Expected behavior File system notification works with mounted directories. Actual behavior No notification is perceived. Information docker beta, version 1.11.1-beta11 (build 2789) b0bc231 Steps to reproduce the behavior mount a volume, like so: docker run -ti -v C:\proj:/app <your_image> /bin…

IMO the windows mount is done with CIFS, which may not support the mechanisms needed to have low level IO functions. see: https://www.google.at/search?q=+inotify-tools+cif&ie=utf-8&oe=utf-8&gfe_rd=cr&ei=z9E4V4CsCsuk8we72orQCg#q=inotify-tools+cifs+problem&tbas=0

pmario, do you have a link that documents this is the case? As of samba 3.0.25 inotify events should be supported: https://wiki.samba.org/index.php/Samba_3.0_Features_added/changed

I don’t think the relevant code is in the Linux kernel any longer: http://stackoverflow.com/a/10107889/2942 https://lists.samba.org/archive/linux-cifs-client/2009-April/004319.html

Have there been any developments on this front? Seems like a pretty critical feature missing from windows for this long.

Sorry, no progress to report. Docker for Windows relies on SMB/CIFS support in Linux, and since propagating filesystem notifications is not supported our options are limited.

I made a really gross hack which just scans a directory of files recursively, over and over, looking at the modified times of files and if they changed since the last scan it fires an event. The file system events don’t fire but the files and their metadata do change successfully, so this technique …

What programming language and framework are you using? Most dev web servers will have fallback mode that resort to filesystem polling in cases like this.

I have developed the script that sits on Windows host, watches changes in directories mounted by Docker containers and notifies containers once file change occurs. The script is available as pip package ( PyPI ) pip install docker-windows-volume-watcher Then you can just run the script without any a…

docker-volume-watcher works great for me! It would be great having it integrated inside Docker for Windows. Mikhail, thank you very much for developing this util.

File system watch does not work with mounted volumes

Docker Desktop

pmario (Mario Pietsch) August 15, 2016, 8:20pm 5

Hi Michael,
In May I was just guessing, how the stuff works, from what I could see, since there was (still is) no accessible source code. https://youtu.be/7da-B3rY9V4?t=2094 here’s the proof. Windows is different

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File system watch does not work with mounted volumes

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