Quale meccanismo in Kubernetes riavvia un contenitore quando supera il limite di memoria?

In Kubernetes, when a container exceeds its memory limit, the OOM Killer (Out Of Memory Killer) mechanism at the kernel level is triggered. When the container consumes more memory than specified in the limit, the kernel kills the process inside the container, leading to the container's termination. Kubernetes detects that the container has exited with an error and restarts it according to the restart policy (restartPolicy). Therefore, the container restart is not performed directly by Kubernetes, but as a reaction to the OOM Killer event.