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[Bug 1573320] [NEW] Neutron-LBaaS v2: Pool still gets created after ListenerPoolProtocolMismatch

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Public bug reported:

1.  Create a Load Balancer.
2.  Create a Listener with TCP 
3.  Create a Pool with HTTP
4.  Observe the following error:  {"NeutronError": {"message": "Listener protocol TCP and pool protocol HTTP are not compatible.", "type": "ListenerPoolProtocolMismatch", "detail": ""}
5.  List Pools.

Result:   Pool still gets created after the error.

Expected:  Pool should not get created if the listener and the pool
protocols are not compatible.

Note:  This bug occurs on any mismatch of protocols between listener and
pool:  TCP vs HTTP, TCP vs HTTPS, TCP vs TERMINATED_HTTPS, HTTP vs TCP,
etc.

Log (note the creation of pool "95300d77-084a-4015-804f-698d960b8050"
after the 409 error):

2016-04-21 22:15:04.370 17603 INFO tempest.lib.common.rest_client [req-411d6275-9341-4c53-ac13-3a879ae95ed1 ] Request (TestProtocols:
test_create_listener_and_pool_with_protocol): 409 POST http://127.0.0.1:9696/v2.0/lbaas/pools 0.339s
2016-04-21 22:15:04.370 17603 DEBUG tempest.lib.common.rest_client [req-411d6275-9341-4c53-ac13-3a879ae95ed1 ] Request - Headers: {'X
-Auth-Token': '<omitted>', 'Accept': 'application/json', 'Content-Type': 'application/json'}
        Body: {"pool": {"name": "pool-1818041961", "protocol": "HTTP", "admin_state_up": true, "description": "pool_description-15184
40568", "session_persistence": null, "listener_id": "7e4a7347-4113-4de4-9af9-092fc532bf23", "loadbalancer_id": "9c65fe8b-cc24-4e5b-8d
ae-bcfb22c0163f", "lb_algorithm": "ROUND_ROBIN"}}
    Response - Headers: {'content-length': '151', 'x-openstack-request-id': 'req-411d6275-9341-4c53-ac13-3a879ae95ed1', 'date': 'Thu,
 21 Apr 2016 22:15:04 GMT', 'content-type': 'application/json', 'connection': 'close', 'status': '409'}
        Body: {"NeutronError": {"message": "Listener protocol TCP and pool protocol HTTP are not compatible.", "type": "ListenerPoolProtocolMismatch", "detail": ""}} _log_request_full /opt/stack/neutron-lbaas/.tox/apiv2/local/lib/python2.7/site-packages/tempest/lib/common/rest_client.py:414
2016-04-21 22:15:04.590 17603 INFO tempest.lib.common.rest_client [req-97add959-c5f8-4389-8f4a-41708b59cc92 ] Request (TestProtocols:tearDown): 200 GET http://127.0.0.1:9696/v2.0/lbaas/loadbalancers/9c65fe8b-cc24-4e5b-8dae-bcfb22c0163f 0.188s
2016-04-21 22:15:04.590 17603 DEBUG tempest.lib.common.rest_client [req-97add959-c5f8-4389-8f4a-41708b59cc92 ] Request - Headers: {'X-Auth-Token': '<omitted>', 'Accept': 'application/json', 'Content-Type': 'application/json'}
        Body: None
    Response - Headers: {'content-length': '517', 'x-openstack-request-id': 'req-97add959-c5f8-4389-8f4a-41708b59cc92', 'date': 'Thu, 21 Apr 2016 22:15:04 GMT', 'content-location': 'http://127.0.0.1:9696/v2.0/lbaas/loadbalancers/9c65fe8b-cc24-4e5b-8dae-bcfb22c0163f', 'content-type': 'application/json', 'connection': 'close', 'status': '200'}
        Body: {"loadbalancer": {"description": "", "admin_state_up": true, "tenant_id": "59c6e9a660b94e97b0f2a4919974c220", "provisioning_status": "ACTIVE", "vip_subnet_id": "732198a3-0a70-478a-a4dc-a9cee967f423", "listeners": [{"id": "7e4a7347-4113-4de4-9af9-092fc532bf23"}], "vip_address": "10.100.0.2", "vip_port_id": "27c8f167-a10d-4d6f-b7fd-12e4f0373e5e", "provider": "octavia", "pools": [{"id": "95300d77-084a-4015-804f-698d960b8050"}], "id": "9c65fe8b-cc24-4e5b-8dae-bcfb22c0163f", "operating_status": "ONLINE", "name": ""}} _log_request_full /opt/stack/neutron-lbaas/.tox/apiv2/local/lib/python2.7/site-packages/tempest/lib/common/rest_client.py:414

** Affects: neutron
     Importance: Undecided
         Status: New


** Tags: lbaasv2

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https://bugs.launchpad.net/bugs/1573320

Title:
  Neutron-LBaaS v2:  Pool still gets created after
  ListenerPoolProtocolMismatch

Status in neutron:
  New

Bug description:
  1.  Create a Load Balancer.
  2.  Create a Listener with TCP 
  3.  Create a Pool with HTTP
  4.  Observe the following error:  {"NeutronError": {"message": "Listener protocol TCP and pool protocol HTTP are not compatible.", "type": "ListenerPoolProtocolMismatch", "detail": ""}
  5.  List Pools.

