zabbix-agent: Monitor systemd accounting data

Signed-off-by: Florian Pritz <bluewind@xinu.at>

roles/zabbix-agent/files/systemd-discover-accounting-units.py

+#!/usr/bin/python
+
+import dbus
+import json
+
+bus = dbus.SystemBus()
+systemd1 = bus.get_object('org.freedesktop.systemd1', '/org/freedesktop/systemd1')
+systemd1_manager = dbus.Interface(systemd1, dbus_interface='org.freedesktop.systemd1.Manager')
+
+units = systemd1_manager.ListUnits()
+
+discovered = []
+
+def get_unit_prop(interface, propname):
+    try:
+        return unit_properties.Get('org.freedesktop.systemd1.Service', propname)
+    except dbus.exceptions.DBusException as err:
+        if err.get_dbus_name() == 'org.freedesktop.DBus.Error.UnknownProperty':
+            return None
+        else:
+            raise
+
+for u in units:
+    unit_properties = dbus.Interface(bus.get_object('org.freedesktop.systemd1', u[6]), dbus_interface='org.freedesktop.DBus.Properties')
+    if get_unit_prop(unit_properties, "CPUAccounting") or get_unit_prop(unit_properties, "MemoryAccounting"):
+        discovered.append({"{#UNITNAME}": u[0]})
+
+print(json.dumps({"data": discovered}));

roles/zabbix-agent/tasks/main.yml

@@ -34,6 +34,7 @@
     - systemd-units-failed.py
     - mysql-user-stats.pl
     - nginx-zabbix.pl
+    - systemd-discover-accounting-units.py
 
 - name: copy nginx-zabbix.service
   copy: src=nginx-zabbix.service dest=/etc/systemd/system/nginx-zabbix.service owner=root group=root mode=0644

roles/zabbix-agent/templates/zabbix_agentd.conf

@@ -21,6 +21,9 @@ UserParameter=systemd.unit.is-enabled[*],systemctl is-enabled --quiet '$1' && ec
 
 UserParameter=systemd.failed_units,/usr/local/bin/systemd-units-failed.py
 
+UserParameter=systemd.accounting_discover,/usr/local/bin/systemd-discover-accounting-units.py
+UserParameter=systemd.unit_data[*],systemctl show '$1' | perl -MJSON -ne 'BEGIN{my %h}; my ($$k,$$v) = split(/=/,$$_,2); chomp($$h{$$k} = $v); END {print encode_json(\%h)};'
+
 UserParameter=postfix.pfmailq,mailq | grep -v "Mail queue is empty" | grep -c '^[0-9A-Z]'
 UserParameter=postfix[*],/usr/local/bin/postfix-zabbix-stats.sh $1