Hi Arnaud,
It's really good to know that your team are proposing the vcenter driver with
OVA+glance datastore backend support. Thanks for sharing the information. OVA
would be a good choice which will benefit users by avoiding only use flat image
limited from current driver.
But in my opinion, it may not conflict with deploying from template. From an
end user perpective, if there are already a set of templates within vcenter,
it's good for him to have openstack to deploy VM from it directly. He can
touch an empty image in glance only with the metadata pointing to the template
name. And boot vm from it. Also he can freely choose to generate a *ova with
vmdk stream file and placed in certain datastore and deploy from VM from image
location pointing to the datastore. These are two different usage scenarios
per my understanding.
And to go further, if there are some mechnism, that openstack can sync exsiting
VM templates into Glance images. It can make this function more useful.
Best Regards
Zarric(Zhu Zhu)
From: Arnaud Legendre
Date: 2013-12-18 01:58
To: OpenStack Development Mailing List (not for usage questions)
Subject: Re: [openstack-dev] [Nova][VMware] Deploy from vCenter template
Hi Qui Xing,
We are planning to address the vCenter template issue by levering the OVF/OVA
capabilities.
Kiran's implementation is tied to a specific VC and requires to add Glance
properties that are not generic.
For existing templates, the workflow will be:
. generate an *.ova tarball (containing the *.ovf descriptor + *.vmdk
stream-optimized) out of the template,
. register the *.ova as a Glance image location (using the VMware Glance driver
see bp [1]) or simply upload the *.ova to another Glance store,
. The VMware driver in Nova will be able to consume the *.ova (either through
the location or by downloading the content to the cache): see bp [2]. However,
for Icehouse, we are not planning to actually consume the *.ovf descriptor
(work scheduled for the J/K release).
[1]
https://blueprints.launchpad.net/glance/+spec/vmware-datastore-storage-backend
[2] https://blueprints.launchpad.net/nova/+spec/vmware-driver-ova-support
If you have questions about [1], please send me an email. For [2], please reach
vuil.
Thanks,
Arnaud
From: "Shawn Hartsock"
To: "OpenStack Development Mailing List (not for usage questions)"
Sent: Monday, December 16, 2013 9:37:34 AM
Subject: Re: [openstack-dev] [Nova][VMware] Deploy from vCenter template
IIRC someone who shows up at
https://wiki.openstack.org/wiki/Meetings/VMwareAPI#Meetings is planning on
working on that again for Icehouse-3 but there's some new debate on the best
way to implement the desired effect. The goal of that change would be to avoid
streaming the disk image out of vCenter for the purpose of then streaming the
same image back into the same vCenter. That's really inefficient.
So there's a Nova level change that could happen (that's the patch you saw) and
there's a Glance level change that could happen, and there's a combination of
both approaches that could happen.
If you want to discuss it informally with the group that's looking into the
problem I could probably make sure you end up talking to the right people on
#openstack-vmware or if you pop into the weekly team meeting on IRC you could
mention it during open discussion time.
On Mon, Dec 16, 2013 at 3:27 AM, Qing Xin Meng wrote:
I saw a commit for Deploying from VMware vCenter template and found it's
abandoned.
https://review.openstack.org/#/c/34903
Anyone knows the plan to support the deployment from VMware vCenter template?
Thanks!
Best Regards
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