Octavia LB not working

Hi Team,

I have deployed the Ubuntu OpenStack Yoga version with the Octavia load balancer. By default, the LB management network is IPv6. LB provisioning status is Error due to the below error. Is it a bug or have I missed some configuration?

Error from /var/log/octavia/octavia-worker.log

2023-09-07 13:50:10.835 187596 WARNING octavia.amphorae.drivers.haproxy.rest_api_driver [-] Could not connect to instance. Retrying.: requests.exceptions.ConnectTimeout: HTTPSConnectionPool(host='fc00:158f:84b2:5bb9:f816:3eff:fec2:f536', port=9443): Max retries exceeded with url: // (Caused by ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7feeac481400>, 'Connection to fc00:158f:84b2:5bb9:f816:3eff:fec2:f536 timed out. (connect timeout=10.0)'))
2023-09-07 13:50:15.865 187596 WARNING octavia.controller.worker.v2.controller_worker [-] Task 'STANDALONE-octavia-create-amp-for-lb-subflow-octavia-amp-compute-connectivity-wait' (8d2f480a-8e8e-4992-b5ca-648615dd7104) transitioned into state 'REVERTED' from state 'REVERTING'
2023-09-07 13:50:25.924 187596 WARNING octavia.amphorae.drivers.haproxy.rest_api_driver [-] Could not connect to instance. Retrying.: requests.exceptions.ConnectTimeout: HTTPSConnectionPool(host='fc00:158f:84b2:5bb9:f816:3eff:fec2:f536', port=9443): Max retries exceeded with url: // (Caused by ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7feeac3bc310>, 'Connection to fc00:158f:84b2:5bb9:f816:3eff:fec2:f536 timed out. (connect timeout=10.0)'))
2023-09-07 13:50:30.956 187596 WARNING octavia.controller.worker.v2.controller_worker [-] Task 'STANDALONE-octavia-create-amp-for-lb-subflow-octavia-amp-compute-connectivity-wait' (8d2f480a-8e8e-4992-b5ca-648615dd7104) transitioned into state 'REVERTED' from state 'REVERTING'
2023-09-07 13:50:41.009 187596 WARNING octavia.amphorae.drivers.haproxy.rest_api_driver [-] Could not connect to instance. Retrying.: requests.exceptions.ConnectTimeout: HTTPSConnectionPool(host='fc00:158f:84b2:5bb9:f816:3eff:fec2:f536', port=9443): Max retries exceeded with url: // (Caused by ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7feeac3bcaf0>, 'Connection to fc00:158f:84b2:5bb9:f816:3eff:fec2:f536 timed out. (connect timeout=10.0)'))
2023-09-07 13:50:46.039 187596 WARNING octavia.controller.worker.v2.controller_worker [-] Task 'STANDALONE-octavia-create-amp-for-lb-subflow-octavia-amp-compute-connectivity-wait' (8d2f480a-8e8e-4992-b5ca-648615dd7104) transitioned into state 'REVERTED' from state 'REVERTING'

Octavia unit status:

root@staging-maas:~# juju status octavia/0
Model              Controller       Cloud/Region      Version  SLA          Timestamp
openstack-staging  maas-controller  maas-one/default  2.9.44   unsupported  19:39:18+05:30

App                   Version  Status  Scale  Charm         Channel       Rev  Exposed  Message
octavia               10.0.0   active      1  octavia       yoga/stable   191  no       Unit is ready
octavia-mysql-router  8.0.34   active      1  mysql-router  8.0/stable     90  no       Unit is ready
octavia-ovn-chassis   22.03.2  active      1  ovn-chassis   22.03/stable  143  no       Unit is ready

Unit                       Workload  Agent  Machine  Public address  Ports     Message
octavia/0*                 active    idle   1/lxd/9  10.90.5.100     9876/tcp  Unit is ready
  octavia-mysql-router/0*  active    idle            10.90.5.100               Unit is ready
  octavia-ovn-chassis/0*   active    idle            10.90.5.100               Unit is ready

Machine  State    Address      Inst id               Series  AZ       Message
1        started  10.90.2.97   staging-controller-1  focal   default  Deployed
1/lxd/9  started  10.90.5.100  juju-c43860-1-lxd-9   focal   default  Container started

