** Also affects: networking-infoblox
Importance: Undecided
Status: New
** Changed in: networking-infoblox
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/1534625
Title:
[Pluggable IPAM] Ipam driver is not called on update subnet if
allocation pools are blank
Status in networking-infoblox:
New
Status in neutron:
In Progress
Bug description:
Currently ipam driver is called on subnet_update only if allocation_pools set
in subnet dict. See [1].
This happens because original design expectation is that the only information
ipam driver
has to update is allocation pools.
For reference ipam driver that is absolutely correct.
But 3rd party ipam vendors might want to utilize this call to keep track of
other fields updates in subnet.
So my suggestion here is to call update_subnet in ipam_driver on each subnet
update
and let ipam driver decide if it has to do some processing or not.
In Infoblox we need it to keep track of dns_nameservers on subnet_update.
Currently we can obtain this dns_nameservers info on subnet update only if
allocation_pools present in subnet_update request.
Is it a bug from neutron perspective?
[1]
https://github.com/openstack/neutron/blob/master/neutron/db/ipam_pluggable_backend.py#L356
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