Edit the mount point of the PostgreSQL database to match the VOLUME declaration in the official postgres image Dockerfile

Otherwise docker-compose creates an unamed volume mounted at /var/lib/postgresql/data along with the jupyterhub-db-data volume.

Author: dalg24

.env

@@ -39,7 +39,7 @@ DATA_VOLUME_CONTAINER=/data
 DB_VOLUME_HOST=jupyterhub-db-data
 
 # Postgres volume container mount point
-DB_VOLUME_CONTAINER=/var/lib/postgresql/data/jupyterhub
+DB_VOLUME_CONTAINER=/var/lib/postgresql/data
 
 # The name of the postgres database containing JupyterHub state
 POSTGRES_DB=jupyterhub