In Docker Compose, when I mount an empty host volume to a location that already has data in the container, than this data is copied to the empty host volume on the first run.

E.g. if I use the nginx image and mount my empty host volume nginx-config to /etc/nginx in the nginx container then on the first start of the container everything from /etc/nginx is copied to my host volume nginx-config.

Meanwhile I am using Kubernetes and wondering how that's done in kubernetes? When I mount a empty PersistentVolume to an container at /etc/nginx, nothing is automatically copied to it ):