[libvirt-users] libvirt-lxc: good for production?
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 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. thanks for any input, even just docs I missed that explain the avove would be most helpful. Spike
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
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:
Dear all,
I'm a happy lxc (lxd) user with a need to add a bunch of KVM images to
mix. More importantly I need to have some simple frontend to give users
On 04/03/2017 04:02 AM, Spike wrote: the 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
participants (2)
-
Michal Privoznik -
Spike