I have created a docker container on piwigo image. If I switch into the container using docker exec -it bash, I can see the container's filesystem. It seems to me that this is an overlay of the host's filesystem so that in the container directories /config/www/gallery/upload/xxxx corresponds to /var/lib/docker/volumes/piwigo_data/_data/www/gallery/upload/xxxx in the host directory. (This is the docker volume piwigo-data_data created before I created the container)
Here xxxx corresponds to the photos I have downloaded into piwigo.
Am I correct?
