[GTALUG] Setting up a VM host

Alvin Starr alvin at netvel.net
Wed Aug 31 08:48:26 EDT 2016


On 08/29/2016 04:13 PM, Lennart Sorensen via talk wrote:

> On Mon, Aug 29, 2016 at 04:10:51PM -0400, Alex Volkov via talk wrote:
>> I don't think this was mentioned before, but KVM/libvirt with shell
>> interface, besides gui inteface (virt-manager) there's a shell interface
>> virsh, which let you configure VM using shells scripts.
>>
>> libvirt, is just a bunch of processes with, and I'm sorry, xml config files
>> located in /etc/libvirt. You can have any number of virtualization
>> technologies (LXC, KVM) and any number user backends -- (virt-manager,
>> virsh); managing all of that requires copying configuration and image files
>> around -- it doesn't get any simpler than that; unlike QEMU, you don't need
>> to pass long line of arguments to start up the machine and you get such
>> niceties as autostarting VMs on machine boot, not to mention that the whole
>> thing is enterpris-y and supported by redhat.
>>
>> Actually virt-manager works pretty well -- libvirt likes ssh, and uses
>> client/server architecture, so when connecting to a remote host you don't
>> have to  tunnel it through ssh, just have it on a client machine and give
>> it a correct url.
> My first (and last) encounter with libvirt was that I wanted to use kvm
> with smp, and at the time it didn't know about the smp option, so you
> simply couldn't do that.  So given the use of both xml, and the inability
> of keeping up with kvm/qemu options, I determined it was hopeless and
> went with doing it myself which works great.
>

That has somewhat changed now and libvirt is very full featured.
But I understand your feelings.
I once tried to use KVM and found it a bug farm so moved back to Xen and 
am still there.

-- 
Alvin Starr                   ||   voice: (905)513-7688
Netvel Inc.                   ||   Cell:  (416)806-0133
alvin at netvel.net              ||

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