feat(docker): add monitoring script and update Dockerfile and .dockerignore for enhanced backup monitoring and system resource tracking

monitor.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+import os
+import sys
+import psutil
+import time
+import json
+import logging
+
+# Set up logging
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s - %(levelname)s - %(message)s'
+)
+
+def monitor_system():
+    backups = [
+        "main", "backup1", "backup2", "backup3", "backup4",
+        "rescue", "emergency", "last_resort", "ultrabackup"
+    ]
+    
+    while True:
+        try:
+            stats = {
+                "cpu": psutil.cpu_percent(),
+                "mem": psutil.virtual_memory().percent,
+                "disk": psutil.disk_usage("/").percent,
+                "timestamp": time.time()
+            }
+
+            # Check all backup directories
+            for backup in backups:
+                path = f"/app/{backup}/src/simpleguardhome"
+                if not os.path.exists(path):
+                    stats[f"{backup}_missing"] = True
+                    logging.warning(f"Backup missing: {backup}")
+
+            # Save stats
+            try:
+                with open("/app/monitor/stats.json", "w") as f:
+                    json.dump(stats, f)
+            except Exception as e:
+                logging.error(f"Failed to write stats: {str(e)}")
+
+            # Log warnings for high resource usage
+            if stats["cpu"] > 80:
+                logging.warning(f"High CPU usage: {stats['cpu']}%")
+            if stats["mem"] > 80:
+                logging.warning(f"High memory usage: {stats['mem']}%")
+            if stats["disk"] > 80:
+                logging.warning(f"High disk usage: {stats['disk']}%")
+
+        except Exception as e:
+            logging.error(f"Monitoring error: {str(e)}")
+
+        time.sleep(5)
+
+if __name__ == "__main__":
+    logging.info("Starting system monitor...")
+    try:
+        monitor_system()
+    except KeyboardInterrupt:
+        logging.info("Shutting down monitor...")
+        sys.exit(0)
+    except Exception as e:
+        logging.error(f"Fatal error: {str(e)}")
+        sys.exit(1)