feat: add system info to hardware stats sensor

repeater/data_acquisition/hardware_stats.py

@@ -12,6 +12,7 @@ except ImportError:
     psutil = None
 
 import logging
+import platform
 import time
 
 logger = logging.getLogger("HardwareStats")
@@ -57,6 +58,7 @@ class HardwareStatsCollector:
             # System boot time
             boot_time = psutil.boot_time()
             system_uptime = now - boot_time
+            system_info = self._get_system_info()
 
             # Temperature (if available)
             temperatures = {}
@@ -96,7 +98,13 @@ class HardwareStatsCollector:
                     "packets_sent": net_io.packets_sent,
                     "packets_recv": net_io.packets_recv,
                 },
-                "system": {"uptime": system_uptime, "boot_time": boot_time},
+                "system": {
+                    "uptime": system_uptime,
+                    "boot_time": boot_time,
+                    "os": system_info["os"],
+                    "kernel": system_info["kernel"],
+                    "arch": system_info["arch"],
+                },
             }
 
             # Add temperatures if available
@@ -109,6 +117,25 @@ class HardwareStatsCollector:
             logger.error(f"Error collecting hardware stats: {e}")
             return {"error": str(e)}
 
+    @staticmethod
+    def _get_system_info(os_release_path="/etc/os-release"):
+        os_name = None
+        try:
+            with open(os_release_path, "r", encoding="utf-8") as f:
+                for line in f:
+                    key, sep, value = line.partition("=")
+                    if sep and key == "PRETTY_NAME":
+                        os_name = value.strip().strip('"')
+                        break
+        except OSError:
+            os_name = None
+
+        return {
+            "os": os_name or platform.system(),
+            "kernel": platform.release(),
+            "arch": platform.machine(),
+        }
+
     def get_processes_summary(self, limit=10):
         """
         Get top processes by CPU and memory usage.

tests/test_sensors.py

@@ -160,6 +160,23 @@ def test_hardware_stats_sensor_reads_from_collector(monkeypatch):
     assert reading["data"] == {"cpu": {"usage_percent": 42.0}}
 
 
+def test_hardware_stats_collector_reads_os_kernel_and_arch(tmp_path, monkeypatch):
+    import repeater.data_acquisition.hardware_stats as hardware_stats_module
+
+    os_release = tmp_path / "os-release"
+    os_release.write_text('NAME="Debian GNU/Linux"\nPRETTY_NAME="Debian GNU/Linux 12"\n')
+    monkeypatch.setattr(hardware_stats_module.platform, "release", lambda: "6.8.0-test")
+    monkeypatch.setattr(hardware_stats_module.platform, "machine", lambda: "aarch64")
+
+    info = hardware_stats_module.HardwareStatsCollector._get_system_info(str(os_release))
+
+    assert info == {
+        "os": "Debian GNU/Linux 12",
+        "kernel": "6.8.0-test",
+        "arch": "aarch64",
+    }
+
+
 def test_pymc_modem_sensor_reads_modem_stats(monkeypatch):
     class _Response:
         status = 200