Nginx: disable open_file_cache if media is on NFS

[leccelecce]

Proposed change

This change disables nginx's open_file_cache if the /media/frigate/clips directory is detected to be an NFS mount.

#17118 (reply in thread)

Above comment covers the investigation into this in more details; TLDR = the creator of nginx says don't use open_file_cache with NFS mounts due to the filesystem not properly observing unix file semantics: https://trac.nginx.org/nginx/ticket/478

The nginx ticket is from 2014, but seeing as I see an issue without the fix, and it goes away with the fix, fair to assume it's still valid.

I have tested this locally in my devcontainer (non-NFS) and my test instance (NFSv4) and it seems to work fine. I don't observe any performance degradation browsing around the UI. Once betas start and a broader user-base is testing this, happy to look into any performance concerns.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code
• Documentation Update

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• UI changes including text have used i18n keys and have been added to the en locale.
• The code has been formatted using Ruff (ruff format frigate)

[netlify]

✅ Deploy Preview for frigate-docs ready!

Name	Link
🔨 Latest commit	314b842
🔍 Latest deploy log	https://app.netlify.com/sites/frigate-docs/deploys/67dac52f9eb8f80008aa9aa5
😎 Deploy Preview	https://deploy-preview-17251--frigate-docs.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[leccelecce]

Possibly needs re-opening

Also interestingly the recommendation seems to also be not to use sendfile on with NFS mounts

https://www.ateamsystems.com/tech-blog/understanding-nginxs-sendfile-parameter-and-its-implications-with-nfs/?utm_source=chatgpt.com