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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.tremor-rs;
loggerSettingsFormat = pkgs.formats.yaml { };
loggerConfigFile = loggerSettingsFormat.generate "logger.yaml" cfg.loggerSettings;
in {
options = {
services.tremor-rs = {
enable = lib.mkEnableOption (lib.mdDoc "Tremor event- or stream-processing system");
troyFileList = mkOption {
type = types.listOf types.path;
default = [];
description = lib.mdDoc "List of troy files to load.";
};
tremorLibDir = mkOption {
type = types.path;
default = "";
description = lib.mdDoc "Directory where to find /lib containing tremor script files";
};
host = mkOption {
type = types.str;
default = "127.0.0.1";
description = lib.mdDoc "The host tremor should be listening on";
};
port = mkOption {
type = types.port;
default = 9898;
description = lib.mdDoc "the port tremor should be listening on";
};
loggerSettings = mkOption {
description = lib.mdDoc "Tremor logger configuration";
default = {};
type = loggerSettingsFormat.type;
example = {
refresh_rate = "30 seconds";
appenders.stdout.kind = "console";
root = {
level = "warn";
appenders = [ "stdout" ];
};
loggers = {
tremor_runtime = {
level = "debug";
appenders = [ "stdout" ];
additive = false;
};
tremor = {
level = "debug";
appenders = [ "stdout" ];
additive = false;
};
};
};
defaultText = literalExpression ''
{
refresh_rate = "30 seconds";
appenders.stdout.kind = "console";
root = {
level = "warn";
appenders = [ "stdout" ];
};
loggers = {
tremor_runtime = {
level = "debug";
appenders = [ "stdout" ];
additive = false;
};
tremor = {
level = "debug";
appenders = [ "stdout" ];
additive = false;
};
};
}
'';
};
};
};
config = mkIf (cfg.enable) {
environment.systemPackages = [ pkgs.tremor-rs ] ;
systemd.services.tremor-rs = {
description = "Tremor event- or stream-processing system";
wantedBy = [ "multi-user.target" ];
requires = [ "network-online.target" ];
after = [ "network-online.target" ];
environment.TREMOR_PATH = "${pkgs.tremor-rs}/lib:${cfg.tremorLibDir}";
serviceConfig = {
ExecStart = "${pkgs.tremor-rs}/bin/tremor --logger-config ${loggerConfigFile} server run ${concatStringsSep " " cfg.troyFileList} --api-host ${cfg.host}:${toString cfg.port}";
DynamicUser = true;
Restart = "always";
NoNewPrivileges = true;
PrivateTmp = true;
ProtectHome = true;
ProtectClock = true;
ProtectProc = "noaccess";
ProcSubset = "pid";
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
ProtectControlGroups = true;
ProtectHostname = true;
RestrictSUIDSGID = true;
RestrictRealtime = true;
RestrictNamespaces = true;
LockPersonality = true;
RemoveIPC = true;
SystemCallFilter = [ "@system-service" "~@privileged" ];
};
};
};
}
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