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--- monitors:submqttm [2020/11/13 12:13] – [Description] wnelis
+++ monitors:submqttm [2020/11/13 12:19] – [Installation] wnelis
@@ Line 19: / Line 19: @@
 === Client side ===
-Source modules submqttm.py and watchdog.py in /usr/lib/xymon/client/ext
+The source modules submqttm.py and watchdog.py shown in the next chapter are to be installed in directory /usr/lib/xymon/client/ext. Script submqttm.py needs to be running continuously, as the topcis can arrive at any time. Thus xymonlaunch is //not// used. In stead, a service is  defined which will start script submqttm.py at system start.
+Service submqttm is defined by creating a file named /etc/systemd/system as super user. An example of the content of this file is shown below.
+[Unit]
+Description=Xymon client with MQTT input
+[Service]
+Type=simple
+User=xymon
+Group=xymon
+ExecStart=/usr/lib/xymon/client/ext/submqttm.py
+WorkingDirectory=/usr/lib/xymon/client/ext
+StandardOutput=null
+StandardError=null
+Restart=on-abort
+[Install]
+WantedBy=multi-user.target
 Continuously running, as the topics can arrive at any time.
 Tests with mode 'periodic' are run once every 5 minutes.