"connection refused" error in main application until istio-sidecar starts

Question

I have problem with start order of istio-sidecar and main application in kubernetes. When pod starts, main application getting error "connection refused" for external services. When istio-envoy proxy ready, main application starts correctly on next attempt.

While Istio is not ready, the main application has time to crash and restart 2-3 times

how do I make the main application wait for istio-sidecar to start and only then start running itself?

Answer 1

I believe if you set holdApplicationUntilProxyStarts to true will solve your issue. You can get more information about it here: https://istio.io/latest/docs/ops/common-problems/injection/ Hope it can help you.