** Description changed:

+ [Impact]
+ Cloud instances are unable to retrieve metadata on startup.
+ 
+ [Test Case]
+ Deploy OpenStack with OVN/OVS
+ Restart OVN central controllers
+ Create a new instance
+ Instance will fail to retrieve metadata with the message from the original 
bug report displayed in the metadata agent log on the local hypervisor
+ 
+ [Regression Potential]
+ The fix for this issue is included in the upstream 2.13.3 release of OVS.
+ The fix ensures that SSL related connection issues are correctly handling in 
python3-ovs avoiding an issue where the connection to the OVN SB IDL is reset 
and never recreated.
+ The OVN drivers use python3-ovsdbapp which in turn bases off code provided by 
python3-ovs.
+ 
+ 
+ [Original Bug Report]
  Ubuntu:focal
  OpenStack: ussuri
  Instance port: hardware offloaded
  
  instance created, attempts to access metadata - metadata agent can't
  resolve the port/network combination:
  
  2020-12-10 15:00:18.258 4732 INFO neutron.agent.ovn.metadata.agent [-] Port 
d65418a6-d0e9-47e6-84ba-3d02fe75131a in datapath 
37706e4d-ce2a-4d81-8c61-3fd12437a0a7 bound to our ch
  assis
  2020-12-10 15:00:31.672 8062 ERROR neutron.agent.ovn.metadata.server [-] No 
port found in network 37706e4d-ce2a-4d81-8c61-3fd12437a0a7 with IP address 
10.5.1.155
  2020-12-10 15:00:31.673 8062 INFO eventlet.wsgi.server [-] 10.5.1.155,<local> 
"GET /openstack HTTP/1.1" status: 404  len: 297 time: 0.0043790
  2020-12-10 15:00:34.639 8062 ERROR neutron.agent.ovn.metadata.server [-] No 
port found in network 37706e4d-ce2a-4d81-8c61-3fd12437a0a7 with IP address 
10.5.1.155
  2020-12-10 15:00:34.639 8062 INFO eventlet.wsgi.server [-] 10.5.1.155,<local> 
"GET /openstack HTTP/1.1" status: 404  len: 297 time: 0.0040138

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https://bugs.launchpad.net/bugs/1907686

Title:
  ovn: instance unable to retrieve metadata

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