[ovirt-users] VM Deployment By Template
Punit Dambiwal
hypunit at gmail.com
Fri Aug 29 01:25:15 UTC 2014
Hi All,
I read this article...can this help...
https://catn.com/2013/06/03/resize-a-centos-virtual-machine-image/
Thanks,
Punit
On Thu, Aug 28, 2014 at 10:33 PM, Michal Skrivanek <
michal.skrivanek at redhat.com> wrote:
>
> On Aug 27, 2014, at 13:52 , Punit Dambiwal <hypunit at gmail.com> wrote:
>
> > Hi Itamar,
> >
> > It's the same as i used and discussed in last reply...create the VM with
> 1GB virtual template and expand the disk size after deployment...but the
> problem here is disk will expand or resize...but it will not make any
> changes in the existing partition table..that means after expand disk all
> the existing partition will remain same....then you need to manual login in
> to server and make the changes with the help of fdisk and lvm commands..
> >
> > I am looking for the way we can resize the disk...and at the same time
> when the disk will expand...it should be resize the partition table...
> >
> > Is the cloud-init...custom script can do this or not ??
>
> needs to be a custom script specific to the particular guest OS, I suppose.
> something like "lvresize --resizefs …"
> Maybe some rescan of partitions (if the missing piece is indeed the
> missing qemu-ga notification) - then just force it with fdisk
>
> Thanks,
> michal
>
> >
> > Thanks,
> > Punit
> >
> >
> > On Wed, Aug 27, 2014 at 6:11 PM, Itamar Heim <iheim at redhat.com> wrote:
> > On 08/27/2014 12:47 PM, Punit Dambiwal wrote:
> > Hi Itamar,
> >
> > To edit the disk size are you referring this "Another way i got is
> > create the VM with 1GB virtual template and expand the disk size after
> > deployment...but the problem here is disk will expand...but it will not
> > done any changes in the existing partition table..that means after
> > expand disk you need to manual login in to server and make the changes
> > with the help of fdisk and lvm commands..."
> >
> > Or it's different then the upper one...please let me know how to perform
> > this...if any screen shot you can provide for better understanding..
> >
> > http://www.ovirt.org/Features/Online_Virtual_Drive_Resize
> > adding derez for follow up questions
> >
> >
> > Thanks,
> > Punit
> >
> >
> > On Wed, Aug 27, 2014 at 5:15 PM, Itamar Heim <iheim at redhat.com
> > <mailto:iheim at redhat.com>> wrote:
> >
> > On 08/27/2014 12:08 PM, Punit Dambiwal wrote:
> >
> > Hi Itamar,
> >
> > Thanks for the update....Yes.. i want to create different size
> > VM with
> > the same OS template...
> >
> > ------------
> > 3. we support "disk resize" since 3.4 (iirc), which you can do
> > post VM
> > provisioning.
> >
> > considering #3, then #1 should be easy to support as well these
> > days.
> > please open an RFE.
> > ------------
> >
> > Could you please more elaborate point number 3...how to use
> > it..i will
> > go with this one ...
> >
> >
> > iirc, you just need to edit the disk size when vm is down or up (for
> > up, only for specific disk interfaces, virtio-blk, not ide, iirc)
> >
> > Thanks,
> > Punit
> >
> >
> > On Wed, Aug 27, 2014 at 4:37 PM, Itamar Heim <iheim at redhat.com
> > <mailto:iheim at redhat.com>
> > <mailto:iheim at redhat.com <mailto:iheim at redhat.com>>> wrote:
> >
> > On 08/27/2014 04:18 AM, Punit Dambiwal wrote:
> >
> > Hi Michal,
> >
> > I want to deploy the VM with the template but the
> > problem is in
> > ovirt
> > when you deploy the VM by template it copy the whole
> > image(even
> > thin or
> > thick disk)...like if i have 40GB virtual size (actual
> > size 1GB)
> > disk....it will copy the whole 40GB to provision the
> > virtual
> > machine....so if i want to deploy 10 VM simultaneous
> > then it
> > will copy
> > 4TB data and take long time to provision....
> >
> > I want the way i can make the template with small
> > size....and once i
> > choose to create the virtual machine with 40GB...the VM
> > deploy
> > with the
> > small template on the 40GB disk... is it possible with
> > ovirt.. ??
> >
> >
> > so you want to provision a VM with a different disk size
> > than template.
> > good point. some thoughts:
> > 1. for thinly provisioned (qcow2) - its COW, hence the same
> > size.
> > 2. for clone - actually, no reason shouldn't be supported
> > easily.
> > 3. we support "disk resize" since 3.4 (iirc), which you can
> > do post
> > VM provisioning.
> >
> > considering #3, then #1 should be easy to support as well
> these
> > days. please open an RFE.