OpenStack network list:

[root@runner OPENSTACK]# openstack network list --insecure
+--------------------------------------+---------------+--------------------------------------+
| ID                                   | Name          | Subnets                              |
+--------------------------------------+---------------+--------------------------------------+
| 1b38fc28-d56c-49d8-97d3-27ad0f0ddedf | admin-private | 879ea6c2-d552-4d76-8b75-7de95da69f63 |
| 81ff05f8-6867-4295-bcde-66b7e6e7f4b8 | External      | f500464a-401e-4a9a-8851-ba368a9e2abd |
| db6b82b0-ea1d-4c3d-b3c1-158f84b25bb9 | lb-mgmt-net   | 2d73ea3a-e834-4774-9ea1-2d75ef890615 |
+--------------------------------------+---------------+--------------------------------------+

OpenStack LB management network info:

[root@runner OPENSTACK]# openstack network show db6b82b0-ea1d-4c3d-b3c1-158f84b25bb9 --insecure
+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------+
| Field                     | Value                                                                                                                                            |
+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up            | UP                                                                                                                                               |
| availability_zone_hints   |                                                                                                                                                  |
| availability_zones        |                                                                                                                                                  |
| created_at                | 2023-09-07T08:44:29Z                                                                                                                             |
| description               |                                                                                                                                                  |
| dns_domain                | None                                                                                                                                             |
| id                        | db6b82b0-ea1d-4c3d-b3c1-158f84b25bb9                                                                                                             |
| ipv4_address_scope        | None                                                                                                                                             |
| ipv6_address_scope        | None                                                                                                                                             |
| is_default                | None                                                                                                                                             |
| is_vlan_transparent       | None                                                                                                                                             |
| location                  | cloud='', project.domain_id=, project.domain_name=, project.id='52c108594f7d40928a9263a411175123', project.name=, region_name='RegionOne', zone= |
| mtu                       | 1442                                                                                                                                             |
| name                      | lb-mgmt-net                                                                                                                                      |
| port_security_enabled     | True                                                                                                                                             |
| project_id                | 52c108594f7d40928a9263a411175123                                                                                                                 |
| provider:network_type     | geneve                                                                                                                                           |
| provider:physical_network | None                                                                                                                                             |
| provider:segmentation_id  | 1391                                                                                                                                             |
| qos_policy_id             | None                                                                                                                                             |
| revision_number           | 4                                                                                                                                                |
| router:external           | Internal                                                                                                                                         |
| segments                  | None                                                                                                                                             |
| shared                    | True                                                                                                                                             |
| status                    | ACTIVE                                                                                                                                           |
| subnets                   | 2d73ea3a-e834-4774-9ea1-2d75ef890615                                                                                                             |
| tags                      | charm-octavia                                                                                                                                    |
| updated_at                | 2023-09-07T13:38:47Z                                                                                                                             |
+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------+

OpenStack LB status:

[root@runner OPENSTACK]# openstack loadbalancer show 0f6958d0-82da-4772-8f7d-9d293818a787 --insecure
+---------------------+--------------------------------------+
| Field               | Value                                |
+---------------------+--------------------------------------+
| admin_state_up      | True                                 |
| availability_zone   | None                                 |
| created_at          | 2023-09-07T13:20:21                  |
| description         |                                      |
| flavor_id           | None                                 |
| id                  | 0f6958d0-82da-4772-8f7d-9d293818a787 |
| listeners           |                                      |
| name                | raja123                              |
| operating_status    | OFFLINE                              |
| pools               |                                      |
| project_id          | 722a251f2d024bb9af27cd462c91ac12     |
| provider            | amphora                              |
| provisioning_status | ERROR                                |
| updated_at          | 2023-09-07T13:51:17                  |
| vip_address         | 192.168.1.152                        |
| vip_network_id      | 1b38fc28-d56c-49d8-97d3-27ad0f0ddedf |
| vip_port_id         | da1e840b-9349-4dad-8a05-910cd0e17f84 |
| vip_qos_policy_id   | None                                 |
| vip_subnet_id       | 879ea6c2-d552-4d76-8b75-7de95da69f63 |
+---------------------+--------------------------------------+