Ready to Serve! Speeding-Up Startup Time of Istio-Powered Workloads

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" summary

Measured Istio-enabled pod startup increases from about 3.5s to ~8.5s (≈+5s) when using sidecar injection; timing comes from per-container tracing spans. Practical fixes reclaim most of that: Istio CNI cuts ≈3s by moving iptables setup out of the init container, static Envoy startup config saves up to 2s by avoiding XDS blocking, and tuning the readiness probe to 1s saves ~0.5s; manual sidecar injection and probing Envoy directly add small further gains but have operational tradeoffs.

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" chapters (4)

1. 0:00Start
2. 16:15take a look at playing around with the readiness probe
3. 27:01create an invoice configuration file
4. 27:28replace the startup configuration