Implement service mesh (Istio, Linkerd) for service-to-service communication, traffic management, security, and observability.

Service Mesh Implementation Table of Contents [Overview]( overview) [When to Use]( when to use) [Quick Start]( quick start) [Reference Guides]( reference guides) [Best Practices]( best practices) Overview Deploy and configure a service mesh to manage microservice communication, enable advanced traffic management, implement security policies, and provide comprehensive observability across distributed systems. When to Use Microservice communication management Cross cutting security policies Traffic splitting and canary deployments Service to service authentication Request routing and retries Distributed tracing integration Circuit breaker patterns Mutual TLS between services Quick Start Minimal working example: Reference Guides Detailed implementations in the references/ directory: Guide Contents [Istio Core Setup](references/istio core setup.md) Istio Core Setup [Virtual Service and Destination Rule](references/virtual service and destination rule.md) Virtual Service and Destination Rule [Security Policies](references/security policies.md) Security Policies [Observability Configuration](references/observability configuration.md) Observability Configuration [Service Mesh Deployment Script](references/service mesh deployment script.md) Service Mesh Deployment Script Best Practices ✅ DO Enable mTLS for all workloads Implement proper authorization policies Use virtual services for traffic management Enable distributed tracing Monitor resource usage (CPU, memory) Use appropriate sampling rates for tracing Implement circuit breakers Use namespace isolation ❌ DON'T Disable mTLS in production Allow permissive traffic policies Ignore observability setup Deploy without resource requests/limits Skip sidecar injection validation Use 100% sampling in high traffic systems Mix service versions without proper routing Neglect authorization policies

service-mesh-implementation