feat(webserver): Add SystemRouter

backend/lib/webserver/SystemRouter.js

@@ -0,0 +1,53 @@
+const express = require("express");
+const os = require("os");
+
+class SystemRouter {
+    /**
+     *
+     * @param {object} options
+     */
+    constructor(options) {
+        this.router = express.Router({mergeParams: true});
+
+        this.initRoutes();
+    }
+
+
+    initRoutes() {
+        this.router.get("/host/info", (req, res) => {
+            res.json({
+                hostname: os.hostname(),
+                arch: os.arch(),
+                mem: {
+                    total: os.totalmem(),
+                    free: os.freemem(),
+                    valetudo_current: process.memoryUsage()?.rss,
+                    valetudo_max: process.resourceUsage()?.maxRSS
+                },
+                uptime: os.uptime(),
+                load: os.loadavg(),
+                cpuCount: os.cpus().length
+            });
+        });
+
+        this.router.get("/runtime/info", (req, res) => {
+            res.json({
+                uptime: Math.floor(process.uptime()),
+                argv: process.argv,
+                execArgv: process.execArgv,
+                execPath: process.execPath,
+                uid: typeof process.getuid === "function" ? process.geteuid() : -1,
+                gid: typeof process.getegid === "function" ? process.getegid() : -1,
+                pid: process.pid,
+                versions: process.versions,
+                env: process.env
+            });
+        });
+    }
+
+    getRouter() {
+        return this.router;
+    }
+}
+
+module.exports = SystemRouter;

backend/lib/webserver/WebServer.js

@@ -17,6 +17,7 @@ const ValetudoRouter = require("./ValetudoRouter");
 
 const MiioValetudoRobot = require("../robots/MiioValetudoRobot");
 const NTPClientRouter = require("./NTPClientRouter");
+const SystemRouter = require("./SystemRouter");
 const TimerRouter = require("./TimerRouter");
 
 class WebServer {
@@ -89,6 +90,8 @@ class WebServer {
 
         this.app.use("/api/v2/timers/", new TimerRouter({config: this.config, robot: this.robot}).getRouter());
 
+        this.app.use("/api/v2/system/", new SystemRouter({}).getRouter());
+
         // TODO: This should point at a build
         this.app.use(express.static(path.join(__dirname, "../../..", "frontend/lib")));