Re: lxc linux image flavour
Note that I am a big OpenVZ. I also like Linux-VServer a lot and use
both for years now. Both projects have contributed to LXC a lot and I
want to hereby thank all folks involved in the process of pushing that
stuff into mainline!
However, I, as many other companies/folks, have a problem since there
are
- no recent patches for OpenVZ available (thus no kernels in Debian)
- no official announcements on future directions from the OpenVZ folks
made
I am therefore looking for a sustainable and long-term predictable
lightweight virtualization/isolation solution to replace OpenVZ. LXC, we
think, is the way to go forward. Stuff in mainline is stuff in mainline
is stuff in mainline ... no argument possible against that.
Marco> I expect that it will be released after the first beta of RHEL
Marco> 6
Yes, I have been told that too by OpenVZ's main developer, Kir
Kolyshkin. However, it is fact that (as of now) RHEL6 is scheduled for
the first half of 2010. A year ago, it was scheduled for summer 2009 and
so on. Nobody really knows when it will be released and thus when
Parallels will release another OpenVZ patch for some recent kernel.
It just happens that Debian can not go forward with any plans with
regards to OpenVZ in squeeze since they do not know themselves. LXC is
available right now and in mainline, so that is another story
altogether.
Marco> It's not just that, AFAIK there is no match for many of the
Marco> user_beancounters features (especially the accounting part)
True that, here is why I think that is not critical at this point:
- most folks run Linux-VServer, OpenVZ, LXC etc. on boxes they own plus
they control themselves so that is not really an issue
- those environments in need for limits/beancounters (disk quota etc.)
may probably have to wait another six months or so until it will be
available in LXC. Till then it is quite possible to run on 2.6.26
with OpenVZ and then migrate things to LXC. We have excellent
migration scripts already [0]
Marco> Lack of the equivalent of "vzctl enter" is a critical issue for
Marco> my applications.
I do not remember the exact command now but from what I remember
hearing/reading last week, that feature will be available shortly.
[0] http://sysadmin-cookbook.rot13.org/#lxc
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