I have istio installed using istio operator and I’m looking for help on how to to update istio-sideca-injector.
I can do it manually but would like to how to automate this for future installation using istio installation via operator.
kubectl edit configmap istio-sidecar-injector -n istio-system
containers: - name: istio-proxy
would like to add this in:
lifecycle: preStop: exec: command: ["/bin/sh", "-c", "while [ $(netstat -plunt | grep tcp | grep -v envoy | wc -l | xargs) -ne 0 ]; do sleep 1; done"]
The context is to prevent proxy from shutting down before application finishing up its termination process including making connections out/in etc…
Please let me know if there is an option to update/patch configmap via operator / operator template etc…
Help is much appreciated.