Re: [libvirt] Dropping RHEL-6/CentOS-6 support
On Tue, 2016-02-09 at 15:24 +0000, Daniel P. Berrange wrote:
> I tend to agree with Peter when he says that people stick with
older
> versions of software because they have a working setup and don't want
> to risk it breaking, and replacing vendor-provided system components
> with manually compiled upstream releases kinda goes in the opposite
> direction :) I would definitely never have risked anything like that
> in my previous life as a system administrator.
For OpenStack, users are indeed updating core bits of the base OS to
newer versions. It is also not neccessarily the users who are supplying
the newer versions. For example, a vendor supplying software that extends
RHEL, may choose to replace some bits of the core OS & support them.
For example, Red Hat actually do this with their OpenStack product, where
we have shipped newer versions of qemu + libvirt than were actually
present in the base RHEL we deplkoyed openstack on. I know other OpenStack
vendors do similarly, particularly with Ubuntu LTS releases there is an
add-on cloud-archive repository providing newer versions of libvirt and
QEMU.
I was not aware this was common practice, and I stand corrected.
Still I'm left wondering what constraints could cause such a
downstream vendor, whose software apparently requires very recent
version of QEMU and libvirt in order to work, to base its product
on eg. Ubuntu 12.04 instead of 14.04...
Thank you for taking the time to engage in this discussion, it's
been quite informative :)
Cheers.
--
Andrea Bolognani
Software Engineer - Virtualization Team