Description of problem: Brought up a fresh OCP cluster with Kuryr network plugin and found kuryr cni and controller pods crashing frequently 

the controller is restarting because it can't create another member for that loadbalancer and loadbalander quota seems to be okay so. May be some kind of race writing into the CRD between service and endpoints handler as discussed with Maysa/Luis

Version-Release number of selected component (if applicable): 4.6.0-0.nightly-2020-09-22-213802


How reproducible: Intermittent to rarely


Steps to Reproduce:
1.Deploy OCP cluster with kuryr network plugin
2.
3.

Actual results: kuryr pods landing up in crashloopback mode


Expected results:Cluster should be installed successfully


Additional info:

$ oc get pods -n openshift-kuryr
NAME                                   READY   STATUS             RESTARTS   AGE
kuryr-cni-26xx5                        1/1     Running            3          37h
kuryr-cni-669vm                        1/1     Running            5          36h
kuryr-cni-d2spv                        0/1     CrashLoopBackOff   415        36h
kuryr-cni-ghnjq                        1/1     Running            3          37h
kuryr-cni-krvvj                        1/1     Running            3          37h
kuryr-cni-pkd74                        1/1     Running            1          36h
kuryr-controller-bc446d496-88x6z       1/1     Running            7          94m
kuryr-dns-admission-controller-8k7l4   1/1     Running            0          37h
kuryr-dns-admission-controller-f6mk5   1/1     Running            0          37h
kuryr-dns-admission-controller-xx9sg   1/1     Running            0          37h

kuryr-controller events:

Events:
  Type     Reason     Age                     From                                    Message
  ----     ------     ----                    ----                                    -------
  Normal   Pulled     24m (x411 over 36h)     kubelet, wsun0923-2sp2w-worker-0-lb7h9  Container image "quay.io/openshift-release-dev/ocp-v4.0-art-dev@sha256:599379455d7b62b6508c4ce92b65cb4145e7050c139809602103661ec5d4a883" already present on machine
  Warning  BackOff    9m29s (x4923 over 31h)  kubelet, wsun0923-2sp2w-worker-0-lb7h9  Back-off restarting failed container
  Warning  Unhealthy  4m36s (x4138 over 31h)  kubelet, wsun0923-2sp2w-worker-0-lb7h9  Liveness probe failed: HTTP probe failed with statuscode: 500
[anusaxen@anusaxen verification-tests]$ oc logs kuryr-controller-bc446d496-88x6z -n openshift-kuryr
2020-09-24 15:24:05.897 1 INFO kuryr_kubernetes.config [-] Logging enabled!
2020-09-24 15:24:05.905 1 INFO kuryr_kubernetes.config [-] /usr/bin/kuryr-k8s-controller version 4.6.0
2020-09-24 15:24:07.912 1 INFO os_vif [-] Loaded VIF plugins: linux_bridge, noop, ovs, noop, sriov
2020-09-24 15:24:07.922 1 INFO kuryr_kubernetes.controller.service [-] Configured handlers: ['vif', 'kuryrport', 'service', 'endpoints', 'kuryrloadbalancer', 'policy', 'pod_label', 'namespace', 'kuryrnetworkpolicy', 'kuryrnetwork']
2020-09-24 15:24:07.958 1 WARNING kuryr_kubernetes.controller.drivers.lbaasv2 [-] [neutron_defaults]resource_tags is set, but Octavia API 2.0 does not support resource tagging. Kuryr will put requested tags in the description field of Octavia resources.
2020-09-24 15:24:08.140 1 INFO kuryr_kubernetes.controller.service [-] Loaded handlers: ['endpoints', 'kuryrloadbalancer', 'kuryrnetwork', 'kuryrnetworkpolicy', 'kuryrport', 'namespace', 'pod_label', 'policy', 'service', 'vif']
2020-09-24 15:24:08.150 1 WARNING oslo_config.cfg [-] Deprecated: Option "sg_mode" from group "octavia_defaults" is deprecated for removal (enforce_sg_rules option can be used instead).  Its value may be silently ignored in the future.
2020-09-24 15:24:08.159 1 INFO kuryr_kubernetes.controller.service [-] Service 'KuryrK8sService' stopped
2020-09-24 15:24:08.160 1 INFO kuryr_kubernetes.controller.service [-] Service 'KuryrK8sService' starting
2020-09-24 15:24:08.161 1 INFO kuryr_kubernetes.controller.service [-] Running in non-HA mode, starting watcher immediately.
2020-09-24 15:24:08.177 1 INFO kuryr_kubernetes.watcher [-] Started watching '/api/v1/services'
2020-09-24 15:24:08.181 1 INFO kuryr_kubernetes.watcher [-] Started watching '/api/v1/pods'
2020-09-24 15:24:08.197 1 INFO kuryr_kubernetes.watcher [-] Started watching '/apis/openstack.org/v1/kuryrports'
2020-09-24 15:24:08.209 1 INFO kuryr_kubernetes.watcher [-] Started watching '/apis/openstack.org/v1/kuryrloadbalancers'
2020-09-24 15:24:08.219 1 INFO kuryr_kubernetes.watcher [-] Started watching '/apis/openstack.org/v1/kuryrnetworkpolicies'
2020-09-24 15:24:08.223 1 INFO kuryr_kubernetes.watcher [-] Started watching '/apis/openstack.org/v1/kuryrnetworks'
2020-09-24 15:24:08.233 1 INFO kuryr_kubernetes.watcher [-] Started watching '/api/v1/endpoints'
2020-09-24 15:24:08.246 1 INFO kuryr_kubernetes.watcher [-] Started watching '/api/v1/namespaces'
2020-09-24 15:24:08.251 1 INFO kuryr_kubernetes.watcher [-] Started watching '/apis/networking.k8s.io/v1/networkpolicies'
2020-09-24 15:24:24.469 1 WARNING kuryr_kubernetes.controller.handlers.loadbalancer [-] Skipping listener creation for openshift-dns/dns-default:UDP as another one already exists with port 53
2020-09-24 15:25:09.965 1 INFO kuryr_kubernetes.controller.drivers.vif_pool [-] PORTS POOL: pools updated with pre-created ports
2020-09-24 15:25:09.967 1 INFO kuryr_kubernetes.controller.service [-] Service 'KuryrK8sService' started
2020-09-24 15:25:09.971 1 INFO kuryr_kubernetes.controller.managers.prometheus_exporter [-] Starting Prometheus exporter
 * Serving Flask app "prometheus-exporter" (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
2020-09-24 15:25:09.974 1 INFO werkzeug [-]  * Running on http://[::]:9654/ (Press CTRL+C to quit)
2020-09-24 15:25:09.974 1 INFO kuryr_kubernetes.health [-] Starting controller-health health check server on :::8091.
 * Serving Flask app "controller-health" (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
2020-09-24 15:26:25.880 1 WARNING kuryr_kubernetes.controller.handlers.loadbalancer [-] Skipping listener creation for openshift-dns/dns-default:UDP as another one already exists with port 53
2020-09-24 15:28:26.397 1 WARNING kuryr_kubernetes.controller.handlers.loadbalancer [-] Skipping listener creation for openshift-dns/dns-default:UDP as another one already exists with port 53
2020-09-24 15:30:25.849 1 WARNING kuryr_kubernetes.controller.handlers.loadbalancer [-] Skipping listener creation for openshift-dns/dns-default:UDP as another one already exists with port 53
2020-09-24 15:32:25.872 1 WARNING kuryr_kubernetes.controller.handlers.loadbalancer [-] Skipping listener creation for openshift-dns/dns-default:UDP as another one already exists with port 53