sshlogd/nixos-module.nix

63 lines
1.6 KiB
Nix

{ self }:
{ config, lib, pkgs, ... }: {
options.services.sshlogd = with lib; {
enable = mkEnableOption "sshlogd";
listenAddr = mkOption {
type = types.str;
default = "0.0.0.0";
};
listenPort = mkOption {
type = types.int;
default = 22;
};
outputDir = mkOption {
type = types.path;
default = "/var/lib/sshlogd";
};
user = mkOption {
type = types.str;
default = "sshlogd";
};
group = mkOption {
type = types.str;
default = "sshlogd";
};
};
config =
let
cfg = config.services.sshlogd;
in
lib.mkIf cfg.enable {
users = {
users.${cfg.user} = {
isSystemUser = true;
group = cfg.group;
};
groups.${cfg.group} = {};
};
systemd.tmpfiles.rules = [
"d ${cfg.outputDir} 0755 ${cfg.user} ${cfg.group} -"
];
systemd.services.sshlogd = {
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
serviceConfig = {
Type = "simple";
User = cfg.user;
Group = cfg.group;
ExecStart = "${self.packages.${pkgs.system}.sshlogd}/bin/sshlogd '${cfg.listenAddr}:${toString cfg.listenPort}'";
WorkingDirectory = cfg.outputDir;
ReadWritePaths = cfg.outputDir;
ProtectSystem = "full";
Restart = "always";
RestartSec = "60s";
# Allow binding ports <1024
AmbientCapabilities = "CAP_NET_BIND_SERVICE";
};
};
};
}