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Canary Deployments with Istio

Progressive traffic shifting from old to new service versions using Istio weighted routing and deployment analysis.

🎯Key Takeaways
Subset = group of pods with a label selector
VirtualService weight controls traffic split
Combine with metrics to automate promotion/rollback

Canary Deployments with Istio

Progressive traffic shifting from old to new service versions using Istio weighted routing and deployment analysis.

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What you'll learn
  • Subset = group of pods with a label selector
  • VirtualService weight controls traffic split
  • Combine with metrics to automate promotion/rollback

Canary with Weighted Routing

Istio canary deployments use DestinationRules to define subsets (v1/v2) and VirtualServices to split traffic. You shift 5% → 10% → 50% → 100% while monitoring error rates and latency. Flagger automates this based on Prometheus metrics.

Key takeaways

  • Subset = group of pods with a label selector
  • VirtualService weight controls traffic split
  • Combine with metrics to automate promotion/rollback

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