73 lines
2 KiB
Nix
73 lines
2 KiB
Nix
|
{
|
||
|
|
lib,
|
||
|
|
config,
|
||
|
|
pkgs,
|
||
|
|
...
|
||
|
|
}:
|
||
|
|
let
|
||
|
|
cfg = config.some.failure-handler;
|
||
|
|
jobScript = pkgs.writeShellScriptBin "show-status" ''
|
||
|
|
set -euo pipefail
|
||
|
|
|
||
|
|
export PATH=${lib.getBin config.boot.initrd.systemd.package}/bin''${PATH:+:}$PATH
|
||
|
|
export PATH=${lib.getBin pkgs.util-linux}/bin''${PATH:+:}$PATH
|
||
|
|
export PATH=${lib.getBin pkgs.gnugrep}/bin''${PATH:+:}$PATH
|
||
|
|
|
||
|
|
unit="$1"
|
||
|
|
shift
|
||
|
|
|
||
|
|
systemctl status "$unit" >&2 || true
|
||
|
|
patterns=$unit$'\n'error
|
||
|
|
dmesg | grep -Fi "$patterns" || true
|
||
|
|
'';
|
||
|
|
mkSystemdDropin = pkgs.callPackage ../pkgs/mkSystemdDropin.nix { };
|
||
|
|
in
|
||
|
|
{
|
||
|
|
options.some.failure-handler = {
|
||
|
|
enable = lib.mkEnableOption "Set up show-status@.service as a default OnFailure dependency";
|
||
|
|
stage-1.enable =
|
||
|
|
lib.mkEnableOption "Set up show-status@.service as a default OnFailure dependency in initramfs/initrd"
|
||
|
|
// {
|
||
|
|
default = cfg.enable;
|
||
|
|
};
|
||
|
|
package = lib.mkOption {
|
||
|
|
type = lib.types.package;
|
||
|
|
readOnly = true;
|
||
|
|
description = "The internal package with the drop-ins";
|
||
|
|
};
|
||
|
|
};
|
||
|
|
config = {
|
||
|
|
some.failure-handler.package = mkSystemdDropin {
|
||
|
|
name = "status-on-failure";
|
||
|
|
inherit jobScript;
|
||
|
|
dropinText = ''
|
||
|
|
[Unit]
|
||
|
|
OnFailure=status@%n.service
|
||
|
|
'';
|
||
|
|
serviceText = ''
|
||
|
|
[Unit]
|
||
|
|
DefaultDependencies=no
|
||
|
|
Description=Show status for %i
|
||
|
|
|
||
|
|
[Service]
|
||
|
|
Type=oneshot
|
||
|
|
StandardOutput=journal+console
|
||
|
|
StandardError=journal+console
|
||
|
|
ExecStart=${lib.getExe jobScript} "%i"
|
||
|
|
JoinsNamespaceOf=
|
||
|
|
DelegateNamespaces=
|
||
|
|
'';
|
||
|
|
extraCommands = ''
|
||
|
|
printf "%s" "$serviceText" > "$root/status@.service"
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
boot.initrd.systemd.packages = lib.optionals cfg.stage-1.enable [ cfg.package ];
|
||
|
|
boot.initrd.systemd.storePaths = lib.optionals cfg.stage-1.enable [
|
||
|
|
jobScript
|
||
|
|
pkgs.util-linux
|
||
|
|
pkgs.gnugrep
|
||
|
|
];
|
||
|
|
systemd.packages = lib.optionals cfg.enable [ cfg.package ];
|
||
|
|
};
|
||
|
|
}
|