Hi Andrew,
sorry for delay in responding, there were Ukrainian Independence Day and
we were on holidays, spending time with family and friends :)
On 8/24/17 6:36 PM, 공용준 wrote:
There is another scenario. It's going to be public cloud and there
can be few reasons to allow customer to move pubic IP address between
his VMs, e.g. he built another VM using another OS for same role and
need to move this role from old VM to new VM, do not changing other
infrastructure's configurations. Five or ten seconds of cool down
time isn't a problem itself, since it's not for high availability
Did you consider the lbaas for this purpose? I think floating IP’s
concept is good, but the implementation I think we need to rethink
about this.
and I thinks opentack’s octavia also do the job.
Yes, I'm considering LBaaS, but as another service in my public cloud :)
So, don't want to provide it as part of base set of services.
I will check what you did in order to solve this issue, but preliminary
I think that you're right and floating IP is the best solution for this
(since don't require Openstack modification). The only concern I have
regarding floating IP is performance since NAT is involved and this can
lead to performance degradation. I think I will provide two kinds of IP
addresses - fixed and transferable. And if somebody needs to preserve IP
address between two different instance, he will choose transferable IP
for additional cost - this will prevent massive NAT, on the one hand and
will compensate additional resources exhaustion, on the other.
Thank you!
--
Volodymyr Litovka
"Vision without Execution is Hallucination." -- Thomas Edison
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