[libvirt-users] [Bug 1325687] network type="ethernet" not supported with LXC

[Cole Robinson]

On 04/11/2016 09:24 AM, abhishek jain wrote:
> Hi Team
> 
> I'm trying to launch LXC VM with libvirt 1.2.12 having commit
> *22cff52a2b8e06c913b1f97767e5d3**90fb17fc3b *with below XML configuration..
> 
> <domain type="lxc">
>   <uuid>64c48da2-e318-4085-8b88-c980aab4de34</uuid>
>   <name>test</name>
>   <memory>524288</memory>
>   <vcpu>1</vcpu>
>   <os>
>     <type machine="virt">exe</type>
>     <cmdline>root=/dev/ram0 rw  console=ttyAMA0 rootwait earlyprintk</cmdline>
>     <init>/bin/sh</init>
>   </os>
>   <clock offset="utc"/>
>   <devices>
>     <file/>
>     <interface type='ethernet'>
>       <mac address='02:74:ff:9d:52:f5'/>
>       <script path=''/>
>       <target dev='tap74f2-f5'/>
>     </interface>
>     <console type="pty"/>
>   </devices>
> </domain>
> 
> I'm getting following errors while launching LXC VM using above XML file..
> 
> virsh -c lxc: define lxc.xml
> virsh -c lxc: start
> test                                                                                                        
> 
> error: Failed to start domain test
> error: internal error: guest failed to start: /usr/lib/libvirt/libvirt_lxc:
> option '--veth' requires an argument
> syntax: /usr/lib/libvirt/libvirt_lxc [OPTIONS]
> Options
>   -b, --background
>   -n NAME, --name NAME
>   -c FD, --console FD
>   -v VETH, --veth VETH
>   -s FD, --handshakefd FD
>   -S NAME, --security NAME
>   -h, --help
> Unknown failure in libvirt_lxc startup
> 
> 
> Please help me regarding this.


Hmm indeed, it seems like that commit inadvertently dropped the error
condition for type=ethernet... from reading the original thread, I think the
reporter was only testing with qemu.

It's probably not much work to wire up type=ethernet for LXC, but someone else
will need to do it. I'll send a patch to make the error explicit again. Please
reopen your RFC bug

Thanks,
Cole

> 
> 
> --Thanks
> Abhishek Jain
> 
> 
> 
> On Mon, Apr 11, 2016 at 3:35 AM, <bugzilla at redhat.com
> <mailto:bugzilla at redhat.com>> wrote:
> 
>     https://bugzilla.redhat.com/show_bug.cgi?id=1325687
> 
>     Cole Robinson <crobinso at redhat.com <mailto:crobinso at redhat.com>> changed:
> 
>                What    |Removed                     |Added
>     ----------------------------------------------------------------------------
>                  Status|NEW                         |CLOSED
>                      CC|                            |crobinso at redhat.com
>     <mailto:crobinso at redhat.com>
>              Resolution|---                         |CURRENTRELEASE
>             Last Closed|                            |2016-04-10 18:05:06
> 
> 
> 
>     --- Comment #1 from Cole Robinson <crobinso at redhat.com
>     <mailto:crobinso at redhat.com>> ---
>     ethernet support was actually enabled for lxc via this commit:
> 
>     commit 22cff52a2b8e06c913b1f97767e5d390fb17fc3b
>     Author: Anirban Chakraborty <abchak at juniper.net <mailto:abchak at juniper.net>>
>     Date:   Tue Nov 18 15:55:48 2014 -0800
> 
>         network: Add network bandwidth support to ethernet interfaces
> 
> 
>     Which looks like libvirt v1.2.10 or v1.2.11
> 
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>