Kubernetes default liveness and readiness probe

Question

I wanted to know what kubernetes does to check liveness and readiness of a pod and container by default.

I could find the document which mentions how I can add my custom probe and change the probe parameters like initial delay etc. However, could not find the default probe method used by k8s.

Answer 1

TL/DR: there is no default readiness probe ("should I send this pod traffic?") and the default liveness probe ("should I kill this pod?") is just whether the container is still running.