rhel: Add variables for OVN and VTEP db locations.

Most real deployments will need to customize the database locations
for ovn-controller and ovn-controller-vtep.  Instead of making them
override the entire command used to start the daemons, provide and
document some environment variables that can be overridden in a custom
config file.

Signed-off-by: Russell Bryant <rbryant@redhat.com>
Acked-by: Flavio Leitner <fbl@sysclose.org>
Signed-off-by: Ben Pfaff <blp@nicira.com>

diff --git a/rhel/usr_lib_systemd_system_ovn-controller-vtep.service b/rhel/usr_lib_systemd_system_ovn-controller-vtep.service
index f8ec238..867a906 100644 (file)
--- a/rhel/usr_lib_systemd_system_ovn-controller-vtep.service
+++ b/rhel/usr_lib_systemd_system_ovn-controller-vtep.service
@@ -1,3 +1,18 @@
+#
+# You may override the following variables to customize ovn-controller-vtep
+# behavior:
+#
+#   OVN_DB - Set this variable to the location of the ovsdb server that is
+#            serving the OVN_Southbound database.  See the manpage for
+#            ovn-controller-vtep for more details on the format for the db
+#            location.
+#
+#   VTEP_DB - Set this variable to the location of the ovsdb server that is
+#             serving the hardware_vtep database.  See the manpage for
+#             ovn-controller-vtep for more details on the format for the db
+#             location.
+#
+
 [Unit]
 Description=OVN VTEP gateway controller daemon
 After=syslog.target
@@ -7,6 +22,9 @@ After=openvswitch.service
 [Service]
 Type=simple
 Environment=OVS_RUNDIR=%t/openvswitch
+Environment=OVN_DB=unix:%t/openvswitch/db.sock
+Environment=VTEP_DB=unix:%t/openvswitch/db.sock
 ExecStart=/usr/bin/ovn-controller-vtep -vconsole:emer -vsyslog:err -vfile:info \
           --log-file=/var/log/openvswitch/ovn-controller-vtep.log \
-          --no-chdir --pidfile=${OVS_RUNDIR}/ovn-controller-vtep.pid
+          --no-chdir --pidfile=${OVS_RUNDIR}/ovn-controller-vtep.pid \
+          --ovnsb-db=${OVN_DB} --vtep-db=${VTEP_DB}

diff --git a/rhel/usr_lib_systemd_system_ovn-controller.service b/rhel/usr_lib_systemd_system_ovn-controller.service
index 7637fe7..48dd194 100644 (file)
--- a/rhel/usr_lib_systemd_system_ovn-controller.service
+++ b/rhel/usr_lib_systemd_system_ovn-controller.service
@@ -1,3 +1,11 @@
+#
+# You may override the following variables to customize ovn-controller behavior:
+#
+#   OVN_DB - Set this variable to the location of the ovsdb server that is
+#            serving the OVN_Southbound database.  See the manpage for
+#            ovn-controller for more details on the format for the db location.
+#
+
 [Unit]
 Description=OVN controller daemon
 After=syslog.target
@@ -7,7 +15,7 @@ After=openvswitch.service
 [Service]
 Type=simple
 Environment=OVS_RUNDIR=%t/openvswitch
+Environment=OVN_DB=unix:%t/openvswitch/db.sock
 ExecStart=/usr/bin/ovn-controller -vconsole:emer -vsyslog:err -vfile:info \
           --log-file=/var/log/openvswitch/ovn-controller.log \
-          --no-chdir --pidfile=${OVS_RUNDIR}/ovn-controller.pid \
-          unix:${OVS_RUNDIR}/db.sock
+          --no-chdir --pidfile=${OVS_RUNDIR}/ovn-controller.pid ${OVN_DB}