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== Virtualization ==
== Virtualization ==
In this section, we cover discussion on the @et-mgmnt-tools-list, @fedora-xen-list, @libvirt-list and @ovirt-devel-list of Fedora virtualization technologies.
In this section, we cover discussion of Fedora virtualization technologies on the
 
@fedora-virt list.
Contributing Writer: [[DaleBewley | Dale Bewley]]
 
=== Enterprise Management Tools List ===
This section contains the discussion happening on the
[http://www.redhat.com/mailman/listinfo/et-mgmt-tools et-mgmt-tools list]
 
==== Help Perfect Cobbler SELinux Policy ====
[[DominickGrift|Dominick Grift]] posted[1]
"instructions on how to install a bare SELinux policy for {{package|cobbler}}. Feedback in the form of AVC denials would be appreciated so that we can perfect this bare policy."
 
[[MichaelDeHaan|Michael DeHaan]] asked[2]
"Would someone like to take a shot at refining this policy some or at least
running Cobbler with that for a while (in permissive mode) to identify what
else needs to be allowed?" and added the policy to the cobbler wiki[3].
 
[1] http://www.redhat.com/archives/et-mgmt-tools/2009-January/msg00003.html
 
[2] http://www.redhat.com/archives/et-mgmt-tools/2009-January/msg00004.html


[3] http://fedorahosted.org/cobbler/wiki/SeLinuxPolicy
Contributing Writer: [[User:Dale | Dale Bewley]]


=== Fedora Virtualization List ===
=== Fedora Virtualization List ===
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[http://www.redhat.com/mailman/listinfo/fedora-virt fedora-virt list].
[http://www.redhat.com/mailman/listinfo/fedora-virt fedora-virt list].


==== New Fedora Virtualization List ====
==== Virt Status Report ====
On @fedora-xen, [[DanielVeillard|Daniel Veillard]] announced[1] the creation of the new @fedora-virt list.
[[JustinForbes|Justin Forbes]]
 
posted<ref>http://www.redhat.com/archives/fedora-virt/2009-December/msg00056.html</ref> a Fedora virtualization status report.  
"As the initiator for [the fedora-xen] list, I must admit I made a mistake
Justin pointed out F13 bugs<ref>http://fedoraproject.org/wiki/Virtualization_bugs</ref> now include Important and Pony classifications in addition to Blocker and Target.
3 years ago, I should have picked a list name agnostic from the
hypervisor name. With the current state of Xen in Fedora recent
releases it really make sense to try to correct that mistake ...
it's never too late ! So
http://www.redhat.com/mailman/listinfo/fedora-virt
is born, I don't want to mass-subscribe people, especially as
I think the current list should survive with its Xen centric
focus. You can subscribe directly to the new URL above.
 
The topic is everything concerning Fedora and virtualization
including Xen.
 
I think the [fedora-xen] list would be a good place for people
still using Fedora <= 8 with Xen, but it's just a suggestion :-)"
 
And on @et-mgt-tools [[RichardJones|Richard W.M. Jones]] suggested[2] "we
should fold et-mgmt-tools into fedora-virt too."
 
[1] http://www.redhat.com/archives/fedora-xen/2009-January/msg00014.html
 
[2] http://www.redhat.com/archives/et-mgmt-tools/2009-January/msg00010.html
 
=== Fedora Xen List ===
This section contains the discussion happening on the
[http://www.redhat.com/mailman/listinfo/fedora-xen fedora-xen list].
 
==== Xen 3.3.1 in Rawhide ====
[[PasiKärkkäinen|Pasi Kärkkäinen]] pointed[1] out the release of
{{package|xen}} 3.3.1. A few days later it was made available[2] in
[[Releases/Rawhide|Rawhide]].
 
[1] http://www.redhat.com/archives/fedora-xen/2009-January/msg00008.html
 
[2] http://koji.fedoraproject.org/koji/packageinfo?packageID=7
 
==== Manage Shutdowns of KVM Xenner Guests ====
[[FelixSchwarz|Felix Schwarz]] used[1] {{package|kvm}} and {{package|xenner}}
to migrate a Fedora 8 Xen dom0 host to Fedora 10.
 
"So far this was easier than expected. :-) Of course there are some smaller issues (Xenner does not work with SElinux, NetworkManager does not support bridges) but now there is only one real issue left:
 
How can I automatically shut down all running VMs when my host machine goes down? All VMs do poweroff if I press the 'shutdown' button in virt-manager. So I guess it's just a matter of sending this signal to all running VMs and waiting a bit."
 
