usr_lib_systemd_system_ovn-controller.service

# See ovn-controller(8) for details about ovn-controller.
#
# To customize the ovn-controller service, you may create a configuration file
# in the /etc/systemd/system/ovn-controller.d/ directory.  For example, to specify
# additional options to be passed to the "ovn-ctl start_controller" command, you
# could place the following contents in
# /etc/systemd/system/ovn-controller.d/local.conf:
#
#   [System]
#   Environment="OVN_CONTROLLER_OPTS=--ovn-controller-log=-vconsole:emer -vsyslog:err -vfile:info"
#
# Alternatively, you may specify environment variables in the file /etc/sysconfig/ovn-controller:
#
#   OVN_CONTROLLER_OPTS="--ovn-controller-log=-vconsole:emer -vsyslog:err -vfile:info"

[Unit]
Description=OVN controller daemon
After=syslog.target
Requires=openvswitch.service
After=openvswitch.service

[Service]
Type=forking
PIDFile=/var/run/ovn/ovn-controller.pid
Restart=on-failure
Environment=OVN_RUNDIR=%t/ovn OVS_RUNDIR=%t/openvswitch
EnvironmentFile=-/etc/sysconfig/ovn
EnvironmentFile=-/etc/sysconfig/ovn-controller
ExecStart=/usr/share/ovn/scripts/ovn-ctl --no-monitor \
           --ovn-user=${OVN_USER_ID} \
          start_controller $OVN_CONTROLLER_OPTS
ExecStop=/usr/share/ovn/scripts/ovn-ctl stop_controller

[Install]
WantedBy=multi-user.target