  Result:   Pool still gets created after the error.

  Expected:  Pool should not get created if the listener and the pool
  protocols are not compatible.

  Note:  This bug occurs on any mismatch of protocols between listener
  and pool:  TCP vs HTTP, TCP vs HTTPS, TCP vs TERMINATED_HTTPS, HTTP vs
  TCP, etc.

  Log (note the creation of pool "95300d77-084a-4015-804f-698d960b8050"
  after the 409 error):

  2016-04-21 22:15:04.370 17603 INFO tempest.lib.common.rest_client [req-411d6275-9341-4c53-ac13-3a879ae95ed1 ] Request (TestProtocols:
  test_create_listener_and_pool_with_protocol): 409 POST http://127.0.0.1:9696/v2.0/lbaas/pools 0.339s
  2016-04-21 22:15:04.370 17603 DEBUG tempest.lib.common.rest_client [req-411d6275-9341-4c53-ac13-3a879ae95ed1 ] Request - Headers: {'X
  -Auth-Token': '<omitted>', 'Accept': 'application/json', 'Content-Type': 'application/json'}
          Body: {"pool": {"name": "pool-1818041961", "protocol": "HTTP", "admin_state_up": true, "description": "pool_description-15184
  40568", "session_persistence": null, "listener_id": "7e4a7347-4113-4de4-9af9-092fc532bf23", "loadbalancer_id": "9c65fe8b-cc24-4e5b-8d
  ae-bcfb22c0163f", "lb_algorithm": "ROUND_ROBIN"}}
      Response - Headers: {'content-length': '151', 'x-openstack-request-id': 'req-411d6275-9341-4c53-ac13-3a879ae95ed1', 'date': 'Thu,
   21 Apr 2016 22:15:04 GMT', 'content-type': 'application/json', 'connection': 'close', 'status': '409'}
          Body: {"NeutronError": {"message": "Listener protocol TCP and pool protocol HTTP are not compatible.", "type": "ListenerPoolProtocolMismatch", "detail": ""}} _log_request_full /opt/stack/neutron-lbaas/.tox/apiv2/local/lib/python2.7/site-packages/tempest/lib/common/rest_client.py:414
  2016-04-21 22:15:04.590 17603 INFO tempest.lib.common.rest_client [req-97add959-c5f8-4389-8f4a-41708b59cc92 ] Request (TestProtocols:tearDown): 200 GET http://127.0.0.1:9696/v2.0/lbaas/loadbalancers/9c65fe8b-cc24-4e5b-8dae-bcfb22c0163f 0.188s
  2016-04-21 22:15:04.590 17603 DEBUG tempest.lib.common.rest_client [req-97add959-c5f8-4389-8f4a-41708b59cc92 ] Request - Headers: {'X-Auth-Token': '<omitted>', 'Accept': 'application/json', 'Content-Type': 'application/json'}
          Body: None
      Response - Headers: {'content-length': '517', 'x-openstack-request-id': 'req-97add959-c5f8-4389-8f4a-41708b59cc92', 'date': 'Thu, 21 Apr 2016 22:15:04 GMT', 'content-location': 'http://127.0.0.1:9696/v2.0/lbaas/loadbalancers/9c65fe8b-cc24-4e5b-8dae-bcfb22c0163f', 'content-type': 'application/json', 'connection': 'close', 'status': '200'}
          Body: {"loadbalancer": {"description": "", "admin_state_up": true, "tenant_id": "59c6e9a660b94e97b0f2a4919974c220", "provisioning_status": "ACTIVE", "vip_subnet_id": "732198a3-0a70-478a-a4dc-a9cee967f423", "listeners": [{"id": "7e4a7347-4113-4de4-9af9-092fc532bf23"}], "vip_address": "10.100.0.2", "vip_port_id": "27c8f167-a10d-4d6f-b7fd-12e4f0373e5e", "provider": "octavia", "pools": [{"id": "95300d77-084a-4015-804f-698d960b8050"}], "id": "9c65fe8b-cc24-4e5b-8dae-bcfb22c0163f", "operating_status": "ONLINE", "name": ""}} _log_request_full /opt/stack/neutron-lbaas/.tox/apiv2/local/lib/python2.7/site-packages/tempest/lib/common/rest_client.py:414

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