kuryr-kubernetes not support udp services

[changhongli]

when kubernetes service's protocol is UDP, kuryr-kubernetes cause exception,
Neutron lbaas not support udp

======env==============
openstack version: ocata
kubernetes: v1.7.9
======service.yaml========
apiVersion: v1
kind: Service
metadata:
  name: test
  labels:
    name: test
spec:
  ports:
  - name: port1
    protocol: UDP
    port: 8080
    targetPort: 80
  - name: port2
    protocol: TCP
    port: 80
    targetPort: 80
  selector:
    name: test

========ERROR log===========
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging [-] Failed to handle event {u'object': {u'kind': u'Endpoints', u'subsets': [{u'addresses': [{u'ip': u'10.6.0.4', u'targetRef': {u'kind': u'Pod', u'resourceVersion': u'35931', u'namespace': u'default', u
'name': u'test-4027621023-d21hn', u'uid': u'613554c3-d67c-11e7-a2fb-fa163ee180e7'}, u'nodeName': u'i-9auvqf6c'}], u'ports': [{u'protocol': u'TCP', u'name': u'port2', u'port': 80}, {u'protocol': u'UDP', u'name': u'port1', u'port': 80}]}], u'apiVersion': u'v1', u'metadata':
 {u'name': u'test', u'labels': {u'name': u'test'}, u'namespace': u'default', u'resourceVersion': u'295579', u'creationTimestamp': u'2017-12-04T03:17:34Z', u'annotations': {u'openstack.org/kuryr-lbaas-spec': u'{"versioned_object.data": {"ip": "10.5.223.33", "lb_ip": null,
"ports": [{"versioned_object.data": {"name": "port1", "port": 8080, "protocol": "UDP"}, "versioned_object.name": "LBaaSPortSpec", "versioned_object.namespace": "kuryr_kubernetes", "versioned_object.version": "1.0"}, {"versioned_object.data": {"name": "port2", "port": 80,
"protocol": "TCP"}, "versioned_object.name": "LBaaSPortSpec", "versioned_object.namespace": "kuryr_kubernetes", "versioned_object.version": "1.0"}], "project_id": "22979ed2ab6d4db183b844409ad91ff3", "security_groups_ids": ["60e94451-0a4e-42f0-9dd6-0ff27103897d"], "subnet_id": "c7323520-45dd-45e7-97b5-69585cf29d2c", "type": "ClusterIP"}, "versioned_object.name": "LBaaSServiceSpec", "versioned_object.namespace": "kuryr_kubernetes", "versioned_object.version": "1.0"}'}, u'selfLink': u'/api/v1/namespaces/default/endpoints/test', u'uid': u'ac18152a-d8a1-11e7-a2fb-fa163ee180e7'}}, u'type': u'MODIFIED'}: BadRequest: Invalid input for protocol. Reason: UDP is not in valid_values.
Neutron server returns request_ids: ['req-d593b3fb-adba-402b-a7e4-05f347d31212']
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging Traceback (most recent call last):
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/handlers/logging.py", line 37, in __call__
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging self._handler(event)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/handlers/retry.py", line 61, in __call__
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging self._handler(event)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/handlers/k8s_base.py", line 60, in __call__
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging self.on_present(obj)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/controller/handlers/lbaas.py", line 236, in on_present
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging if self._sync_lbaas_members(endpoints, lbaas_state, lbaas_spec):
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/controller/handlers/lbaas.py", line 284, in _sync_lbaas_members
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging if self._sync_lbaas_pools(endpoints, lbaas_state, lbaas_spec):
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/controller/handlers/lbaas.py", line 384, in _sync_lbaas_pools
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging if self._sync_lbaas_listeners(endpoints, lbaas_state, lbaas_spec):
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/controller/handlers/lbaas.py", line 432, in _sync_lbaas_listeners
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging if self._add_new_listeners(endpoints, lbaas_spec, lbaas_state):
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/controller/handlers/lbaas.py", line 451, in _add_new_listeners
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging port=port)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/controller/drivers/lbaasv2.py", line 70, in ensure_listener
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging self._find_listener)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/controller/drivers/lbaasv2.py", line 287, in _ensure_provisioned
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging result = self._ensure(obj, create, find)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/controller/drivers/lbaasv2.py", line 275, in _ensure
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging result = create(obj)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/root/kuryr-kubernetes/kuryr_kubernetes/controller/drivers/lbaasv2.py", line 166, in _create_listener
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging 'protocol_port': listener.port}})
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/opt/kuryr/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 1144, in create_listener
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging return self.post(self.lbaas_listeners_path, body=body)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/opt/kuryr/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 357, in post
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging headers=headers, params=params)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/opt/kuryr/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 292, in do_request
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging self._handle_fault_response(status_code, replybody, resp)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/opt/kuryr/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 268, in _handle_fault_response
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging exception_handler_v20(status_code, error_body)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging File "/opt/kuryr/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 92, in exception_handler_v20
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging request_ids=request_ids)
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging BadRequest: Invalid input for protocol. Reason: UDP is not in valid_values.
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging Neutron server returns request_ids: ['req-d593b3fb-adba-402b-a7e4-05f347d31212']
2017-12-04 11:17:37.637 31836 ERROR kuryr_kubernetes.handlers.logging

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/525040

[OpenStack Infra (hudson-openstack)]

Change abandoned by changhongli (<email address hidden>) on branch: master
Review: https://review.openstack.org/525040

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/549739

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/549739
Committed: https://git.openstack.org/cgit/openstack/kuryr-kubernetes/commit/?id=d5e5d1537bc911a893f068d094f057c45444fc40
Submitter: Zuul
Branch: master

commit d5e5d1537bc911a893f068d094f057c45444fc40
Author: Yossi Boaron <email address hidden>
Date: Sun Mar 4 22:53:39 2018 +0200

    Services: Gracefully ignore exposed UDP ports

    Since LBaaSv2 doesn't support UDP load balancing,
    Kuryr should ignore exposed UDP ports in K8S service.
    This patch updates Kuryr to gracefully ignore UDP exposed
    ports and updates the documentation with this info.

    Closes-Bug: 1736060

    Change-Id: I03f6d95a2d855cbd8954018c930e283a46763655

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/queens
Review: https://review.openstack.org/553205

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/553205
Committed: https://git.openstack.org/cgit/openstack/kuryr-kubernetes/commit/?id=29821a63ea17887400c48894087d5d0bd3f7190c
Submitter: Zuul
Branch: stable/queens

commit 29821a63ea17887400c48894087d5d0bd3f7190c
Author: Yossi Boaron <email address hidden>
Date: Sun Mar 4 22:53:39 2018 +0200

    Services: Gracefully ignore exposed UDP ports

    Since LBaaSv2 doesn't support UDP load balancing,
    Kuryr should ignore exposed UDP ports in K8S service.
    This patch updates Kuryr to gracefully ignore UDP exposed
    ports and updates the documentation with this info.

    Closes-Bug: 1736060

    Change-Id: I03f6d95a2d855cbd8954018c930e283a46763655
    (cherry picked from commit d5e5d1537bc911a893f068d094f057c45444fc40)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kuryr-kubernetes 0.4.2 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kuryr-kubernetes 0.5.0 release.