New MQTT adaption

ttn-vegapulsair-exporter.service

@@ -1,16 +1,45 @@
 [Unit]
-Description=TTN Exporter for VEGAPULS Air
-After=syslog.target
-After=network.target
+Description=TTN VEGAPULS Air Prometheus Exporter
+Documentation=https://git.mosad.xyz/localhorst/TTN-VEGAPULS-Air-exporter
+After=network-online.target
+Wants=network-online.target
 
 [Service]
-Restart=on-failure
-RestartSec=2s
 Type=simple
 User=prometheus
 Group=prometheus
+
+# Working directory
 WorkingDirectory=/opt/ttn-vegapulsair-exporter/
+
+# Execution
 ExecStart=/usr/bin/python3 /opt/ttn-vegapulsair-exporter/ttn-vegapulsair-exporter.py
 
+# Restart configuration
+Restart=always
+RestartSec=10
+
+# Logging
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=ttn-vegapuls-exporter
+
+# Security settings
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=true
+ReadWritePaths=/opt/ttn-vegapulsair-exporter/
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectControlGroups=true
+
+# Resource limits
+MemoryLimit=256M
+CPUQuota=5%
+
+# Environment
+Environment="PYTHONUNBUFFERED=1"
+
 [Install]
-WantedBy=multi-user.target 
+WantedBy=multi-user.target