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kbfs service: Do not assume fuse is installed #73930

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@maljub01 maljub01 commented Nov 22, 2019

Motivation for this change

Currently the kbfs service does not work unless fuse is installed as a system package.

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nix-review --run "nix-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits
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@worldofpeace worldofpeace commented Nov 22, 2019

Hmm, we've actually hardcoded fusermount in kbfs

But I think this might have had unintended side-effects.
I believe this needs to be suid, which it won't when it's in the /nix/store.
That's why the path here is at /run/wrappers.

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@worldofpeace worldofpeace commented Nov 22, 2019

Also, it's perfectly fine to assume this in NixOS because the following configuration will be applied on every system using NixOS

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@maljub01 maljub01 commented Nov 26, 2019

@worldofpeace thanks for the response and explanation.

It seems something is broken in my current setup. I'll close this PR for now while I investigate it.

@maljub01 maljub01 closed this Nov 26, 2019
@maljub01 maljub01 deleted the maljub01:patch-3 branch Nov 26, 2019
@worldofpeace worldofpeace mentioned this pull request Dec 9, 2019
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