[Starlingx-discuss] Unable to create tenant network in case of a flat provider network

Giuseppe Sannino km.giuseppesannino at gmail.com
Tue Jan 15 14:54:50 UTC 2019


Hi all,
As per the subject, It seems I can't create a tenant network in case the
provider network has been configured as flat.

That's the way the system looks now:

[wrsroot at controller-0 ~(keystone_admin)]$ system host-if-list controller-0
+--------------------------------------+------+----------+----------+---------+-----------+----------+-------------+---------------------------+-------------------+
| uuid                                 | name | class    | type     | vlan
id | ports     | uses i/f | used by i/f | attributes                |
provider networks |
+--------------------------------------+------+----------+----------+---------+-----------+----------+-------------+---------------------------+-------------------+
| 38da435a-5fc5-44ac-b038-52af9f23d52d | lo   | platform | virtual  | None
  | []        | []       | []          | MTU=1500                  | None
            |
| 7f806264-9c19-45f4-b7d7-df1f90e9d540 | eno5 | platform | ethernet | None
  | [u'eno5'] | []       | []          | MTU=1500                  | None
            |
| 9f7365e8-bc9a-4c9c-8725-72d40f5a18ff | eno6 | data     | ethernet | None
  | [u'eno6'] | []       | []          | MTU=1500,accelerated=True |
public_flat       |
+--------------------------------------+------+----------+----------+---------+-----------+----------+-------------+---------------------------+-------------------+

[wrsroot at controller-0 ~(keystone_admin)]$ openstack providernet list
+--------------------------------------+---------------+------+------+--------+
| ID                                   | Name          | Type |  MTU |
Ranges |
+--------------------------------------+---------------+------+------+--------+
| 197c33ba-6db0-4918-9a0e-e98b01aee1e8 | public_flat   | flat | 1500 |
  |
+--------------------------------------+---------------+------+------+--------+

[wrsroot at controller-0 ~(keystone_admin)]$ openstack providernet show
public_flat
+------------------+--------------------------------------+
| Field            | Value                                |
+------------------+--------------------------------------+
| description      | None                                 |
| id               | 197c33ba-6db0-4918-9a0e-e98b01aee1e8 |
| mtu              | 1500                                 |
| name             | public_flat                          |
| ranges           |                                      |
| status           | ACTIVE                               |
| type             | flat                                 |
| vlan_transparent | False                                |
+------------------+--------------------------------------+


[wrsroot at controller-0 ~(keystone_admin)]$ openstack network list
+--------------------------------------+---------------+--------------------------------------+
| ID                                   | Name          | Subnets
                  |
+--------------------------------------+---------------+--------------------------------------+
| 9d50e31b-e533-4424-b459-53679d2d4eb5 | provider_flat |
2d591fde-0f11-446e-928f-1592ea4e42a7 |
+--------------------------------------+---------------+--------------------------------------+
[wrsroot at controller-0 ~(keystone_admin)]$ openstack network show
provider_flat
+---------------------------+--------------------------------------+
| Field                     | Value                                |
+---------------------------+--------------------------------------+
| admin_state_up            | UP                                   |
| availability_zone_hints   |                                      |
| availability_zones        | nova                                 |
| created_at                | 2019-01-10T10:58:51Z                 |
| description               |                                      |
| dns_domain                | None                                 |
| id                        | 9d50e31b-e533-4424-b459-53679d2d4eb5 |
| ipv4_address_scope        | None                                 |
| ipv6_address_scope        | None                                 |
| is_default                | False                                |
| is_vlan_transparent       | False                                |
| mtu                       | 1500                                 |
| name                      | provider_flat                        |
| port_security_enabled     | False                                |
| project_id                | dc1c43142a0d43578783bc64dc0650f7     |
| provider:network_type     | flat                                 |
| provider:physical_network | public_flat                          |
| provider:segmentation_id  | None                                 |
| qos_policy_id             | None                                 |
| revision_number           | 4                                    |
| router:external           | External                             |
| segments                  | None                                 |
| shared                    | True                                 |
| status                    | ACTIVE                               |
| subnets                   | 2d591fde-0f11-446e-928f-1592ea4e42a7 |
| tags                      |                                      |
| updated_at                | 2019-01-10T11:01:41Z                 |
+---------------------------+--------------------------------------+

[wrsroot at controller-0 ~(keystone_admin)]$ openstack subnet list
+--------------------------------------+------------------+--------------------------------------+-------------+-----------------------+-----------------+
| ID                                   | Name             | Network
                      | Subnet      | Allocation Pools      | WRS-Net:VLAN
ID |
+--------------------------------------+------------------+--------------------------------------+-------------+-----------------------+-----------------+
| 2d591fde-0f11-446e-928f-1592ea4e42a7 | sn_provider_flat |
9d50e31b-e533-4424-b459-53679d2d4eb5 | 10.1.8.0/24 | 10.1.8.100-10.1.8.200
|                 |
+--------------------------------------+------------------+--------------------------------------+-------------+-----------------------+-----------------+
[wrsroot at controller-0 ~(keystone_admin)]$ openstack subnet show
sn_provider_flat
+-------------------------+--------------------------------------+
| Field                   | Value                                |
+-------------------------+--------------------------------------+
| allocation_pools        | 10.1.8.100-10.1.8.200                |
| cidr                    | 10.1.8.0/24                          |
| created_at              | 2019-01-10T10:59:29Z                 |
| description             |                                      |
| dns_nameservers         |                                      |
| enable_dhcp             | True                                 |
| gateway_ip              | 10.1.8.254                           |
| host_routes             |                                      |
| id                      | 2d591fde-0f11-446e-928f-1592ea4e42a7 |
| ip_version              | 4                                    |
| ipv6_address_mode       | None                                 |
| ipv6_ra_mode            | None                                 |
| name                    | sn_provider_flat                     |
| network_id              | 9d50e31b-e533-4424-b459-53679d2d4eb5 |
| project_id              | dc1c43142a0d43578783bc64dc0650f7     |
| revision_number         | 1                                    |
| segment_id              | None                                 |
| service_types           |                                      |
| subnetpool_id           | None                                 |
| tags                    |                                      |
| updated_at              | 2019-01-10T11:01:41Z                 |
| use_default_subnet_pool | None                                 |
| wrs_net_vlan_id         | None                                 |
+-------------------------+--------------------------------------+


If I try to create a tenant network now, I get:


[wrsroot at controller-0 ~(keystone_admin)]$ openstack network create new_nw
Error while executing command: Unable to create the network. No tenant
network is available for allocation. (HTTP 503) (Request-ID:
req-14d0ad64-cdc4-47f4-9b43-4299a3aec8d5)

In case of a "vlan" provider network I have no limitation.

Any suggestion ?

Many thanks

BR
/Giuseppe
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