Libguestfs - Oct 2018 - Re: VM migration help required.

On Mon, Oct 1, 2018 at 12:25 PM Nitin Rane <Nitin.Rane@techmahindra.com>
wrote:
> Hi Arik,Shahar,
>
(Adding libguestfs mailing-list)

Hi Nitin,

> I am looking to migrate VMs from Openstack Juno to Openstack Newton and
> from VMWare to Openstack Newton.
>
> While doing google search I came across the link authored by you,
>
https://ovirt.org/develop/release-management/features/virt/virt-v2v-integration/
> .
>
> Did the tool discussed in the link would be suitable for above requirement
> ?
>
I did not find any download link of the tool, if the tool is open
source
> then can you share the download link.
>
No, that feature is about wrapping virt-v2v in order to provide end-users
of oVirt with a better process for importing VMs to oVirt. It is irrelevant
for OpenStack.

>
>
> Right now I am looking to execute a PoC project to demonstrate that the
> “VM migration from Openstack Juno to Openstack Newton and from VMWare to
> Openstack Newton” is possible using virt-v2v.
>
The virt-v2v tool, which is part of libguestfs, is ideal for converting VMs
from foreign hypervisors to KVM, and from VMware to OpenStack in
particular, see [1].
However, as far as I know, it is not supposed to be used for converting
from one version of OpenStack to another, you could probably do that
differently.

[1] http://libguestfs.org/virt-v2v.1.html

>
>
> Regards
>
> Nitin Rane
>
> Hinjawadi | 256118 | +919822300715
>
>
>
>
>
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On Tue, Oct 02, 2018 at 12:27:54PM +0300, Arik Hadas
wrote:
> On Mon, Oct 1, 2018 at 12:25 PM Nitin Rane
<Nitin.Rane@techmahindra.com>
> wrote:
> 
> > Hi Arik,Shahar,
> >
> 
> (Adding libguestfs mailing-list)
> 
> Hi Nitin,
> 
> 
> > I am looking to migrate VMs from Openstack Juno to Openstack Newton
and
As Arik says, you should _not_ use virt-v2v when moving from KVM to KVM.
> > from VMWare to Openstack Newton.
However this _is_ the intended use case for virt-v2v.

We recently added upstream support to directly upload VMs to OpenStack:

  http://libguestfs.org/virt-v2v.1.html#output-to-openstack

It's available in Fedora Rawhide or by compiling from source, and will
be part of the next upstream release of libguestfs (1.40, soonish).

Also I have built a virt-v2v package which supports ‘-o openstack’ for
RHEL 7.6 which you can install from this repository:

  https://people.redhat.com/~rjones/virt-v2v-RHEL-7.6-lp/

We're also developing a graphical user interface to drive this as part
of the ManageIQ project.

  http://manageiq.org/

But right now you have to read the manual and drive it from the
command line.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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On Tue, Oct 02, 2018 at 11:05:40AM +0000, Roman Kagan
wrote:
> On Tue, Oct 02, 2018 at 11:27:50AM +0100, Richard W.M. Jones wrote:
> > On Tue, Oct 02, 2018 at 12:27:54PM +0300, Arik Hadas wrote:
> > > On Mon, Oct 1, 2018 at 12:25 PM Nitin Rane
<Nitin.Rane@techmahindra.com>
> > > > I am looking to migrate VMs from Openstack Juno to Openstack
Newton and
> > 
> > As Arik says, you should _not_ use virt-v2v when moving from KVM to
KVM.
> 
> I'm curious what's wrong with it?  I'd expect it to work just
fine...
It makes a bunch of unnecessary changes to the guest configuration.

It's not forbidden, it's just not a good idea.

(This might not apply in your specific use case where you're trying to
install virtio drivers, I'm talking about general v2v users.)

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-top is 'top' for virtual machines.  Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://people.redhat.com/~rjones/virt-top