openstack team mailing list archive

[laserjetyang <laserjetyang@xxxxxxxxx>]

it looks like you have an old environment and want to transfer all the
instance to your openstack environment.
I used to do this for KVM instance by writing some scripts in nova-network
environment.


On Sun, Jul 28, 2013 at 12:03 PM, Deepak Jeswani1 <dejeswan@xxxxxxxxxx>wrote:

> Hi Jay,
>
> Many thanks for your prompt reply. I don't want to go via image registry
> way as it has overhead of two copies (copy to swift and then openstack
> copies image to host for launch). Rather I was thinking to launch an
> instance (using any image with same resources as my image), and then when I
> want to transfer my image, just replace image of instance on host. I know
> it may break couple of things, network being one. BUt I am trying to figure
> out what all can go wrong and fix it before (or after) I ave copied my
> image.
>
> Please let me know your thoughts on this route to tranfer instance.
>
> Thanks
>
> Regards
> Deepak
>
>
>
>
> From:   Jay Pipes <jaypipes@xxxxxxxxx>
> To:     openstack@xxxxxxxxxxxxxxxxxxx,
> Date:   07/26/2013 10:30 PM
> Subject:        Re: [Openstack] manage personal instance from openstack
> Sent by:        "Openstack" <openstack-bounces
>             +dejeswan=in.ibm.com@xxxxxxxxxxxxxxxxxxx>
>
>
>
> On 07/26/2013 05:10 AM, Deepak Jeswani1 wrote:
> >
> > Hi everyone,
> >
> > I have an instance running various applications in my environment and I
> > want to  transfer it to Openstack. One way is to take image of my
> instance,
> > register it with Openstack image library and then create an instance out
> of
> > it. I am wondering whether there can be a direct way to register it with
> > Openstack.
> >
> > Please suggest me a good way to transfer my instance to Openstack.
>
> If you have a Swift installation, it's quite easy.
>
> 1) Snapshot your instance in your VMWare or Virtualbox environment
> 2) Convert the snapshot to a format that the hypervisor used in your
> OpenStack environment supports (ISO or QCOW2 is easiest for KVM)
> 3) Upload your converted image into Swift
> 4) Issue a call to Glance to register your image from Swift:
>
> glance image-create --disk-format=<FORMAT> --container-format=<FORMAT>
> --location=<SWIFT_URI>
>
> The image will then appear in your tenant's list of images in Horizon or
> glance image-list, and you may use it to launch an instance.
>
> All the best,
> -jay
>
> p.s. You don't necessarily need to use Swift, either... you could always
> just place your converted image on a web server somewhere and replace
> <SWIFT_URI> with the URI of your image.
>
>
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