[clue] VM test lab [was question, Nagios [talk]]

[Dan Kulinski]

I forgot to mention, I use kickstart to automate installation.  This makes
the instant VM a little more instant and removes those pesky questions the
installer likes to ask.

Dan
On May 21, 2012 8:36 PM, "Dan Kulinski" <daniel at kulinski.net> wrote:

> Oh them are fighting words!  :-)
>
> I use libvirt. I simply run virt-install, point it at a fedora or centos
> URL and instant VM.  With a little bit of XML editing I can create another
> image that uses that new image as a backing store.  Do this three times,
> boot the VM and edit the network persistence rules (or use qemu-nbd and
> mount images directly) and I have a test lab.  Most of this can be don in a
> GUI with virt-manager on Fedora or CentOS.
>
> I do this at work regularly to test out cluster software.  I love the
> simplicity and if I screw it all up, no harm no foul ( except when you
> cause network IP collisions but we won't talk about that).
>
> Any more questions?  I can post some handy XML files.  I highly suggest
> learning libvirt, extremely flexible (supports KVM, Zen, OpenVZ and
> VMWare).  Lots of tools built on top of it too.
>
> Dan
> On May 21, 2012 6:19 PM, "David L. Anselmi" <anselmi at anselmi.us> wrote:
>
>> Dan Kulinski wrote:
>> > Just implement it and go.  Nothing teaches like doing.  Do you have a
>> > machine at home?  Setup 3 simple VMs.  Instant test lab.
>>
>> Sounds like yak shaving to me. ;-)
>>
>> So which VM platform would you use?
>>
>> What tools to build images?  I discovered ganeti today, don't know if
>> proxmox builds images or just
>> manages VMs.
>>
>> Guess I'll have to go buy some memory too (my largest machine has 1GB).
>>
>> Thanks!
>> Dave
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