After upgrade openstack compute nodes no long apply security group rules

Issue

• After perform upgrade on compute nodes no long apply security group rules. Openvswitch logs show the firewall rules are updated/refreshed but not created.

  [root@compute]# iptables -nvL | grep Chain
  Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
  Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
  Chain OUTPUT (policy ACCEPT 1086K packets, 371M bytes)
  Chain neutron-filter-top (2 references)
  Chain neutron-openvswi-FORWARD (1 references)
  Chain neutron-openvswi-INPUT (1 references)
  Chain neutron-openvswi-OUTPUT (1 references)
  Chain neutron-openvswi-local (1 references)
  Chain neutron-openvswi-sg-chain (0 references)
  Chain neutron-openvswi-sg-fallback (0 references)