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Bind mounts from drives other than C: don't work

Open Aaron-Rumpler opened this issue 1 year ago • 1 comments

Description

Attempting to bind mount from a drive other than C: into a container doesn't work. Docker bind mounts the correct path from inside the docker-desktop WSL 'distro', but the path isn't mounted into WSL. I've tested this both with an external USB drive as well as SMB shares that are mapped to a drive letter.

Reproduce

  1. Map a SMB network share to a drive letter (J: in this example)
  2. docker run -it --rm --mount type=bind,src=J:\,dst=/mnt/j debian

I receive the following error ([...] used as placeholder):

docker: Error response from daemon: invalid mount config for type "bind": bind source path does not exist: /run/desktop/mnt/host/uC/[SMB_SERVER]/[SMB_SHARE]/[PATH].
See 'docker run --help'.

Looking into the docker-desktop WSL 'distro', I see that /run/desktop/mnt/host/uC/[SMB_SERVER]/[SMB_SHARE]/[PATH] has been created, but doesn't have the network share mounted to it. I observer the same behaviour with external USB drives.

Expected behavior

The UNC path of J: (/run/desktop/mnt/host/uC/[SMB_SERVER]/[SMB_SHARE]/[PATH]) should have been mounted onto the WSL 'distro' with the drvfs driver before creating the container.

docker version

Client:
 Version:           27.1.1
 API version:       1.46
 Go version:        go1.21.12
 Git commit:        6312585
 Built:             Tue Jul 23 19:57:57 2024
 OS/Arch:           windows/amd64
 Context:           desktop-linux

Server: Docker Desktop 4.33.1 (161083)
 Engine:
  Version:          27.1.1
  API version:      1.46 (minimum version 1.24)
  Go version:       go1.21.12
  Git commit:       cc13f95
  Built:            Tue Jul 23 19:57:19 2024
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.7.19
  GitCommit:        2bf793ef6dc9a18e00cb12efb64355c2c9d5eb41
 runc:
  Version:          1.7.19
  GitCommit:        v1.1.13-0-g58aa920
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

docker info

Client:
 Version:    27.1.1
 Context:    desktop-linux
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.16.1-desktop.1
    Path:     C:\Program Files\Docker\cli-plugins\docker-buildx.exe
  compose: Docker Compose (Docker Inc.)
    Version:  v2.29.1-desktop.1
    Path:     C:\Program Files\Docker\cli-plugins\docker-compose.exe
  debug: Get a shell into any image or container (Docker Inc.)
    Version:  0.0.34
    Path:     C:\Program Files\Docker\cli-plugins\docker-debug.exe
  desktop: Docker Desktop commands (Alpha) (Docker Inc.)
    Version:  v0.0.14
    Path:     C:\Program Files\Docker\cli-plugins\docker-desktop.exe
  dev: Docker Dev Environments (Docker Inc.)
    Version:  v0.1.2
    Path:     C:\Program Files\Docker\cli-plugins\docker-dev.exe
  extension: Manages Docker extensions (Docker Inc.)
    Version:  v0.2.25
    Path:     C:\Program Files\Docker\cli-plugins\docker-extension.exe
  feedback: Provide feedback, right in your terminal! (Docker Inc.)
    Version:  v1.0.5
    Path:     C:\Program Files\Docker\cli-plugins\docker-feedback.exe
  init: Creates Docker-related starter files for your project (Docker Inc.)
    Version:  v1.3.0
    Path:     C:\Program Files\Docker\cli-plugins\docker-init.exe
  sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc.)
    Version:  0.6.0
    Path:     C:\Program Files\Docker\cli-plugins\docker-sbom.exe
  scout: Docker Scout (Docker Inc.)
    Version:  v1.11.0
    Path:     C:\Program Files\Docker\cli-plugins\docker-scout.exe

Server:
 Containers: 0
  Running: 0
  Paused: 0
  Stopped: 0
 Images: 1
 Server Version: 27.1.1
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Using metacopy: false
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 1
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 2bf793ef6dc9a18e00cb12efb64355c2c9d5eb41
 runc version: v1.1.13-0-g58aa920
 init version: de40ad0
 Security Options:
  seccomp
   Profile: unconfined
 Kernel Version: 5.15.153.1-microsoft-standard-WSL2
 Operating System: Docker Desktop
 OSType: linux
 Architecture: x86_64
 CPUs: 24
 Total Memory: 7.605GiB
 Name: docker-desktop
 ID: a6add0af-cc41-4e12-af5b-5f457a656875
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 HTTP Proxy: http.docker.internal:3128
 HTTPS Proxy: http.docker.internal:3128
 No Proxy: hubproxy.docker.internal
 Labels:
  com.docker.desktop.address=npipe://\\.\pipe\docker_cli
 Experimental: false
 Insecure Registries:
  hubproxy.docker.internal:5555
  127.0.0.0/8
 Live Restore Enabled: false

WARNING: No blkio throttle.read_bps_device support
WARNING: No blkio throttle.write_bps_device support
WARNING: No blkio throttle.read_iops_device support
WARNING: No blkio throttle.write_iops_device support
WARNING: daemon is not using the default seccomp profile

Diagnostics ID

98DB93DB-C3B2-4238-9F49-77B4C5B861DF/20240819065953

Additional Info

No response

Aaron-Rumpler avatar Aug 19 '24 12:08 Aaron-Rumpler

I forgot to mention that if I manually mount the network share onto the directory created for the share /run/desktop/mnt/host/uC/[SMB_SERVER]/[SMB_SHARE], the bind-mounting that drive onto new containers works as expected.

Aaron-Rumpler avatar Aug 25 '24 23:08 Aaron-Rumpler

Any update on this? This is a blocker for us using Docker with our students.

Aaron-Rumpler avatar Dec 15 '24 05:12 Aaron-Rumpler