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Re: [libvirt-users] libvirt-lxc: good for production?



thank you Michal, appreciate your input, I'll invest some more time and set up a full test system mirroring our prod and see how it works out. I'm gonna start another thread on images/templates because that's another area where I've found a lack of information and could do with some input. thanks.

Spike

On Mon, Apr 3, 2017 at 2:11 AM Michal Privoznik <mprivozn redhat com> wrote:
On 04/03/2017 04:02 AM, Spike wrote:
> Dear all,
>
> I'm a happy lxc (lxd) user with a need to add a bunch of KVM images to the
> mix. More importantly I need to have some simple frontend to give users the
> ability to quickly run some VMs for testing.
>
> Researching the topic brought me to virt-manager and from there libvirt.
> I've had however a hard time to answer a few questions that I hope this
> list can help me with:
>
> 1) is the libvirt-lxc driver actively developed? there's been a lot of
> upgrades to lxc and there seems to be relatively little activity on the lxc
> driver

Yes it is. I don't know what are the features that lxc-tools introduced
and looking into their news files it seems like they are mostly fixing
bugs rather than introducing new functionality. Moreover, lxc-tools come
with some infrastructure (e.g. prepared images for containers). Libvirt
doesn't have those.

> 2) is libvirt-lxc to be used in production to begin with? every single
> guide I found about libvirt pretty much points to KVM usage, with simple
> /bin/sh examples with lxc.  Furthermore stuff like virt-install seems to be
> exclusively catered to full os/KVM images creation, with no obvious way to
> create a container image.

That's because KVM (well, qemu) is our most intense developed driver.
But LXC gets some attention too. I think it is production ready and if
you give it some testing you'll find the same.

Michal

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