Kus Kubernetes salvestab StatefulSeti kaudu hallatavate konteinerite andmed ja oleku?

In Kubernetes, the data and state of containers managed via StatefulSet are stored in external storage connected to the pods through PersistentVolume (PV) and PersistentVolumeClaim (PVC).

StatefulSet ensures that each pod receives its own unique and stable volume for data storage, which remains independent of the pod's lifecycle. These volumes are mounted into containers and ensure state persistence during restarts or recreations of pods.

Therefore, Kubernetes does not store data inside the containers or pods themselves (which are ephemeral), but uses PersistentVolumes, which can be implemented on various storage types (e.g., network disks, cloud storage, local disks, etc.).