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[Assaf Muller <amuller@xxxxxxxxxx>]

Confirmed bug.

I don't see how this is an 'opinion', Neutron is clearly screwing up
here.

** Changed in: neutron
       Status: Opinion => Confirmed

** Tags added: l3-ipam-dhcp

** Changed in: neutron
   Importance: Medium => Undecided

** Changed in: neutron
   Importance: Undecided => Low

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https://bugs.launchpad.net/bugs/1397087

Title:
  Bulk port create fails with conflict with some addresses fixed

Status in neutron:
  Confirmed

Bug description:
  In the bulk version of the port create request, multiple port
  creations may be requested.

  If there is a port without specifying an fixed_ip address, one is
  assigned to it. If a later port requests the same address, a conflict
  is detected and raised. The overall call's succeeds or fails depending
  on which addresses from the pool are set to be assigned next, and the
  order of the requested ports.

  Steps to reproduce:

  # neutron net-create test_fixed_ports
  Created a new network:
  +---------------------------+--------------------------------------+
  | Field                     | Value                                |
  +---------------------------+--------------------------------------+
  | admin_state_up            | True                                 |
  | id                        | af3b3cc8-b556-4604-a4fe-ae9bffa8cd9e |
  | name                      | test_fixed_ports                     |
  | provider:network_type     | vxlan                                |
  | provider:physical_network |                                      |
  | provider:segmentation_id  | 4                                    |
  | shared                    | False                                |
  | status                    | ACTIVE                               |
  | subnets                   |                                      |
  | tenant_id                 | d42d65485d674e0a9d007a06182e46f7     |
  +---------------------------+--------------------------------------+

  # neutron subnet-create test_fixed_ports 10.0.0.0/24
  Created a new subnet:
  +------------------+--------------------------------------------+
  | Field            | Value                                      |
  +------------------+--------------------------------------------+
  | allocation_pools | {"start": "10.0.0.2", "end": "10.0.0.254"} |
  | cidr             | 10.0.0.0/24                                |
  | dns_nameservers  |                                            |
  | enable_dhcp      | True                                       |
  | gateway_ip       | 10.0.0.1                                   |
  | host_routes      |                                            |
  | id               | 5369fb82-8ff6-4ec5-acf7-1d86d0ec9d2a       |
  | ip_version       | 4                                          |
  | name             |                                            |
  | network_id       | af3b3cc8-b556-4604-a4fe-ae9bffa8cd9e       |
  | tenant_id        | d42d65485d674e0a9d007a06182e46f7           |
  +------------------+--------------------------------------------+

  # cat ports.data
  {"ports": [
      {
          "name": "A",
          "network_id": "af3b3cc8-b556-4604-a4fe-ae9bffa8cd9e"
      }, {
          "fixed_ips": [{"ip_address": "10.0.0.2"}],
          "name": "B",
          "network_id": "af3b3cc8-b556-4604-a4fe-ae9bffa8cd9e"
      }
  ]}

  # TOKEN='a valid keystone token'

  # curl  -H 'Content-Type: application/json' -H 'X-Auth-Token: '$TOKEN -X POST "http://127.0.1.1:9696/v2.0/ports"; -d@xxxxxxxxxx
  {"NeutronError": {"message": "Unable to complete operation for network af3b3cc8-b556-4604-a4fe-ae9bffa8cd9e. The IP address 10.0.0.2 is in use.", "type": "IpAddressInUse", "detail": ""}}

  Positive case:

  # cat ports.data.rev
  {"ports": [
      {
          "name": "A",
          "fixed_ips": [{"ip_address": "10.0.0.2"}],
          "network_id": "af3b3cc8-b556-4604-a4fe-ae9bffa8cd9e"
      }, {
          "name": "B",
          "network_id": "af3b3cc8-b556-4604-a4fe-ae9bffa8cd9e"
      }
  ]}

  # curl  -H 'Content-Type: application/json' -H 'X-Auth-Token: '$TOKEN -X POST "http://127.0.1.1:9696/v2.0/ports"; -d@xxxxxxxxxxxxxx
  {"ports": [{"status": "DOWN", "binding:host_id": "", "name": "A", "admin_state_up": true, "network_id": "af3b3cc8-b556-4604-a4fe-ae9bffa8cd9e", "tenant_id": "7b3e2f49d1fc4154ac5af10a4b9862c5", "binding:vif_details": {}, "binding:vnic_type": "normal", "binding:vif_type": "unbound", "device_owner": "", "mac_address": "fa:16:3e:16:1e:50", "binding:profile": {}, "fixed_ips": [{"subnet_id": "5369fb82-8ff6-4ec5-acf7-1d86d0ec9d2a", "ip_address": "10.0.0.2"}], "id": "75f5cdb7-5884-4583-9db1-73b946f94a04", "device_id": ""}, {"status": "DOWN", "binding:host_id": "", "name": "B", "admin_state_up": true, "network_id": "af3b3cc8-b556-4604-a4fe-ae9bffa8cd9e", "tenant_id": "7b3e2f49d1fc4154ac5af10a4b9862c5", "binding:vif_details": {}, "binding:vnic_type": "normal", "binding:vif_type": "unbound", "device_owner": "", "mac_address": "fa:16:3e:8a:15:7f", "binding:profile": {}, "fixed_ips": [{"subnet_id": "5369fb82-8ff6-4ec5-acf7-1d86d0ec9d2a", "ip_address": "10.0.0.3"}], "id": "0e04e694-e573-474f-9c01-979c4967bdf8", "device_id": ""}]}

  Both versions would succeed if an address other than 10.0.0.2 were
  chosen.

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