Istio is a service mesh platform that manages communication between microservices in distributed applications. It provides traffic management, security policies, and observability features by deploying sidecar proxies alongside your services, allowing you to control routing, enforce access policies, inject faults for testing, and monitor service behavior without changing application code. Developers use Istio to simplify microservice networking, improve resilience with circuit breaking and retries, and gain visibility into service interactions across Kubernetes and other platforms.

469 open issues · last updated Jul 22, 2026