Comment 6 for bug 1961088

> [health_manager]
> +bind_ip = fc00:675d:4035:73b3:f816:3eff:fe7a:e0b0
> controller_ip_port_list = fc00:675d:4035:73b3:f816:3eff:fe7a:e0b0:5555

This is weird because in the initial deployment controller_ip_port_list has the exact and expected IPv6 address, but bind_ip wasn't filled with the same one.

Looks like controller_ip_port_list is from Neutron API, and bind_ip is from the actual unit.

$ openstack port list --tag charm-octavia --format yaml
- Fixed IP Addresses:
  - ip_address: fc00:675d:4035:73b3:f816:3eff:fe7a:e0b0
    subnet_id: aac5a632-6fb0-4d2a-a8eb-483dd0963c8a
  ID: 393092c8-3391-4505-b982-e1c0cfec48a9
  MAC Address: fa:16:3e:7a:e0:b0
  Name: octavia-health-manager-octavia-0-listen-port
  Status: DOWN