Data Protection # Encryption, Key Management
5. Monitoring & Audit # Security logs, Compliance
```
### Zero Trust Architecture
```yaml
Zero Trust Principles:
โโโ Network Segmentation
โ โโโ Micro-segmentation with Istio service mesh
โ โโโ Network policies for pod-to-pod communication
โ โโโ Private subnets for all backend services
โ โโโ WAF and DDoS protection at ingress
โโโ Identity Verification
โ โโโ Multi-factor authentication for all users
โ โโโ Certificate-based service authentication
โ โโโ Short-lived tokens with automatic rotation
โ โโโ Continuous identity validation
โโโ Device Security
โ โโโ Device registration and compliance checking
โ โโโ Mobile application certificate pinning
โ โโโ Jailbreak/root detection
โ โโโ Remote device management capabilities
โโโ Data Classification
โโโ PII data encryption at rest and in transit
โโโ Data loss prevention (DLP) policies
โโโ Geographic data residency compliance
โโโ Automated data discovery and classification
```
### Security Implementation
#### Authentication & Authorization (Go Example)
```go
type Claims struct {
UserID string `json:"user_id"`
Email string `json:"email"`
Roles []string `json:"roles"`
Scope []string `json:"scope"`
SessionID string `json:"session_id"`
jwt.RegisteredClaims
}
// Role-Based Access Control
var RoleDefinitions = map[string]Role{
"rider": {
Name: "rider",
Permissions: []Permission{
{Resource: "trips", Action: "create", Scope: "own"},
{Resource: "trips", Action: "read", Scope: "own"},
{Resource: "payments", Action: "create", Scope: "own"},
},
},
"driver": {
Name: "driver",
Permissions: []Permission{
{Resource: "trips", Action: "read", Scope: "assigned"},
{Resource: "trips", Action: "update", Scope: "assigned"},
{Resource: "earnings", Action: "read", Scope: "own"},
},
},
"admin": {
Name: "admin",
Permissions: []Permission{
{Resource: "*", Action: "*", Scope: "*"},
},
},
}
```
#### Data Encryption (TypeScript Example)
```typescript
class DataEncryption {
private readonly algorithm = 'aes-256-gcm';
encryptPII(data: string, additionalData?: string): EncryptionResult {
const iv = crypto.randomBytes(16);
const cipher = crypto.createCipher(this.algorithm, key, iv);
if (additionalData) {
cipher.setAAD(Buffer.from(additionalData));
}
let encrypted = cipher.update(data, 'utf8', 'hex');
encrypted += cipher.final('hex');
const authTag = cipher.getAuthTag();
return {
encrypted,
iv: iv.toString('hex'),
authTag: authTag.toString('hex'),
keyId: 'current'
};
}
}
```
### Security Scanning Pipeline
```yaml
security-pipeline:
dependency-scanning:
- npm audit (Node.js)
- safety check (Python)
- nancy (Go)
- OWASP Dependency Check (Java)
container-scanning:
- Trivy image scan
- Docker Scout CVE scan
static-code-analysis:
- CodeQL Analysis
- SonarQube Scan
- Semgrep SAST
infrastructure-scanning:
- Checkov (Terraform)
- kube-score (Kubernetes)
- Terrascan (IaC)
```
### Compliance Implementation
#### GDPR Compliance
```python
class GDPRCompliance:
async def handle_data_subject_request(self, request_type: str, user_id: str):
if request_type == "access":
return await self.export_user_data(user_id)
elif request_type == "deletion":
return await self.delete_user_data(user_id)
elif request_type == "rectification":
return await self.update_user_data(user_id)
elif request_type == "portability":
return await self.export_portable_data(user_id)
```
#### PCI DSS Compliance
```python
class PCIDSSCompliance:
def tokenize_card_data(self, card_number: str, user_id: str) -> str:
# Generate secure token
token = self.generate_secure_token()
# Store mapping in secure vault (not in application database)
self.vault.store_card_mapping(token, card_number, user_id)
return token
```
## โก Performance
### Performance Engineering Framework
```yaml
Performance Strategy:
โโโ Application Performance
โ โโโ Code optimization and profiling
โ โโโ Algorithm efficiency improvements
โ โโโ Memory management and GC tuning
โ โโโ Asynchronous processing patterns
โโโ Database Performance
โ โโโ Query optimization and indexing
โ โโโ Connection pooling and caching
โ โโโ Read replicas and sharding
โ โโโ Automated performance monitoring
