istio-traffic-management

Configure a canary deployment in Istio by applying VirtualService resources to split traffic weights between service versions. You can route 90% of traffic to stable replicas and 10% to canary instances for progressive delivery.

A circuit breaker in a service mesh prevents cascading failures by tripping connections to unhealthy services. Istio DestinationRules define connection pools and outlier detection thresholds to automatically stop sending traffic to failing endpoints.

The best way to route traffic based on HTTP headers in Istio is declaring match conditions in VirtualService resources. These rules evaluate request attributes like URIs and headers to direct traffic to specific service subsets.

Yes, you need Istio Gateway resources for ingress traffic management. Gateway resources define ingress and egress traffic policies, configuring how external HTTP requests enter the service mesh and reach internal microservices.

Yes, you can inject faults to test resilience in an Istio service mesh. VirtualService configurations support fault injection rules that simulate errors and latency delays to validate timeout and retry policies.

Istio traffic routing rules fail when VirtualService and DestinationRule configurations conflict or target non-existent service subsets. Ensure declarative routing rules match valid Kubernetes service ports and gateway bindings.