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Interactive Explainer

Istio VirtualServices: Traffic Routing

VirtualService routing rules: weighted splits, header matching, URI rewriting, retries, timeouts, and fault injection.

🎯Key Takeaways
VirtualService = routing rules (where traffic goes)
Weighted splits enable canary deployments
Fault injection: test circuit breakers and retry logic in production

Istio VirtualServices: Traffic Routing

VirtualService routing rules: weighted splits, header matching, URI rewriting, retries, timeouts, and fault injection.

~1 min read
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What you'll learn
  • VirtualService = routing rules (where traffic goes)
  • Weighted splits enable canary deployments
  • Fault injection: test circuit breakers and retry logic in production

VirtualService Capabilities

VirtualService defines routing rules for a service: weight-based splits (70% v1, 30% v2), header-based routing (cookie: beta=true → v2), URI prefix matching, path rewriting, retries (3 attempts, 25ms perTryTimeout), timeouts (5s), and fault injection (500ms delay, 1% abort with 503).

Key takeaways

  • VirtualService = routing rules (where traffic goes)
  • Weighted splits enable canary deployments
  • Fault injection: test circuit breakers and retry logic in production

Related concepts

Explore topics that connect to this one.

  • Istio DestinationRules: Traffic Policy
  • Istio Ingress & Egress Gateways
  • traffic splitting canary

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Istio DestinationRules: Traffic Policy

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Istio DestinationRules: Traffic Policy

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