systemd.service and timer example

kcd.service

[Unit]
Description=KCD cron job
After=vpm.service
After=kubelet.service

[Service]
User=root
Type=oneshot
SyslogIdentifier=kcd
EnvironmentFile=-/etc/environment
EnvironmentFile=-/etc/default/kcd
ExecStartPre=-/bin/mkdir -p /var/lib/kcd
Restart=no
TimeoutStopSec=30
TimeoutStartSec=30
RemainAfterExit=no
TimeoutSec=120
#Not supported by our version
#ExecCondition=/opt/bin/kcd version
ExecStart=/opt/bin/kcd \
  --verbose \
  --config /etc/kcd.yaml \
  cleanup

[Install]
WantedBy=multi-user.target

kcd.timer

[Unit]
Description=Timer for KCD service

[Timer]
OnBootSec=30min
OnUnitActiveSec=1h
#OnCalendar=hourly
#Persistent=true

[Install]
WantedBy=timers.target