Add posibilities to set ovn_openflow_probe_interval for controller

Add param OVNOpenflowProbeInterval to set ovn_openflow_probe_interval

Depends-On: https://review.opendev.org/#/c/690027/
Change-Id: I95e4c82f53d3cba49b660a9da0ad6e43b0839fb6
(cherry picked from commit bf3ef6e3b1)
(cherry picked from commit aebd416677)
(cherry picked from commit ca5f18da16)

puppet/services/ovn-controller.yaml

@@ -72,6 +72,12 @@ parameters:
     description: Probe interval in ms
     type: number
     default: 60000
+  OVNOpenflowProbeInterval:
+    description: >
+      The inactivity probe interval of the OpenFlow connection to the
+      OpenvSwitch integration bridge, in seconds.
+    type: number
+    default: 60
 
 resources:
   # Merging role-specific parameters (RoleParameters) with the default parameters.
@@ -113,6 +119,7 @@ outputs:
             ovn::controller::ovn_bridge: {get_param: OVNIntegrationBridge}
             nova::compute::force_config_drive: {if: [force_config_drive, true, false]}
             ovn::controller::ovn_remote_probe_interval: {get_param: OVNRemoteProbeInterval}
+            ovn::controller::ovn_openflow_probe_interval: {get_param: OVNOpenflowProbeInterval}
             tripleo.ovn_controller.firewall_rules:
               '118 neutron vxlan networks':
                     proto: 'udp'

releasenotes/notes/ovn_openflow_probe_interval-fd99301d95aac62e.yaml

@@ -0,0 +1,8 @@
+---
+features:
+  - |
+    Added new heat param OVNOpenflowProbeInterval to set ovn_openflow_probe_interval
+    which is inactivity probe interval of the OpenFlow connection to the OpenvSwitch
+    integration bridge, in seconds. If the value is zero, it disables the connection
+    keepalive feature, by default this value is set on 60s.
+    If the value is nonzero, then it will be forced to a value of at least 5s.