How to work with systemd based services

• Stop/start/restart services

$ systemctl status contrail-api
$ systemctl stop contrail-api
$ systemctl restart contrail-api

• See stdout/stderr output from services

Systemd log stdout and stderror for all services to journal

$ journalctl -u contrail-api

e.g to see what happened while running contrail-ansible to setup the container by running

$ journalctl -u contrail-ansible

• Systemd service file location

systemd service files are located in /etc/systemd/system/ directory. Some of the system services are also there in /lib/systemd/system/ directory.