Apologize I have some ‘newbie’ questions on zun.
I have looked a bit at zun ... a few slide decks and a few summit presentation
videos.
I am somewhat familiar with old container orchestration attempts in openstack
... nova and heat.
And somewhat familiar with Magnum for COEs on VMs.
Question 1:
- in long term, will ZUN manage containers hosted by OpenStack VMs or
OpenStack Hosts or both ?
o I think the answer is both, and
o I think technically ZUN will manage the containers in OpenStack VM(s) or
OpenStack Host(s), thru a COE
§ where the COE is kubernetes, swarm, mesos ... or, initially, some very
simple default COE provided by ZUN itself.
Question 2:
- what is currently supported in MASTER ?
Question 3:
- in the scenario where ZUN is managing containers thru Kubernetes
directly on OpenStack Host(s)
o I believe the intent is that,
at the same time, and on the same OpenStack Host(s),
NOVA is managing VMs on the OpenStack Host(s)
o ??? Has anyone started to look at the Resource Management / Arbitration of
the OpenStack Host’s Resources,
between ZUN and NOVA ???
Question 4:
- again, in the scenario where ZUN is managing containers thru
Kubernetes directly on OpenStack Host(s)
- what are the Technical Pros / Cons of this approach, relative to
using OpenStack VM(s) ?
o PROs
§ ??? does this really use less resources than the VM Scenario ???
· is there an example you can walk me thru ?
§ I suppose that instead of pre-allocating resources to a fairly large VM for
hosting containers,
you would only use the resources for the containers that are actually launched,
o CONs
§ for application containers, you are restricted by the OS running on the
OpenStack Host,
Greg.
WIND RIVER
Titanium Cloud
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