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Proxmox bind mounts are a nightmare for user permissions (lemmy.world)

submitted 2 months ago* (last edited 2 months ago) by ama_coffee_addict@lemmy.world to c/selfhosted@lemmy.world

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Hi, I need help to understand what I am doing wrong with my setup.

I am running a proxmox node (pve) where I have mounted my nfs storage (containing backups from my old server) on the host and assigning them to containers using pct set command.

On Host:I am setting the user permissions to the mounted folder so that the user from lxc can rw to it and the sub-folders(or atleast I thought it would be possible).

On Unpreviledged LXC:The mount is recognized and is accessible with the correct user permissions to rw

The docker container created inside the lxc is unable to read/write to this storage even though they are assigned to the correct user id 1000. The docker setup is logging errors and won't start up.

Appreciate the help!

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[–] andreas@lemmy.kfed.org 1 points 1 month ago

I run dozens of proxmox LXCs, most with docker, but can confirm that while proxmox is fantastic to host NFS shares, it is near impossible to mount external ones to LXCs without doing some weirdness on the host. best practice would be to turn the NFS into samba or something and configure the docker vms and LXCs to use that (45drives has awesome repos on GitHub that work really well; that's how I worked around that issue) the only downside is you need to usually offload everything as a backup first before the switch.