nixpkgs/nixos/modules/system/boot/systemd/coredump.nix
stuebinm 6afb255d97 nixos: remove all uses of lib.mdDoc
these changes were generated with nixq 0.0.2, by running

  nixq ">> lib.mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
  nixq ">> mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
  nixq ">> Inherit >> mdDoc[remove]" --batchmode nixos/**.nix

two mentions of the mdDoc function remain in nixos/, both of which
are inside of comments.

Since lib.mdDoc is already defined as just id, this commit is a no-op as
far as Nix (and the built manual) is concerned.
2024-04-13 10:07:35 -07:00

79 lines
2.1 KiB
Nix

{ config, lib, pkgs, utils, ... }:
with lib;
let
cfg = config.systemd.coredump;
systemd = config.systemd.package;
in {
options = {
systemd.coredump.enable = mkOption {
default = true;
type = types.bool;
description = ''
Whether core dumps should be processed by
{command}`systemd-coredump`. If disabled, core dumps
appear in the current directory of the crashing process.
'';
};
systemd.coredump.extraConfig = mkOption {
default = "";
type = types.lines;
example = "Storage=journal";
description = ''
Extra config options for systemd-coredump. See coredump.conf(5) man page
for available options.
'';
};
};
config = mkMerge [
(mkIf cfg.enable {
systemd.additionalUpstreamSystemUnits = [
"systemd-coredump.socket"
"systemd-coredump@.service"
];
environment.etc = {
"systemd/coredump.conf".text =
''
[Coredump]
${cfg.extraConfig}
'';
# install provided sysctl snippets
"sysctl.d/50-coredump.conf".source =
# Fix systemd-coredump error caused by truncation of `kernel.core_pattern`
# when the `systemd` derivation name is too long. This works by substituting
# the path to `systemd` with a symlink that has a constant-length path.
#
# See: https://github.com/NixOS/nixpkgs/issues/213408
pkgs.substitute {
src = "${systemd}/example/sysctl.d/50-coredump.conf";
substitutions = [
"--replace"
"${systemd}"
"${pkgs.symlinkJoin { name = "systemd"; paths = [ systemd ]; }}"
];
};
"sysctl.d/50-default.conf".source = "${systemd}/example/sysctl.d/50-default.conf";
};
users.users.systemd-coredump = {
uid = config.ids.uids.systemd-coredump;
group = "systemd-coredump";
};
users.groups.systemd-coredump = {};
})
(mkIf (!cfg.enable) {
boot.kernel.sysctl."kernel.core_pattern" = mkDefault "core";
})
];
}