How to specify range or direct ip for amphora IP

Bug #2039856 reported by Sergey Kraynev
This bug affects 1 person
Affects Status Importance Assigned to Milestone

Bug Description

There is an complexity (issue) with current processing allocation ip addresses by amphora vms.

For example for topology:

 LB amphora - VM (in the lb network)

Octavia allocates 2 or 3 IP addresses from lb network (1 for VIP, 1 or 2 (active standby LB) for amphora VRRPs):

- Address for VIP could be specified on creation step.
- however Amphora addresses are not under control of user flow.

It makes difficult to control network, because ip could be randomly allocated from whole lb network and also be re-allocated during failover.

For another case, when VM exist in the different network (f.e. net1) and user connect it to LB, an extra ip be allocated from net1. And again it's not possible to say which ip be allocated.

The main question of the current "bug" is:
- is it possible to set range or direct ip for amphora VRRP IP(s)?

Or maybe there is some guideline: how correctly configure VM and LB network to avoid taking random IPs from VM networks.

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