โโโ Infrastructure Performance
โ โโโ Auto-scaling policies
โ โโโ Load balancing and traffic distribution
โ โโโ CDN and edge computing optimization
โ โโโ Network latency reduction
โโโ Monitoring & Optimization
โโโ Real-time performance metrics
โโโ Performance regression detection
โโโ Capacity planning and forecasting
โโโ Continuous performance testing
```
### Performance Optimization Examples
#### Go Service Performance
```go
// Memory pool for frequent allocations
var requestPool = sync.Pool{
New: func() interface{} {
return &RequestContext{
Data: make(map[string]interface{}, 10),
}
},
}
// Optimized middleware with object pooling
func PerformanceMiddleware() gin.HandlerFunc {
return gin.HandlerFunc(func(c *gin.Context) {
// Get context from pool
reqCtx := requestPool.Get().(*RequestContext)
defer func() {
reqCtx.Reset()
requestPool.Put(reqCtx)
}()
c.Next()
})
}
// Connection pool optimization
func OptimizeDatabasePool(db *sql.DB) {
db.SetMaxOpenConns(100) // Maximum active connections
db.SetMaxIdleConns(25) // Keep 25 idle connections
db.SetConnMaxLifetime(5 * time.Minute)
}
```
#### Node.js Cluster Setup
```typescript
// Cluster setup for multi-core utilization
export function setupCluster(): void {
const numCPUs = os.cpus().length;
if (cluster.isMaster) {
console.log(`Master ${process.pid} is running`);
// Fork workers
for (let i = 0; i < numCPUs; i++) {
cluster.fork();
}
cluster.on('exit', (worker) => {
console.log(`Worker ${worker.process.pid} died`);
cluster.fork();
});
} else {
// Worker processes
startServer();
}
}
```
## ๐ Disaster Recovery
### Disaster Recovery Strategy
```yaml
DR Components:
โโโ Backup Strategy
โ โโโ Automated daily database backups
โ โโโ Point-in-time recovery capabilities
โ โโโ Cross-region backup replication
โ โโโ Application state snapshots
โโโ High Availability
โ โโโ Multi-region deployment
โ โโโ Auto-failover mechanisms
โ โโโ Load balancer health checks
โ โโโ Database clustering
โโโ Recovery Procedures
โ โโโ RTO: 4 hours (Recovery Time Objective)
โ โโโ RPO: 1 hour (Recovery Point Objective)
โ โโโ Automated failover scripts
โ โโโ Manual recovery runbooks
โโโ Testing & Validation
โโโ Monthly DR testing
โโโ Chaos engineering
โโโ Backup restoration testing
โโโ Business continuity exercises
```
### Multi-Region Setup
```yaml
# terraform/multi-region.tf
provider "aws" {
alias = "primary"
region = "us-west-2"
}
provider "aws" {
alias = "secondary"
region = "us-east-1"
}
# Primary region resources
module "primary_infrastructure" {
source = "./modules/infrastructure"
providers = {
aws = aws.primary
}
region = "us-west-2"
environment = "production"
}
# Secondary region resources
module "secondary_infrastructure" {
source = "./modules/infrastructure"
providers = {
aws = aws.secondary
}
region = "us-east-1"
environment = "production-dr"
}
```
## ๐ค Contributing
### Development Process
1. **Fork the repository**
2. **Create a feature branch**: `git checkout -b feature/amazing-feature`
3. **Follow coding standards** for each language
4. **Write comprehensive tests**
5. **Run security scans**: `yarn security-scan`
6. **Update documentation** if needed
7. **Submit a pull request**
### Code Review Guidelines
- **Security**: All PRs must pass security scans
- **Testing**: Minimum 80% code coverage required
- **Performance**: No performance regressions allowed
- **Documentation**: Update relevant docs for new features
### Release Process
1. **Version bumping**: Follow semantic versioning
2. **Changelog updates**: Document all changes
3. **Security review**: Additional security review for major releases
4. **Staging deployment**: Test in staging environment
5. **Production rollout**: Gradual canary deployment
---
## ๐ Additional Resources
- [API Documentation](docs/api.md)
- [Deployment Guide](docs/deployment.md)
- [Security Best Practices](docs/security.md)
- [Performance Tuning Guide](docs/performance.md)
- [Troubleshooting Guide](docs/troubleshooting.md)
## ๐ License
This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
---
**Built with โค๏ธ for enterprise-scale ride-sharing platforms**