[1] http://www.redhat.com/archives/fedora-xen/2009-January/msg00001.html
 
==== Test Dom0 Kernel For Fedora 10 ====
[[MichaelYoung|Michael Young]] has[1] "succeeded in getting a fedora based {{package|kernel}} to build with Dom0 patches added." ... "If anyone wants to inspect it, the source rpm generated is at http://compsoc.dur.ac.uk/~may/xen/kernel-2.6.28-0.106.rc6.fc10.src.rpm It is completely untested beyond the fact that it compiles for me, so I have no idea if a kernel built from it will actually boot."
 
See also [2][3].
 
[1] http://www.redhat.com/archives/fedora-xen/2008-December/msg00028.html
 
[2] http://wiki.xensource.com/xenwiki/XenParavirtOps


[3] http://fedoraproject.org/wiki/Features/XenPvopsDom0
<references />


=== Libvirt List ===
==== RHEL and Fedora Virtualization Feature Parity ====
This section contains the discussion happening on the
Robert Day wondered how the virtualization features<ref>http://www.redhat.com/virtualization/rhev/</ref> of Red Hat Enterprise Linux 5.4
[http://www.redhat.com/mailman/listinfo/libvir-list libvir-list].
compared to Fedora 12.


==== Interface Bandwidth Controls ====
[[DanielBerrange|Daniel Berrange]]  
[[MaxZhen|Max Zhen]] described[1] a goal of enabling {{package|libvirt}} to configure bandwidth rate limits for the network interface of virtual machines, and asked for comments on implementation ideas.
explained<ref>http://www.redhat.com/archives/fedora-virt/2009-December/msg00040.html</ref>
"The KVM based virtualization in RHEL-5.4 is not nearly so far behind
Fedora as you might think. The {{package|libvirt}} mgmt stack in RHEL-5.4 was
rebased to be near parity with [[Releases/11|Fedora 11]], and KVM in RHEL-5.4 is
also pretty close to that using what's best described as a hybrid of
kvm-83 and kvm-84."


[1] http://www.redhat.com/archives/libvir-list/2008-December/msg00644.html
<references />


==== RHEL 5 Support ====
[[MarkusArmbruster|Markus Armbruster]] posted[1] a
"patch series attempts to make {{package|libvirt}} just work on RHEL-5.  Right
now it doesn't, mostly because <code>libvirt</code> relies on version number checks
in a couple of places, and RHEL-5's version numbers aren't the whole
truth due to various backports of later stuff." Adding
"I'm not proposing this for immediate commit, as I'm still testing.
But I'd appreciate review: is this the right way to do it?"


[1] http://www.redhat.com/archives/libvir-list/2008-December/msg00629.html
====  ====
<references />


==== Choice of Private Network Range ====
==== ====
[[PeterAnvin|Peter Anvin]] was[1] "kind of wondering why {{package|libvirt}} defaults to
<references />
192.168.122.0/24". Refering to RFCs [http://www.faqs.org/rfcs/rfc2544.html 2544] and [http://www.faqs.org/rfcs/rfc3330.html 3330]. Peter suggested the following alternative ranges:
 
* 192.0.2.0/24 - reserved as "test and example network"
* 198.18.0.0/15 - reserved as "benchmark test network"
 
[1] http://www.redhat.com/archives/libvir-list/2008-December/msg00545.html
 
==== Guest-Safe libvirtd Restarts ====
A restart of <code>libvirtd</code> will necessarily also restart <code>KVM</code> virtual machine guests.
[[GuidoGünther|Guido Günther]] sought[1] to rectify this with a submission of several patches.
 
[1] http://www.redhat.com/archives/libvir-list/2008-December/msg00346.html
 
[2] http://fedoraproject.org/wiki/FWN/Issue146#Maintaining_VM_State_While_Restarting_libvirtd_Needed
 
=== oVirt Devel List ===
This section contains the discussion happening on the
[http://www.redhat.com/mailman/listinfo/ovirt-devel ovirt-devel list].

Latest revision as of 18:09, 18 December 2009



Virtualization

In this section, we cover discussion of Fedora virtualization technologies on the @fedora-virt list.

Contributing Writer: Dale Bewley

Fedora Virtualization List

This section contains the discussion happening on the fedora-virt list.

Virt Status Report

Justin Forbes posted[1] a Fedora virtualization status report. Justin pointed out F13 bugs[2] now include Important and Pony classifications in addition to Blocker and Target.

RHEL and Fedora Virtualization Feature Parity

Robert Day wondered how the virtualization features[1] of Red Hat Enterprise Linux 5.4 compared to Fedora 12.

Daniel Berrange explained[2] "The KVM based virtualization in RHEL-5.4 is not nearly so far behind Fedora as you might think. The Package-x-generic-16.pnglibvirt mgmt stack in RHEL-5.4 was rebased to be near parity with Fedora 11, and KVM in RHEL-5.4 is also pretty close to that using what's best described as a hybrid of kvm-83 and kvm-84."