Neutron ML2/OVS: add support to enable of IGMP snooping

Neutron ML2/OVS backend allows now to enable support for IGMP
snooping in the br-int bridge. This can be done through
"igmp_snooping_enable" config option which can be set for
neutron-ovs-agent.
Patch [1] added support for it in puppet-neutron module.
In patch [2] support to enable this option for ML2/OVN backend
was added but we missed same change for ML2/OVS. Now we will
have it too.

[1] https://review.opendev.org/#/c/707367/
[2] https://review.opendev.org/#/c/714462/

Change-Id: I195410768d2d6a219bdda88a74fed3c29e1113a9

deployment/neutron/neutron-ovs-agent-container-puppet.yaml

@@ -139,6 +139,10 @@ parameters:
     default: ""
     tags:
      - role_specific
+  NeutronEnableIgmpSnooping:
+    description: Enable IGMP Snooping.
+    type: boolean
+    default: false
 
 conditions:
   no_firewall_driver: {equals : [{get_param: NeutronOVSFirewallDriver}, '']}
@@ -208,6 +212,7 @@ outputs:
             neutron::agents::ml2::ovs::tunnel_types: {get_param: NeutronTunnelTypes}
             neutron::agents::ml2::ovs::extensions: {get_param: NeutronAgentExtensions}
             neutron::agents::ml2::ovs::tunnel_csum: {get_param: NeutronOVSTunnelCsum}
+            neutron::agents::ml2::ovs::igmp_snooping_enable: {get_param: NeutronEnableIgmpSnooping}
             # NOTE: bind IP is found in hiera replacing the network name with the
             # local node IP for the given network; replacement examples
             # (eg. for internal_api):

releasenotes/notes/IGMP-snooping-for-ml2ovs-d794ed4eab7c098c.yaml

@@ -0,0 +1,3 @@
+---
+features:
+  - Adds support for IGMP snooping (Multicast) in the Neutron ML2/OVS driver.