Easy file sharing via Docker

By | 28 Sep 2024
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To quickly setup an FTP server or SMB share using a Docker container instead of fiddling with the system daemons, I’ve found these:

FTP

For bringing up an FTP server, I’ve found Gareth Flower’s vsftpd container:

  ftp:
    image: garethflowers/ftp-server:latest
    restart: unless-stopped
    ports:
      - 3021:21
      - 40000-40009:40000-40009
    environment:
      FTP_USER: username
      FTP_PASS: password
      UID: 1001
    volumes:
      - /path/to/folder:/home/username

Here, it’s important to also map ports 40000 – 40009 for PASV FTP to work. The container automatically creates a directory for the user in /home – so you have to change the FTP_USER variable and the volume path.

Samba

For SMB/CIFS, there’s the quick and easy dockurr/samba container:

  samba:
    image: dockurr/samba:latest
    restart: unless-stopped
    ports:
      - 3445:445
    environment:
      USER: username
      PASS: password
      UID: 1001
    volumes:
      - /path/to/folder:/storage

The data gets mounted into /storage and the share will be available as Data. If you specify a port different than 445, make sure to remember it when trying to mount the share. E.g. in this case it would be: smb://hostname:3445/Data .

Samba – Advanced

If you want complete control over the Samba configuration, there’s ServerContainers/samba:

  server:
    image: ghcr.io/servercontainers/samba:latest
    restart: unless-stopped
    network_mode: host
    environment:
      TZ: Europe/London
      MODEL: MacSamba
      SAMBA_GLOBAL_STANZA: "vfs objects = acl_xattr catia fruit streams_xattr; fruit:nfs_aces = no; inherit permissions = yes; fruit:model = MacSamba; fruit:posix_rename = yes; fruit:veto_appledouble = no; fruit:wipe_intentionally_left_blank_rfork = yes; fruit:delete_empty_adfiles = yes; fruit:metadata = stream"
      SAMBA_GLOBAL_CONFIG_load_SPACE_printers: no
      SAMBA_GLOBAL_CONFIG_printing: bsd
      SAMBA_GLOBAL_CONFIG_printcap_SPACE_name: /dev/null
      SAMBA_GLOBAL_CONFIG_disable_SPACE_spoolss: yes
      SAMBA_GLOBAL_CONFIG_min_SPACE_protocol: SMB2
      SAMBA_GLOBAL_CONFIG_bind_SPACE_interfaces_SPACE_only: yes
      SAMBA_GLOBAL_CONFIG_interfaces: lo eth0
      SAMBA_CONF_SERVER_STRING: Docker Host Samba
      #SAMBA_CONF_LOG_LEVEL: 3
      ACCOUNT_username: password
      UID_username: 1000
      AVAHI_DISABLE: true
      WSDD2_DISABLE: true
      #NETBIOS_DISABLE: true
      SAMBA_VOLUME_CONFIG_semaphore: "[myshare]; path=/shares/myshare; valid users = username; guest ok = no; read only = no; browseable = yes"
    volumes:
      - /path/to/folder:/shares/myshare

As you can see, this offers a plethora of configuration options and plays especially nice with network_mode: host in most cases. Just make sure there’s no avahi and/or smbd running on the host.

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