title: How to enable systemd collector in docker-compose.yml file for node exporter
body: <p>Hi I 'm new to prometheus I have a task to make prometheus show systemd services metrics (I use grafana for visualization) I' m using stefanprodan/dockprom example as my starting point however I couldn't find how to enable systemd collector for node exporter in the node exporter section of the docker-compose.yml and also leave all the enabled by default collectors. Also I need help with getting that info to be sent into grafana. I would appreciate the code in the example  or a place where I could find an adequate explanation how to do it like for dummies because I'm not experienced. Thanks in advance.</p>