On Mon, Apr 03, 2017 at 05:52:33PM +0000, Spike wrote:
Dear all,
I'm moving my first baby steps with libvirt-lxc trying to convert over from an LXD installation and one of the hurdles is putting together an image.
All the examples I found about libvirt-lxc refer to running /bin/sh in a container, almost as if it was docker, as opposed to run a "full system" like I've been doing with lxd. Also virt-install, often referred in libvirt docs, seems to be specific/only for kvm.
Can anybody point me to any documentation to achieve the same as you'd do with lxd? would it even just work to use those images ( https://cloud-images.ubuntu.com/) with libvirt? Last but not least, is there any way to "publish" a modified image so that I could make changes to any of the above and then reuse the modified one as a base for other containers?
Libvirt LXC doesn't really care what you run inside the containedr - it is possible to use it to run a single application (docker style), or to run a full operating system. You essentially just need to populate a chroot with the operating system install you want to run. I've previously tested with a Fedora chroot: https://www.berrange.com/posts/2013/08/12/running-a-full-fedora-os-inside-a-... If you want to have layered modifications, then the best bet is probably to make use of overlayfs with your chroots. ie populate a base chroot and treat it as read-only thereafter. Then create a new directory mounted with overlayfs to add a writable layer on top. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://entangle-photo.org -o- http://search.cpan.org/~danberr/ :|