Rodrigo Arias Mallo
7d10816c98
Allows us to see which derivations are being built in realtime. It is a bit of a hack, but it seems to work. We simply look at the environment of the child processes of nix-daemon (usually bash) and then look for the $name variable which should hold the current derivation being built. Needs root to be able to read the environ file of the different nix-daemon processes as they are owned by the nixbld* users. See: https://discourse.nixos.org/t/query-ongoing-builds/23486 Reviewed-by: Aleix Boné <abonerib@bsc.es>
24 lines
598 B
Nix
24 lines
598 B
Nix
{ pkgs, config, lib, ... }:
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let
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script = pkgs.runCommand "nix-daemon-exporter.sh" { }
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''
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cp ${./nix-daemon-builds.sh} $out;
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chmod +x $out
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''
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;
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in
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{
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systemd.services.nix-daemon-exporter = {
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description = "Daemon to export nix-daemon metrics";
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path = [ pkgs.procps pkgs.ripgrep ];
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wantedBy = [ "default.target" ];
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serviceConfig = {
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Type = "simple";
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ExecStart = "${pkgs.socat}/bin/socat TCP4-LISTEN:9999,fork EXEC:${script}";
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# Needed root to read the environment, potentially unsafe
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User = "root";
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Group = "root";
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};
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};
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}
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