openstack FIP set without router fails with "Unknown error"

[Alex Stafeyev]

Queen
Assiging FIP when there is nor router between the external and internal networks show " unknown error" instead of

"External network b6093932-a55d-4f9a-8af0-f6f953c3a443 is not reachable from subnet 535a9a47-6797-454f-a1dc-eeda6ace87d8. Therefore, cannot associate Port 8af20b95-fbf3-4116-b630-68cc7b468060 with a Floating IP.
Neutron server returns request_ids: ['req-73ab75d2-5b3b-42ef-9604-37cc539ef0cc']" as with neutron client.

Case:
(.venv) (overcloud) [stack@c09-h04-r630 octavia-tempest-plugin]$
(.venv) (overcloud) [stack@c09-h04-r630 octavia-tempest-plugin]$ openstack floating ip set 172.168.30.221 --port 8af20b95-fbf3-4116-b630-68cc7b468060
NotFoundException: Unknown error
(.venv) (overcloud) [stack@c09-h04-r630 octavia-tempest-plugin]$ neutron router-create Router_eNet
neutron CLI is deprecated and will be removed in the future. Use openstack CLI instead.
Created a new router:
+-------------------------+--------------------------------------+
| Field | Value |
+-------------------------+--------------------------------------+
| admin_state_up | True |
| availability_zone_hints | |
| availability_zones | |
| created_at | 2018-04-01T10:30:47Z |
| description | |
| external_gateway_info | |
| flavor_id | |
| ha | True |
| id | b7364546-0227-4de9-beaa-ef5ea848ec0b |
| name | Router_eNet |
| project_id | a4c33cca12ea4b7e892f80f1009a2363 |
| revision_number | 2 |
| routes | |
| status | ACTIVE |
| tags | |
| tenant_id | a4c33cca12ea4b7e892f80f1009a2363 |
| updated_at | 2018-04-01T10:30:47Z |
+-------------------------+--------------------------------------+
(.venv) (overcloud) [stack@c09-h04-r630 octavia-tempest-plugin]$ neutron router-list
neutron CLI is deprecated and will be removed in the future. Use openstack CLI instead.
+--------------------------------------+-------------+----------------------------------+-----------------------+------+
| id | name | tenant_id | external_gateway_info | ha |
+--------------------------------------+-------------+----------------------------------+-----------------------+------+
| b7364546-0227-4de9-beaa-ef5ea848ec0b | Router_eNet | a4c33cca12ea4b7e892f80f1009a2363 | null | True |
+--------------------------------------+-------------+----------------------------------+-----------------------+------+
(.venv) (overcloud) [stack@c09-h04-r630 octavia-tempest-plugin]$ neutron router-interface-add Router_eNet subnet=int_sub
neutron CLI is deprecated and will be removed in the future. Use openstack CLI instead.
Added interface 78ecc2d2-769e-4746-ac59-449b620cdec6 to router Router_eNet.
(.venv) (overcloud) [stack@c09-h04-r630 octavia-tempest-plugin]$ neutron router-gateway-set Router_eNet admin-ext
neutron CLI is deprecated and will be removed in the future. Use openstack CLI instead.
Set gateway for router Router_eNet
(.venv) (overcloud) [stack@c09-h04-r630 octavia-tempest-plugin]$ openstack floating ip set 172.168.30.221 --port 8af20b95-fbf3-4116-b630-68cc7b468060
(.venv) (overcloud) [stack@c09-h04-r630 octavia-tempest-plugin]$

[Lujin Luo (luo-lujin)]

Reproduced in master too.

[Brian Haley (brian-haley)]

So it seems neutron-server returns the error we want:

GET call to network for http://10.18.57.22:9696/v2.0/ports/40cb7567-8860-45db-8e40-fca62dc9bad2 used request id req-c7f5bf78-b3bb-42d9-a9d1-7748ce99aed8
Manager RegionOne ran task network.GET.ports in 0.052374124527s
Manager RegionOne running task network.PUT.floatingips
REQ: curl -g -i -X PUT http://10.18.57.22:9696/v2.0/floatingips/5d0dc3fa-fb22-42ad-b4c0-b539d47c6d4f -H "User-Agent: openstacksdk/0.12.0 keystoneauth1/3.4.0 python-requests/2.18.4 CPython/2.7.12" -H "Content-Type: application/json" -H "X-Auth-Token: {SHA1}bfc29239739b3c075a7f986dc54fdec33e773b0e" -d '{"floatingip": {"port_id": "40cb7567-8860-45db-8e40-fca62dc9bad2"}}'
http://10.18.57.22:9696 "PUT /v2.0/floatingips/5d0dc3fa-fb22-42ad-b4c0-b539d47c6d4f HTTP/1.1" 404 306
RESP: [404] Content-Type: application/json Content-Length: 306 X-Openstack-Request-Id: req-22430595-ba29-4cd7-9679-8f3e49289a15 Date: Fri, 06 Apr 2018 01:35:19 GMT Connection: keep-alive
RESP BODY: {"NeutronError": {"message": "External network 62de8874-0e12-466a-8e21-2f93910b04dc is not reachable from subnet 2415fbfd-52a7-4fbb-af83-4607505f207a. Therefore, cannot associate Port 40cb7567-8860-45db-8e40-fca62dc9bad2 with a Floating IP.", "type": "ExternalGatewayForFloatingIPNotFound", "detail": ""}}

But the client didn't decode it correctly? Could be a bug in the openstackclient.

[Brian Haley (brian-haley)]

The "old" neutronclient shows the correct failure message:

$ neutron floatingip-associate 5d0dc3fa-fb22-42ad-b4c0-b539d47c6d4f 40cb7567-8860-45db-8e40-fca62dc9bad2
neutron CLI is deprecated and will be removed in the future. Use openstack CLI instead.
External network 62de8874-0e12-466a-8e21-2f93910b04dc is not reachable from subnet 2415fbfd-52a7-4fbb-af83-4607505f207a. Therefore, cannot associate Port 40cb7567-8860-45db-8e40-fca62dc9bad2 with a Floating IP.

[Brian Haley (brian-haley)]

@Dongcan - have you had a chance to look at this yet? It actually affects more than just floating ip commands. Thanks.

[Dongcan Ye (hellochosen)]

@Brian Haley, sorry for the late, I'll look at this bug in recent days.

[Brian Haley (brian-haley)]

Now being tracked in storyboard.

https://storyboard.openstack.org/#!/story/1760405

[yanpuqing (ycx)]

These patches fixed the bug.
https://review.openstack.org/#/c/555142/
https://review.openstack.org/#/c/571101/

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstacksdk 0.14.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstacksdk 0.11.4 release.