[Unit]
  Description=Quagga %i routing daemon
  ConditionFileIsExecutable=/usr/sbin/%i
  Wants=quagga@zebra.service
  
  [Service]
  Type=simple
  EnvironmentFile=/etc/default/quagga-%i
  PrivateTmp=true
  # Systemd doesn't like having %i in the executable path.
  ExecStart=/usr/bin/env /usr/sbin/%i $OPTS -f /etc/quagga/%i.conf
  ExecReload=/bin/kill -HUP $MAINPID
  Restart=on-failure
  
  [Install]
  WantedBy=multi-user.target