Re: [libvirt-users] Creating network interfaces with specific name in LXC

On Fri, Oct 30, 2015 at 10:09:51PM +0530, Harish Vishwanath wrote: > Thanks Martin. What I would like to achieve is govern the interface name > created within the container, so that my application can take different > actions on different interfaces (such as eth0, eth1 etc.,). > > <interface> <guest dev='devicename'/> </interface> That is what you're looking for. Although I usually recommend not relying on the name, but rather using the MAC address. Also <target dev='othername'/> says how the device will be named on the host. Libvirt's lxc driver seems to create interfaces as eth0, eth1 and so on, > when there are multiple <interface /> entries in the domain xml. How can I > request for a particular interface name? > > I saw that in some of the examples in > https://libvirt.org/formatdomain.html, > <source dev=" " network=" "> is specified. I tried setting the "dev" > attribute of source tag, but it doesn't look like that is being parsed and > stored either. > > > Regards, > Harish > > On Fri, Oct 30, 2015 at 8:32 PM, Martin Kletzander <mkletzan(a)redhat.com&gt; > wrote: > > On Fri, Oct 30, 2015 at 08:16:33PM +0530, Harish Vishwanath wrote: >> >> Hello >>> >>> I am trying to create interfaces within an LXC container with specific >>> name. I am using the following XML: >>> >>> <interface type='network' name='blah'> >>> <source network='dpbr_n_0'/> >>> </interface> >>> >>> >>> That name='' is not parsed, it won't get saved, it doesn't mean >> anything to libvirt. This particular configuration doesn't say much, >> because type=network means all the settings will get set from the >> network dpbr_n_0. See https://libvirt.org/formatdomain.html for all >> the things you can configure in <interface/> and what does each option >> mean. >> >> This doesn't seem to work; it always ends up creating interface with name >> >>> as "eth0". >>> >>> I found some examples here: >>> >>> >>> http://libvirt.org/guide/html/Application_Development_Guide-Network_Inter... >>> >>> That uses interface type as "ethernet" and specifies name also, If I do >>> that, I get back an error while starting the container as "Unsupported >>> network type ethernet". >>> >>> Appreciate your help. >>> >>> Regards, >>> Harish >>> >>> >> _______________________________________________ >> >>> libvirt-users mailing list >>> libvirt-users(a)redhat.com >>> https://www.redhat.com/mailman/listinfo/libvirt-users >>> >>> >>