Challenges and Best Practices While Upgrading Istio in a Production...
summary
Upgrading Istio in production requires concrete steps: export all CRDs and configs as YAML snapshots for fast rollback, run istioctl x precheck and collect istioctl bug-report logs, and monitor Grafana for specific CPU/memory and proxy-version spikes. Decouple control plane, gateways and traffic concerns, note that a default install adds ~15 CRDs and mutating webhooks, and plan rolling or canary upgrades (or a tested “lazy” jump) while restarting deployments so sidecars actually match the control plane.
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chapters (13)
- 0:00Istio upgrades in production
- 1:06What Istio is
- 2:52Why upgrades matter
- 4:57Decoupling Istio components
- 6:46Pre-upgrade checklist
- 10:43Custom configs to watch
- 11:44Upgrade strategies
- 13:31In-place vs rolling upgrades
- 14:34Lazy upgrades
- 15:19Canary upgrades
- 16:21Post-upgrade steps
- 16:44Istio upgrade demo
- 27:04Q&A
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