Kubernetes has multiple levels of timeouts for calls, including at the load balancer, inbound to the ingress itself, and at the individual ingress resources.

Assuming you have the first two configured and are still hitting a timeout on your  app, this is the annotation you need to add to your service’s ingress resource to boost its timeout:

nginx.ingress.kubernetes.io/proxy-read-timeout: "3600"

This will change it up to 1 hour from 1 minute.