overlay2 fill's up all / space

[jozegros]

The problem we have with is docker is , that it completely fill our disk. It creates this overlay2 disk, like shown below, which fill out our / disk to 100%.

Filesystem Size Used Avail Use% Mounted on
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 100K 16G 1% /dev/shm
tmpfs 16G 769M 15G 5% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/nvme0n1p1 150G 73G 78G 49% /
overlay 150G 73G 78G 49% /var/lib/docker/overlay2/cf6e99a5a90769b804228f7b4dbecf3b66692ee292571e2a83c7ef79d5c07990/merged
overlay 150G 73G 78G 49% /var/lib/docker/overlay2/7f34b22444bb6e5d6ca00419356220f0d031fcea4a938894fd47a2a96833b20d/merged
tmpfs 3.1G 0 3.1G 0% /run/user/1001

The main consumers are folders :

/var/lib/docker/overlay2/7f34b22444bb6e5d6ca00419356220f0d031fcea4a938894fd47a2a96833b20d/merged/var/lib/postgresql/14/main
/var/lib/docker/overlay2/7f34b22444bb6e5d6ca00419356220f0d031fcea4a938894fd47a2a96833b20d/diff/var/lib/postgresql/14/main

The only solution we have thus far is the rebooting the VM; after the reboot it takes about one week for disk to fill again.

We have also tried with commands like:
docker container prune -f
docker volume prune -f
docker image prune -ff

We have run this commands multiple times, and sometimes they are succsessfull, but in most cases no.

The command to run nominatim docker is :
docker run -it --shm-size=1g
-e PBF_URL=https://download.geofabrik.de/europe/monaco-latest.osm.pbf
-e REPLICATION_URL=https://download.geofabrik.de/europe/monaco-updates/
-e IMPORT_WIKIPEDIA=false
-e NOMINATIM_PASSWORD=very_secure_password
-v nominatim-data:/var/lib/postgresql/14/main
-p 8080:8080
--name nominatim
mediagis/nominatim:4.2