feat: Complete systemd service creation for production deployment

- Successfully created systemd service file (/etc/systemd/system/apt-ostreed.service)
- Configured D-Bus service type with org.debian.aptostree1 bus name
- Set up root user execution with proper restart policies
- Enabled service for automatic startup on boot
- Service infrastructure ready for production deployment

Systemd service configuration:
- Type: dbus with proper bus name
- User: root (required for D-Bus access)
- Restart: always with 10s delay
- Timeout: 5 minutes for startup
- Environment: DOWNLOAD_FILELISTS=false

Next step: Complete daemon initialization fix for full functionality

apt-ostreed.service

@@ -0,0 +1,17 @@
+[Unit]
+Description=apt-ostree System Management Daemon
+Documentation=man:apt-ostree(1)
+After=network.target
+
+[Service]
+Type=dbus
+BusName=org.debian.aptostree1
+ExecStart=/usr/local/bin/apt-ostree --daemon
+User=root
+Restart=always
+RestartSec=10
+TimeoutStartSec=5m
+Environment="DOWNLOAD_FILELISTS=false"
+
+[Install]
+WantedBy=multi-user.target 

src/apt-layer/CHANGELOG.md

@@ -7,6 +7,25 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### [2025-07-16 UTC] - DAEMON INTEGRATION: SYSTEMD SERVICE CREATION COMPLETE
+- **Major Milestone**: Successfully created systemd service file for production deployment.
+- **Systemd Service File**: Created `/etc/systemd/system/apt-ostreed.service` with proper configuration:
+  - D-Bus service type with `org.debian.aptostree1` bus name
+  - Root user execution with proper restart policies
+  - Timeout configuration and environment variables
+  - Automatic startup on boot (enabled)
+- **Service Configuration**: Proper systemd integration:
+  - Service file installed and daemon-reload completed
+  - Service enabled for automatic startup
+  - Executable path correctly configured (`/usr/local/bin/apt-ostree --daemon`)
+- **Production Readiness**: Systemd service infrastructure complete:
+  - ✅ Service file: Created and configured
+  - ✅ D-Bus integration: Proper bus name and type
+  - ✅ User permissions: Root execution for D-Bus access
+  - ✅ Restart policies: Automatic restart on failure
+  - 🔄 Daemon initialization: Minor fix needed for constructor arguments
+- **Next Steps**: Complete daemon initialization fix for full production deployment.
+
 ### [2025-07-16 UTC] - DAEMON INTEGRATION: OSTREE LIBRARY INSTALLATION COMPLETE
 - **Major Milestone**: Successfully installed OSTree library in VM environment for full daemon functionality.
 - **OSTree Library Installation**: Installed required dependencies in VM:

src/apt-ostree.py/python/main.py

@@ -14,7 +14,7 @@ from pathlib import Path
 # Add the current directory to Python path
 sys.path.insert(0, str(Path(__file__).parent))
 
-from apt_ostree import AptOstreeDaemon
+from core.daemon import AptOstreeDaemon
 from apt_ostree_cli import AptOstreeCLI
 
 
@@ -37,10 +37,50 @@ def run_daemon():
     
     try:
         logger.info("Starting apt-ostree daemon")
-        daemon = AptOstreeDaemon()
-        daemon.run()
-    except KeyboardInterrupt:
-        logger.info("Shutting down daemon (interrupted)")
+        
+        # Create default config
+        config = {
+            'daemon': {
+                'concurrency': {
+                    'transaction_timeout': 300
+                },
+                'auto_update_policy': 'none'
+            }
+        }
+        
+        # Create logger wrapper
+        class LoggerWrapper:
+            def __init__(self, logger):
+                self.logger = logger
+            
+            def get_logger(self, name):
+                return self.logger
+        
+        logger_wrapper = LoggerWrapper(logger)
+        
+        daemon = AptOstreeDaemon(config, logger_wrapper)
+        
+        # Start the daemon
+        if not daemon.start():
+            logger.error("Failed to start daemon")
+            sys.exit(1)
+        
+        # Run the main loop
+        try:
+            import gi
+            gi.require_version('GLib', '2.0')
+            from gi.repository import GLib
+            
+            loop = GLib.MainLoop()
+            loop.run()
+        except ImportError:
+            logger.error("GLib not available, cannot run daemon")
+            sys.exit(1)
+        except KeyboardInterrupt:
+            logger.info("Shutting down daemon (interrupted)")
+        finally:
+            daemon.stop()
+            
     except Exception as e:
         logger.error(f"Daemon error: {e}")
         sys.exit(1)