[Senlin][Octavia] Health policy - LB_STATUS_POLLING detection mode

Hi folks,

I'd like to know what is the status of making the LB_STATUS_POLLING detection mode available for the Senlin Health Policy [1]. According to the docs and this patch [2], the implementation of this feature is blocked by some issue on LBaaS/Octavia side, but I could not find any details on what this issue really is.

As the docs state, it would be really useful to have this detection mode available, as it is much more reliable than the others at evaluating the status of an application. If I can be of any help, I would be willing to contribute.

Thanks in advance.

Kind regards.

Giacomo

[1] https://docs.openstack.org/senlin/latest/contributor/policies/health_v1.html... [2] https://review.opendev.org/c/openstack/senlin/+/423012