DevOps & CI/CD
Bug Report
Istio 503 "upstream connect error" in the first seconds of every pod: app started before the proxy
After adding Istio to our EKS cluster, every rollout produced a burst of failures: startup jobs could not reach the database and calls returned 503 upstream connect error. The application started before its Envoy sidecar was ready. How we proved it and fixed it with native sidecars and holdApplicationUntilProxyStarts.