Cloudron `/system/filesystems` fails with LUKS device alias

[nostrdev]

The Cloudron dashboard does not show disk usage (not in v10.0.2 nor earlier versions for at least a year). The request to:

/api/v1/system/filesystems

returns:

{
  "status": "Internal Server Error",
  "message": "Cannot read properties of undefined (reading 'contents')"
}

Environment

• Cloudron: 10.0.2
• Ubuntu: 24.04.2 LTS
• Kernel: 6.8.0-111-generic
• Hosting: Hetzner
• Storage layout: NVMe → mdadm RAID1 → LUKS → ext4

The root filesystem itself is healthy and reports usage correctly:

Filesystem                                            Type     1B-blocks          Used        Avail Use% Mounted on
/dev/mapper/luks-a7030049-5aad-45e0-915c-3073a14fb4ac ext4 1883388502016 1367907303424 419734818816  77% /

Box error

The Box log contains:

shell: df: df -B1 --output=source,fstype,size,used,avail,pcent,target
shell: df: df -B1 --output=source,fstype,size,used,avail,pcent,target /home/yellowtent/platformdata

{
  path: '/api/v1/system/filesystems',
  status: 500,
  error: HttpError: Cannot read properties of undefined (reading 'contents')
      at getFilesystems (file:///home/yellowtent/box/src/routes/system.js:153:28) {
    status: 500,
    internalError: TypeError: Cannot read properties of undefined (reading 'contents')
        at Object.getFilesystems (file:///home/yellowtent/box/src/system.js:112:42),
    details: null
  }
}

The relevant code in /home/yellowtent/box/src/system.js is:

for (const stdPath of standardPaths) {
    const [dfPathError, diskInfo] = await safe(df.file(stdPath.path));
    if (dfPathError) throw new BoxError(BoxError.FS_ERROR, `Error getting std path: ${dfPathError.message}`);
    filesystems[diskInfo.filesystem].contents.push(stdPath);
}

Apparent cause

The two df invocations identify the same root device using different names.

An unqualified df reports:

/dev/dm-0  ext4  ...  /

A path-specific df reports:

/dev/mapper/luks-a7030049-5aad-45e0-915c-3073a14fb4ac  ext4  ...  /

These are aliases for the same device:

/dev/mapper/luks-a7030049-5aad-45e0-915c-3073a14fb4ac → /dev/dm-0

It appears that Cloudron initially indexes filesystems using the literal source returned by the unqualified df:

filesystems[dfEntry.filesystem] = ...

It then looks up the path-specific result using the other device alias:

filesystems[diskInfo.filesystem].contents.push(stdPath);

As a result, filesystems[diskInfo.filesystem] is undefined and the API throws while accessing .contents.

It may be necessary to normalize device paths before using them as keys, or fall back to matching by mountpoint/device identity.

Has anyone else encountered this with an mdadm + LUKS root filesystem? Is a fix planned for an upcoming Cloudron release?

[girish]

Seems like a valid bug, we can take a look after Cloudron 10.0 . Logged it at https://git.cloudron.io/platform/box/-/work_items/906