> >
> >
> > Thanks,
> > Punit
> >
> >
> > On Tue, Aug 26, 2014 at 9:01 PM, Michal Skrivanek
> > <michal.skrivanek at redhat.com
> > <mailto:michal.skrivanek at redhat.com>
> > <mailto:michal.skrivanek at __redhat.com
> > <mailto:michal.skrivanek at redhat.com>>
> > <mailto:michal.skrivanek@
> > <mailto:michal.skrivanek@>__red__hat.com <http://redhat.com>
> >
> >
> > <mailto:michal.skrivanek at __redhat.com
> > <mailto:michal.skrivanek at redhat.com>>>> wrote:
> >
> >
> > On Aug 26, 2014, at 12:01 , Punit Dambiwal
> > <hypunit at gmail.com <mailto:hypunit at gmail.com>
> > <mailto:hypunit at gmail.com <mailto:hypunit at gmail.com>>
> > <mailto:hypunit at gmail.com
> > <mailto:hypunit at gmail.com> <mailto:hypunit at gmail.com
> > <mailto:hypunit at gmail.com>>>> wrote:
> >
> > > Hi Michal,
> > >
> > > 2. I find disk size can not modify at the time
> > of VM
> > provisioning,is there any way to modify the VM
> > disk size ??
> > >
> > > well, not really, AFAIK.
> > > create another disk, move your data, remove the
> > original Or
> > create a bigger thin provisioned disk at the
> > beginning...
> > >
> > > I didn't understand the mean...i can create the
> > another
> > disk...it's ok...but how to move the data from the
> > existing
> > disk to
> > new disk at the time of the VM deployment... ?? is
> > there
> > any way to
> > move the data.. ??
> > Hi,
> >
> > You would have to do that inside the guest…the
> > same way as
> > you would
> > do it on real hardware…mount both disks, move the
> > relevant data
> > not trivial and not automated
> >
> > >
> > > Another question is there any way to mount the
> > img like
> > i will
> > create the VM with blank template with my
> > preferred disk
> > size and
> > leter on install the OS through any OS template
> > ??? i know
> > i can
> > install the OS through CD-ISO but i don't want the
> > manual
> > installation…
> >
> > so you want to have a preinstalled OS…so how did
> > you want
> > to use it?
> > I probably don't understand what are you trying to
> > achieve.
> > Anything else than having a Template with OS and
> > you deploy
> > VMs from
> > that….you need to change disk sizes for each such
> > VM? Could
> > it be
> > done by adding an additional disk?
> >
> > Thanks,
> > michal
> >
> > >
> > > Thanks,
> > > Punit
> > >
> > >
> > > On Tue, Aug 26, 2014 at 5:51 PM, Michal
> Skrivanek
> > <michal.skrivanek at redhat.com
> > <mailto:michal.skrivanek at redhat.com>
> > <mailto:michal.skrivanek at __redhat.com
> > <mailto:michal.skrivanek at redhat.com>>
> > <mailto:michal.skrivanek@
> > <mailto:michal.skrivanek@>__red__hat.com <http://redhat.com>
> >
> >
> > <mailto:michal.skrivanek at __redhat.com
> > <mailto:michal.skrivanek at redhat.com>>>>
> >
> > wrote:
> > >
> > > On Aug 26, 2014, at 05:26 , Punit Dambiwal
> > <hypunit at gmail.com <mailto:hypunit at gmail.com>
> > <mailto:hypunit at gmail.com <mailto:hypunit at gmail.com>>
> > <mailto:hypunit at gmail.com
> > <mailto:hypunit at gmail.com> <mailto:hypunit at gmail.com
> > <mailto:hypunit at gmail.com>>>> wrote:
> > >
> > > > Hi All,
> > > >
> > > > I have some questions regarding the VM
> deployment
> > through OS
> > template...
> > > >
> > > > 1. I have imported centos template from
> openstack
> > glance (the
> > actual size of the template is 16GB but used is
> > 1GB)...now my
> > question is if i deploy the new VM with this
> > template,the
> > process
> > will copy the whole 16GB or just 1 GB to create
> > the new VM ??
> > >
> > > if you deploy with thin provisioned disks it
> > should be 1GB
> > >
> > > >
> > > > 2. I find disk size can not modify at the
> > time of VM
> > provisioning,is there any way to modify the VM
> > disk size ??
> > >
> > > well, not really, AFAIK.
> > > create another disk, move your data, remove the
> > original.
> > > Or create a bigger thin provisioned disk at the
> > beginning
> > >
> > > >
> > > > Thanks,
> > > > Punit
> > > >
> > > >
> > > > On Mon, Aug 25, 2014 at 5:42 PM, Punit
> Dambiwal
> > <hypunit at gmail.com <mailto:hypunit at gmail.com>
> > <mailto:hypunit at gmail.com <mailto:hypunit at gmail.com>>
> > <mailto:hypunit at gmail.com <mailto:hypunit at gmail.com>
> >
> > <mailto:hypunit at gmail.com <mailto:hypunit at gmail.com>>>> wrote:
> > > > Hi All,
> > > >
> > > > I have some questions regarding the VM
> deployment
> > through OS
> > template...
> > > >
> > > > 1. I have imported centos template from
> openstack
> > glance (the
> > actual size of the template is 16GB but used is
> > 1GB)...now my
> > question is if i deploy the new VM with this
> > template,the
> > process
> > will copy the whole 16GB or just 1 GB to create
> > the new VM ??
> > > >
> > > > 2. I find disk size can not modify at the
> > time of VM
> > provisioning,is there any way to modify the VM
> > disk size ??
> > > >
> > > > Thanks,
> > > > Punit
> > > >
> > >
> > >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
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