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This has been reported by @qknight in his Stack Overflow question: https://stackoverflow.com/q/50678639 The correct way to override a single value would be to use something like this: systemd.services.nagios.serviceConfig.Restart = lib.mkForce "no"; However, this doesn't work because the check is applied for the attrsOf type and thus the attribute values might still contain the attribute set created by mkOverride. The unitOption type however did already account for this, but at this stage it's already too late. So now the actual value is unpacked while checking the values of the attribute set, which should allow us to override values in serviceConfig. Signed-off-by: aszlig <aszlig@nix.build> Cc: @edolstra, @qknight
Nixpkgs is a collection of packages for the Nix package manager. It is periodically built and tested by the Hydra build daemon as so-called channels. To get channel information via git, add nixpkgs-channels as a remote:
% git remote add channels git://github.com/NixOS/nixpkgs-channels.git
For stability and maximum binary package support, it is recommended to maintain
custom changes on top of one of the channels, e.g. nixos-18.03 for the latest
release and nixos-unstable for the latest successful build of master:
% git remote update channels
% git rebase channels/nixos-18.03
For pull-requests, please rebase onto nixpkgs master.
NixOS Linux distribution source code is located inside
nixos/ folder.
- NixOS installation instructions
- Documentation (Nix Expression Language chapter)
- Manual (How to write packages for Nix)
- Manual (NixOS)
- Community maintained wiki
- Continuous package builds for unstable/master
- Continuous package builds for 18.03 release
- Tests for unstable/master
- Tests for 18.03 release
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