Running h3exporter as systemctl service

h3exporter/README

@@ -1,31 +1,12 @@
 Python3 script to report WA hadoop3 key stats
 
 
-CURRENTLY, BELOW systemctl SETUP NOT WORK - ISSUE WITH D-BUS AND monitor USER
+To set up as a systemctl daemon, as the root user:
+* Copy h3exporter service file to systemctl directory
+ * cp h3exporter.service /usr/lib/systemd/system/
 
-To set up as a systemctl daemon:
-* Ensure user systemd directory exists
- * mkdir -p ~/.config/systemd/user
-
-* Create service file as ~/.config/systemd/user/h3exporter.service, chmod 644
-
-```
-[Unit]
-Description=h3exporter systemctl configuration
-After=network.target
-
-[Service]
-Type=simple
-ExecStart=/home/monitor/github/ukwa-monitor/h3exporter/run_h3exporter.sh
-Restart=always
-RestartSec=30
-
-[Install]
-WantedBy=default.target
-```
-
-* Reload user systemctl 
- * systemctl --user daemon-reload
+* Reload systemctl 
+ * systemctl daemon-reload
 
 * Enable and start h3exporter service
- * systemctl --user enable --now h3exporter
+ * systemctl enable --now h3exporter

h3exporter/h3exporter.py

@@ -15,7 +15,7 @@
 # globals 
 logger = logging.getLogger(__name__)
 SCRIPTNAME = os.path.splitext(os.path.basename(__main__.__file__))[0]
-CONFIG = 'config/settings'
+CONFIG = '/home/monitor/github/ukwa-monitor/h3exporter/config/settings'
 
 
 # script --------------------
@@ -44,10 +44,10 @@ def script():
 			or ( underReplicated != prevUnderReplicated):
 			h3stats.send_hadoop_stats(settings, usedPercent, deadNodes, underReplicated)
 
-		# update previous values
-		prevUsedPercent = usedPercent
-		prevDeadNodes = deadNodes
-		prevUnderReplicated = underReplicated
+			# update previous values
+			prevUsedPercent = usedPercent
+			prevDeadNodes = deadNodes
+			prevUnderReplicated = underReplicated
 
 		# sleep until next time to send hadoop3 stats
 		time.sleep(int(settings['sleep']))

h3exporter/h3exporter.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=h3exporter systemctl configuration
+After=network.target
+
+[Service]
+Type=forking
+User=monitor
+Group=monitor
+ExecStart=/home/monitor/github/ukwa-monitor/h3exporter/run_h3exporter.sh
+Restart=always
+RestartSec=30
+
+[Install]
+WantedBy=default.target