feat: live system metrics (CPU, RAM, Disk, GPU, Temp)

routers/system.py

@@ -0,0 +1,91 @@
+"""
+System-Router: Liefert Live-Auslastung (CPU, RAM, Disk, GPU, Temp).
+Greift lokal auf psutil und sysfs zu.
+"""
+
+from pathlib import Path
+import psutil
+
+from fastapi import APIRouter, Depends
+from auth import auth
+
+router = APIRouter(prefix="/api/system", dependencies=[Depends(auth)])
+
+def _read_sysfs_int(path: Path) -> int | None:
+    try:
+        if path.exists():
+            return int(path.read_text().strip())
+    except Exception:
+        pass
+    return None
+
+def _get_gpu_mem():
+    # Suche in /sys/class/drm/ nach card*, die mem_info_* hat
+    drm_dir = Path("/sys/class/drm")
+    if not drm_dir.exists():
+        return None
+    
+    for card in drm_dir.glob("card*"):
+        dev_dir = card / "device"
+        vram_total = _read_sysfs_int(dev_dir / "mem_info_vram_total")
+        if vram_total is not None:
+            return {
+                "vram": {
+                    "used": _read_sysfs_int(dev_dir / "mem_info_vram_used") or 0,
+                    "total": vram_total,
+                },
+                "gtt": {
+                    "used": _read_sysfs_int(dev_dir / "mem_info_gtt_used") or 0,
+                    "total": _read_sysfs_int(dev_dir / "mem_info_gtt_total") or 0,
+                }
+            }
+    return None
+
+def _get_temperatures():
+    temps = {"cpu": None, "gpu": None}
+    hwmon_dir = Path("/sys/class/hwmon")
+    if not hwmon_dir.exists():
+        return temps
+
+    for hw in hwmon_dir.glob("hwmon*"):
+        try:
+            name = (hw / "name").read_text().strip()
+            temp_val = _read_sysfs_int(hw / "temp1_input")
+            if temp_val is not None:
+                if name == "k10temp":
+                    temps["cpu"] = temp_val / 1000.0
+                elif name == "amdgpu":
+                    temps["gpu"] = temp_val / 1000.0
+        except Exception:
+            continue
+    return temps
+
+@router.get("/status")
+def system_status():
+    temps = _get_temperatures()
+    
+    cpu_percent = psutil.cpu_percent(interval=None)
+    ram = psutil.virtual_memory()
+    disk = psutil.disk_usage("/")
+    
+    return {
+        "cpu": {
+            "percent": cpu_percent,
+            "temp": temps["cpu"]
+        },
+        "ram": {
+            "used": ram.used,
+            "total": ram.total,
+            "percent": ram.percent
+        },
+        "disk": {
+            "used": disk.used,
+            "total": disk.total,
+            "percent": disk.percent
+        },
+        "gpu": _get_gpu_mem() or {
+            "vram": {"used": 0, "total": 0},
+            "gtt": {"used": 0, "total": 0}
+        },
+        "gpu_temp": temps["gpu"]
+    }