FileFlows docker work node not working, ffmpeg can't be found

Apps and Virtualization
1

Hi everyone, my FileFLows server works great with a windows node in another machine, but with the truenas app node it simply doesn’t work at all. Troubleshooting it I found that the FFmpeg DockerMod wasn’t downloading (no network restrictions). Anyone able to reproduce it? I’m talking to the developer and he isn’t able to reproduce right now.

2025-09-12 00:20:45.904 [INFO] -> ======================================================================
2025-09-12 00:20:45.904 [INFO] -> Executing Flow Element 3: FFMPEG Builder: Start [FileFlows.VideoNodes.FfmpegBuilderNodes.FfmpegBuilderStart]
2025-09-12 00:20:45.904 [INFO] -> ======================================================================
2025-09-12 00:20:45.904 [INFO] -> Working File: /midia/Downloads/02_TESTE/A.Complete.Unknown.2024.1080p.AMZN.WEB-DL.DDP5.1.H.264-APEX.mkv
2025-09-12 00:20:45.904 [INFO] -> Current Flow Part: FfmpegBuilderStart
2025-09-12 00:20:45.904 [INFO] -> Clearing failure reason: 'VideoFile' PreExecute failed
2025-09-12 00:20:45.904 [INFO] -> ToolPathVariable 'FFmpeg' = '/usr/local/bin/ffmpeg'
2025-09-12 00:20:45.904 [INFO] -> Tool 'FFmpeg' variable = '/usr/local/bin/ffmpeg'
2025-09-12 00:20:45.904 [ERRR] -> FFmpeg does not exist: /usr/local/bin/ffmpeg
2025-09-12 00:20:45.904 [ERRR] -> 'FfmpegBuilderStart' PreExecute failed
Json Message Sent: { Method = UpdateLibraryFile, Params = System.Object[] }
2025-09-12 00:20:45.904 [INFO] -> Flow Element execution time: 00:00:00.0004964
2025-09-12 00:20:45.904 [INFO] -> Flow Element output: -1
2025-09-12 00:20:45.904 [INFO] -> ======================================================================
2

Update: It appears that the DockerMods aren’t able to be installed on the container, some kind of permission issue. Container Shell:


# ls
Data  DockerMods  FlowRunner  Logs  ManuallyAdded  Node  Server  common  docker-entrypoint.sh
# cd DockerMods
# ls
'0001_Calibre_[1].sh'
# ^C
# bash '0001_Calibre_[1].sh'
Calibre is not installed. Installing...
rm: cannot remove '/var/cache/apt/archives/partial/*.deb': Permission denied
W: Problem unlinking the file /var/lib/apt/lists/partial/download.docker.com_linux_ubuntu_dists_noble_InRelease - PrepareFiles (13: Permission denied)
W: Problem unlinking the file /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_noble_InRelease - PrepareFiles (13: Permission denied)
W: Problem unlinking the file /var/lib/apt/lists/partial/security.ubuntu.com_ubuntu_dists_noble-security_InRelease - PrepareFiles (13: Permission denied)
E: can not open /var/lib/apt/lists/partial/security.ubuntu.com_ubuntu_dists_noble-security_InRelease - fopen (13: Permission denied)
E: The repository 'http://security.ubuntu.com/ubuntu noble-security InRelease' provides only weak security information.
W: Problem unlinking the file /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_noble-updates_InRelease - PrepareFiles (13: Permission denied)
E: can not open /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_noble-updates_InRelease - fopen (13: Permission denied)
E: The repository 'http://archive.ubuntu.com/ubuntu noble-updates InRelease' provides only weak security information.
W: Problem unlinking the file /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_noble-backports_InRelease - PrepareFiles (13: Permission denied)
W: Problem unlinking the file /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_noble-backports_InRelease - PrepareFiles (13: Permission denied)
E: can not open /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_noble-backports_InRelease - fopen (13: Permission denied)
E: The repository 'http://archive.ubuntu.com/ubuntu noble-backports InRelease' provides only weak security information.
An error occurred. Exiting...
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