flake/nixos/modules/services/clash.nix

47 lines
1.5 KiB
Nix

{
lib,
config,
pkgs,
...
}: let
cfg = config.services.clash;
in {
options.services.clash = {
enable = lib.mkEnableOption "Whether to enable Clash, A rule-based proxy in Go";
package = lib.mkPackageOption pkgs "clash" {};
};
config = lib.mkIf cfg.enable {
### User running clash
users.groups."clash" = {};
users.users."clash" = {
isSystemUser = true;
group = config.users.groups."clash".name;
};
### systemd service
# https://en.clash.wiki/introduction/service.html#systemd
# https://wiki.metacubex.one/startup/service/#systemd
systemd.services."clash" = {
description = "Clash daemon, A rule-based proxy in Go.";
after = ["network-online.target"];
wantedBy = ["multi-user.target"];
serviceConfig = {
# TODO: DynamicUser
# DynamicUser = true;
# LoadCredential = "credentials:${config.sops.secrets."clash-config".path}";
# https://man.archlinux.org/man/systemd.exec.5
ConfigurationDirectory = "clash";
User = [config.users.users."clash".name];
Group = [config.users.groups."clash".name];
ExecStart = "${lib.getExe cfg.package} -d /etc/clash";
# Capability, inherited from Clash wiki
# https://man.archlinux.org/man/core/man-pages/capabilities.7.en
CapabilityBoundingSet = ["CAP_NET_ADMIN" "CAP_NET_BIND_SERVICE" "CAP_NET_RAW"];
AmbientCapabilities = ["CAP_NET_ADMIN" "CAP_NET_BIND_SERVICE" "CAP_NET_RAW"];
};
};
};
}