[Bug 1482763] [NEW] [LbaasV2] lbaas-listener create does not fail even when lbaas VIP port is in use by nova VM

[Divya ChanneGowda]

Public bug reported:


This is a negative test case i was trying out:

neutron lbaas-loadbalancer-create --name lb1 <subnet1>
This create a lbaas VIP port
 id                                   | name                                              | mac_address       | fixed_ips 
ce3b7dd6-d485-4db9-9b5d-7c0ca8df28b5 | loadbalancer-30d76d85-af44-4353-8852-6441ff9901a9 | fa:16:3e:3c:a0:8b | {"subnet_id": "095cab5a-c64f-4655-9900-84ffdee023e4", "ip_address": "30.40.60.2"}

Now if i try to boot a VM using this VIP port, VM boot goes through
fine.

 nova boot negative_test  --nic port-id=ce3b7dd6-d485-4db9-9b5d-
7c0ca8df28b5

1. Should using the lbaas VIP port for nova boot be blocked??

After the VM boot, device_owner on VIP port is updated to nova:compute

neutron port-show ce3b7dd6-d485-4db9-9b5d-7c0ca8df28b5
+-----------------------+-----------------------------------------------------------------------------------+
| Field                 | Value                                                                             |
+-----------------------+-----------------------------------------------------------------------------------+
| admin_state_up        | False                                                                             |
| allowed_address_pairs |                                                                                   |
| binding:vif_details   | {"port_filter": false}                                                            |
| binding:vif_type      | ovs                                                                               |
| device_id             | 5c3ebb4c-d6e9-4cb7-b2d3-56fd78519b49                                              |
| device_owner          | compute:nova                                                                      |
| fixed_ips             | {"subnet_id": "095cab5a-c64f-4655-9900-84ffdee023e4", "ip_address": "30.40.60.2"} |
| id                    | ce3b7dd6-d485-4db9-9b5d-7c0ca8df28b5                                              |
| mac_address           | fa:16:3e:3c:a0:8b                                                                 |
| name                  | loadbalancer-30d76d85-af44-4353-8852-6441ff9901a9                                 |
| network_id            | a65b90fd-3659-4825-b0f3-8f1b5bee4875                                              |
| security_groups       | bdb4b149-8b77-45fc-ad5f-d4f1c4784545                                              |
| status                | ACTIVE                                                                            |
| tenant_id             | ceeb2e8e5fcd40d9a9f42a7cd691e789                                                  |
+-----------------------+---------------------------------------


Now when i try to create a listener, this doesn't throw any error, the port owner gets updates to lbaasv2

neutron port-show ce3b7dd6-d485-4db9-9b5d-7c0ca8df28b5
+-----------------------+-----------------------------------------------------------------------------------+
| Field                 | Value                                                                             |
+-----------------------+-----------------------------------------------------------------------------------+
| admin_state_up        | True                                                                              |
| allowed_address_pairs |                                                                                   |
| binding:vif_details   | {"port_filter": false}                                                            |
| binding:vif_type      | ovs                                                                               |
| device_id             | 27ba8ec3-c3d9-5eb2-baa4-aee774ee9da0                                              |
| device_owner          | neutron:LOADBALANCERV2                                                            |
| fixed_ips             | {"subnet_id": "095cab5a-c64f-4655-9900-84ffdee023e4", "ip_address": "30.40.60.2"} |
| id                    | ce3b7dd6-d485-4db9-9b5d-7c0ca8df28b5                                              |
| mac_address           | fa:16:3e:3c:a0:8b                                                                 |
| name                  | loadbalancer-30d76d85-af44-4353-8852-6441ff9901a9                                 |
| network_id            | a65b90fd-3659-4825-b0f3-8f1b5bee4875                                              |
| security_groups       | bdb4b149-8b77-45fc-ad5f-d4f1c4784545                                              |
| status                | ACTIVE                                                                            |
| tenant_id             | ceeb2e8e5fcd40d9a9f42a7cd691e789  


2.  Shouldn't listener-create fail when VIP port is already in use ??

** Affects: neutron-lbaas (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  [LbaasV2] lbaas-listener create does not fail even when lbaas VIP port
  is in use by nova VM

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