LoadPlugin logfile
<Plugin logfile>
  LogLevel info
  File "/opt/collectd/var/log/collectd.log"
  Timestamp true
  PrintSeverity false
</Plugin>

LoadPlugin cpu

LoadPlugin virt
<Plugin virt>
  Connection "qemu:///system"
  RefreshInterval 60
  HostnameFormat uuid
  PluginInstanceFormat name
  ExtraStats "cpu_util"
</Plugin>

LoadPlugin write_kafka
<Plugin write_kafka>
  Property "metadata.broker.list" "localhost:9092"
  <Topic "collectd">
    Format JSON
  </Topic>
</Plugin>