nixpkgs/nixos/modules/services/monitoring/vnstat.nix
Evils 7ff0ccc324 nixos/vnstat: homedir -> statedir
before, a nixos update that didn't trigger the chmod would break vnstat

and use a vnstatd group
2021-04-24 00:31:58 +02:00

61 lines
1.4 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.vnstat;
in {
options.services.vnstat = {
enable = mkEnableOption "update of network usage statistics via vnstatd";
};
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.vnstat ];
users = {
groups.vnstatd = {};
users.vnstatd = {
isSystemUser = true;
group = "vnstatd";
description = "vnstat daemon user";
};
};
systemd.services.vnstat = {
description = "vnStat network traffic monitor";
path = [ pkgs.coreutils ];
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
documentation = [
"man:vnstatd(1)"
"man:vnstat(1)"
"man:vnstat.conf(5)"
];
serviceConfig = {
ExecStart = "${pkgs.vnstat}/bin/vnstatd -n";
ExecReload = "${pkgs.procps}/bin/kill -HUP $MAINPID";
# Hardening (from upstream example service)
ProtectSystem = "strict";
StateDirectory = "vnstat";
PrivateDevices = true;
ProtectKernelTunables = true;
ProtectControlGroups = true;
ProtectHome = true;
ProtectKernelModules = true;
PrivateTmp = true;
MemoryDenyWriteExecute = true;
RestrictRealtime = true;
RestrictNamespaces = true;
User = "vnstatd";
Group = "vnstatd";
};
};
};
meta.maintainers = [ maintainers.evils ];
}