{ config, lib, pkgs, ... }: with lib; { options = { services.v2ray = { enable = mkOption { type = types.bool; default = false; description = '' Whether to run v2ray server. Either configFile or config must be specified. ''; }; configFile = mkOption { type = types.nullOr types.str; default = null; example = "/etc/v2ray/config.json"; description = '' The absolute path to the configuration file. Either configFile or config must be specified. See . ''; }; config = mkOption { type = types.nullOr (types.attrsOf types.unspecified); default = null; example = { inbounds = [{ port = 1080; listen = "127.0.0.1"; protocol = "http"; }]; outbounds = [{ protocol = "freedom"; }]; }; description = '' The configuration object. Either `configFile` or `config` must be specified. See . ''; }; }; }; config = let cfg = config.services.v2ray; configFile = if cfg.configFile != null then cfg.configFile else (pkgs.writeText "v2ray.json" (builtins.toJSON cfg.config)); in mkIf cfg.enable { assertions = [ { assertion = (cfg.configFile == null) != (cfg.config == null); message = "Either but not both `configFile` and `config` should be specified for v2ray."; } ]; systemd.services.v2ray = { description = "v2ray Daemon"; after = [ "network.target" ]; wantedBy = [ "multi-user.target" ]; path = [ pkgs.v2ray ]; script = '' exec v2ray -config ${configFile} ''; }; }; }