mickael-kerjean/filestash

[bug] mount NFS share only possible with container as user root?

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#868 opened on Aug 11, 2025

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help wanted

Description

Description of the bug

When i tried to mount NFS share i got the Error MNT3ERR_ACCES until I did set the user as root in the filestash container

Step by step instructions to reproduce the bug

Use the demo docker compose file - setup any nfs share on a remote server and then try to mount this share on the filestash website

Can you replicate that error from the demo?

From the demo it is not replicable because I have everything running only in my local network (nfs share and filestash docker). For me it was replicable with the docker compose file and then trying to mount an local NFS share (with sqash_root not set!)

Observed behavior

Trying to mount the NFS share fails with the Error MNT3ERR_ACCES when docker user is not root

Expected behavior

Mounting the NFS share should work without beeing root in the container?

Contributor guide

Tech stack
javascriptnodejsdocker
Domain
backenddevops
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
DockerNFSLinux permissionsFilestash configuration
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Examine the Dockerfile and entrypoint script in the repository to understand how the container user is set. Look for any NFS mount commands or permissions handling. Check if the issue is related to missing CAP SYS ADMIN or user namespacing. Reproduce with a simple NFS share and non root user.