Production Security Checklist

The gateway is designed with a "Zero Trust" security philosophy, minimizing the attack surface by default. However, a secure deployment requires coordination between the gateway's internal features and your infrastructure.

Gateway Security Features (Built-in)

When correctly configured, the gateway provides Enterprise-Grade security covering the following layers:

1. Zero-Trust Access Layer

• Query Whitelisting: With WhitelistMode::Enforce, the gateway rejects all arbitrary queries. This neutralizes 99% of GraphQL-specific attacks (introspection abuse, deep nesting, resource exhaustion) effectively treating GraphQL as a secured set of RPCs.
• Introspection Disabled: Schema exploration is blocked in production.

2. Browser Security Layer

• HSTS: Strict-Transport-Security enforces HTTPS usage.
• CSP: Content-Security-Policy limits script sources using 'self'.
• CORS: Strict Cross-Origin Resource Sharing controls.
• XSS Protection: Headers to prevent cross-site scripting and sniffing.

3. Infrastructure Protection Layer

• DoS Protection: Lock poisoning prevention (using parking_lot) and safe error handling (no stack leaks).
• Rate Limiting: Token-bucket based limiting with burst control.
• IP Protection: Strict IP header validation (preventing X-Forwarded-For spoofing).

Operational Responsibilities (Ops)

While the gateway code is secure, your deployment environment must handle the following external responsibilities:

TLS / SSL Termination

The gateway speaks plain HTTP. You must run it behind a reverse proxy (e.g., Nginx, Envoy, AWS ALB, Cloudflare) that handles:

• HTTPS Termination: Manage certificates and TLS versions (TLS 1.2/1.3 recommended).
• Force Redirects: Redirect all HTTP traffic to HTTPS.

Secrets Management

Never hardcode sensitive credentials. Use environment variables or a secrets manager (Vault, AWS Secrets Manager, Kubernetes Secrets) for:

• REDIS_URL
• API Keys
• Database Credentials
• Private Keys (if using JWT signing)

Authentication & Authorization

The gateway validates the presence of auth headers (via middleware), but your logic must define the validity:

• JWT Verification: Ensure your EnhancedAuthMiddleware is configured with the correct public keys/secrets.
• Role Limits: Verify that identified users have permission to execute specific operations.

Network Segmentation

• Internal gRPC: The gRPC backend services should typically be isolated in a private network, accessible only by the gateway.
• Redis Access: Restrict Redis access to only the gateway instances.

Verification

Before deploying to production, run the included comprehensive security suite:

# Run the 60+ point security audit script
./test_security.sh

A passing suite confirms that all built-in security layers are active and functioning correctly.