how to share the pcloud mount with other containers

[milsanore]

tl;dr Any suggestions on how to share the pcloud mount with other containers?
Can I pass fuse arguments as env vars to this container?

Hi, thank you for putting this repo together, it helped me run pcloud on my raspberry pi.

I would like to also run syncthing on my server (in docker), so that i can synchronise a pcloud folder to a folder on my phone.
It sounds crazy, but pcloud cannot do this (nor the other cloud storage providers, including any "offline" availability options).

That means that I need to mount a pcloud subfolder in my syncthing container, and then share it with my phone.
For example:

syncthing:
  container_name: syncthing
  image: syncthing/syncthing:latest
  volumes:
    - syncthing-config:/config
    - ~/syncthing-sync:/var/syncthing
    # THIS BADBOY 👇
    - ~/pcloud:/opt/pcloud

However, starting this container fails with the error:
Error response from daemon: error while creating mount source path '/home/user/pcloud': mkdir /home/user/pcloud: file exists

It turns out that because the pcloud directory is a fuse mount, trying to mount it inside another container is a little tricky.
I think the fuse volume needs to be mounted with the allow_root option:
- https://stackoverflow.com/a/61686833
- https://serverfault.com/questions/943979/using-a-fuse-mounted-directory-as-a-docker-volume

It seems this is really a pcloudcom/console-client issue.
I saw your comment here: pcloudcom/console-client#184
Any suggestions on how to share the pcloud mount with other containers?
Thank you 🙏

[jlloyola]

I haven't tried mounting the pcloud volume in more than one container.
I created this image to be able to access pcloud from a raspberry pi (like in your case).
Running the container as root will cause file permission issues between the host and the container.
Some ideas to try out:

• Try creating the mount directory (in the host) as noted here. Confirm the directory exists and has the appropriate permissions with ls -ld <path>
• Start this container first before the syncthing container.
• Run the syncthing container with the same uid, gid as the pcloud container.