Use Hetzner storage box as docker volume

First create the directory on the share e.g. dock_vol

mkdir /mnt/backup/dock_vol

Create volume with cifs driver

docker volume create \
	--driver local \
	--opt type=cifs \
	--opt device=//uxxxxxx.your-storagebox.de/backup/dock_vol \
	--opt o=addr=uxxxxxx.your-storagebox.de,iocharset=utf8,rw,username=uxxxxxx,password=xxxxxxxxxx,file_mode=0660,dir_mode=0660 \
	--name cifs_volume

This is enough, you don't need to mount the share on host as well.

If the app running in container is running and trying to write as a different user than root, you will need to adjust the permissions in above command that creates volumes to …file_mode=0777,dir_mode=0777…, as per this example.

Ansible playbook task example:

- hosts: "myhost"
  pre_tasks:
    - name: Create docker volume on shared storagebox
      docker_volume:
        name: cifs_volume
        driver_options:
          type: cifs
          device:  "device=//uxxxxxx.your-storagebox.de/backup/dock_vol"
          o: "addr=uxxxxxx.your-storagebox.de,iocharset=utf8,rw,username=uxxxxxx,password=xxxxxxxxxx,file_mode=0660,dir_mode=0660"
      tags: volume

Test example

docker run -d \
  --name=nginxtest \
  -v cifs_volume:/usr/share/nginx/html \
  nginx:latest

Tested on

Docker 23.0.1
ansible 2.9.27

References

https://docs.docker.com/storage/volumes/#create-cifssamba-volumes

antisaWiki

Table of Contents

Use Hetzner storage box as docker volume

Tested on

See also

References