Folder permissions for delete/upload - with a file mount

[psyciknz]

I've taken the adaption of the dockerfile setting the permissions have the following mounts in my compose:

 - /hdd/webdav:/webdav
      - /hdd/magazines:/webdav/magazines
      - /media/Documents/:/webdav/documents

So /hdd/webdav is a local folder to the machine. The other two are samba mounts.

My user has read/write to all these folders. And if I upload/delete to the /webdav folder it is fine. But the mounted folders have a persmissions error (I can see 403 in the logs).

Is the container using a www-data user? If I didn't have one of those on the host, should i make one, so I can set access?