updates

nix/module.nix

@@ -0,0 +1,147 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.services.tasproxy;
+  format = pkgs.formats.toml {};
+  configFile = format.generate "tasproxy-config.toml" {
+    listen = {
+      inherit (cfg) socket;
+    };
+    mqtt =
+      {
+        inherit (cfg.mqtt) hostname port;
+      }
+      // (
+        optionalAttrs (cfg.mqtt.passwordFile != null) {
+          inherit (cfg.mqtt) username;
+          password_file = "$CREDENTIALS_DIRECTORY/mqtt_password";
+        }
+      );
+    tasmota = optionalAttrs (cfg.tasmota.username != null) {
+      inherit (cfg.tasmota) username;
+      password_file = "$CREDENTIALS_DIRECTORY/tasmota_password";
+    };
+  };
+in {
+  options.services.tasproxy = {
+    enable = mkEnableOption "Log archiver";
+
+    port = mkOption {
+      type = types.int;
+      default = 3000;
+      description = "port to listen on, if enableUnixSocket is not set";
+    };
+
+    socket = mkOption {
+      type = types.str;
+      default = "/run/tasproxy/tasproxy.socket";
+      description = "socket to listen on, if enableUnixSocket is set";
+    };
+
+    mqtt = mkOption {
+      type = types.submodule {
+        options = {
+          hostname = mkOption {
+            type = types.str;
+            description = "Hostname of the MQTT server";
+          };
+          port = mkOption {
+            type = types.port;
+            default = 1883;
+            description = "Port of the MQTT server";
+          };
+          username = mkOption {
+            type = types.nullOr types.str;
+            default = null;
+            description = "Username for the MQTT server";
+          };
+          passwordFile = mkOption {
+            type = types.nullOr types.str;
+            default = null;
+            description = "File containing the password for the MQTT server";
+          };
+        };
+      };
+    };
+
+    tasmota = mkOption {
+      type = types.submodule {
+        options = {
+          username = mkOption {
+            type = types.nullOr types.str;
+            default = null;
+            description = "Username for the tasmota devices";
+          };
+          passwordFile = mkOption {
+            type = types.nullOr types.str;
+            default = null;
+            description = "File containing the password for the tasmota devices";
+          };
+        };
+      };
+      default = {};
+    };
+
+    enableUnixSocket = mkOption {
+      type = types.bool;
+      default = false;
+      description = "listen to a unix socket instead of TCP";
+    };
+
+    package = mkOption {
+      type = types.package;
+      defaultText = literalExpression "pkgs.tasproxy";
+      description = "package to use";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services."tasproxy" = {
+      wantedBy = ["multi-user.target"];
+
+      serviceConfig = {
+        LoadCredential =
+          (optional (cfg.mqtt.passwordFile != null) [
+            "mqtt_password:${cfg.mqtt.passwordFile}"
+          ])
+          ++ (optional (cfg.tasmota.passwordFile != null) [
+            "tasmota_password:${cfg.tasmota.passwordFile}"
+          ]);
+
+        ExecStart = "${cfg.package}/bin/tasproxy ${configFile}";
+
+        Restart = "on-failure";
+        DynamicUser = true;
+        PrivateTmp = true;
+        ProtectSystem = "strict";
+        ProtectHome = true;
+        NoNewPrivileges = true;
+        PrivateDevices = true;
+        ProtectClock = true;
+        CapabilityBoundingSet = true;
+        ProtectKernelLogs = true;
+        ProtectControlGroups = true;
+        SystemCallArchitectures = "native";
+        ProtectKernelModules = true;
+        RestrictNamespaces = true;
+        MemoryDenyWriteExecute = true;
+        ProtectHostname = true;
+        LockPersonality = true;
+        ProtectKernelTunables = true;
+        RestrictAddressFamilies = ["AF_INET" "AF_INET6"] ++ optionals cfg.enableUnixSocket ["AF_UNIX"];
+        RestrictRealtime = true;
+        ProtectProc = "noaccess";
+        SystemCallFilter = ["@system-service" "~@resources" "~@privileged"];
+        IPAddressDeny = "multicast";
+        PrivateUsers = true;
+        ProcSubset = "pid";
+        RuntimeDirectory = "tasproxy";
+        RestrictSUIDSGID = true;
+      };
+    };
+  };
+}