[Lxc-users] Determine which veth interface belongs to which container

[Serge Hallyn]

Quoting Yury Vidineev (adepty at yandex.ru):
> Looks like it isn't correlate. On host:

Uh, 5 and 6, 14 and 15, ...

> cat /sys/class/net/veth*/iflink|sort -n
> 6
> 15
> 60
> 63
> 65
> 66
> 71
> 75
> 76
> 82
> 85
> 88
> 91
> 
> In containers:
> 
> for i in $(lxc-ls); do ssh $i cat /sys/class/net/eth0/iflink; done|sort -n
> 5
> 14
> 59
> 62
> 70
> 81
> 84
> 87
> 90
> 
> 
> On Monday, July 01, 2013 10:26:44 AM Serge Hallyn wrote:
> > You can probably correlate it using /sys/class/net/$veth/iflink,
> > which should have consecutive values for link and peer.
> > 
> > Quoting Yury Vidineev (adepty at yandex.ru):
> > > Thank you for the answer! It's almost exactly what I need. But is it
> > > possible to know name of interfaces without containers restart?
> > > 
> > > On Monday, July 01, 2013 02:08:10 PM Claudio Kuenzler wrote:
> > > > > Hello
> > > > > Can anyone suggest me a way to determine which veth* interface belongs
> > > > > to
> > > > > which container?
> > > > 
> > > > You have the possibility to add the veth interface name into the lxc
> > > > config:
> > > > 
> > > > lxc.network.veth.pair = veth0-$name
> > > > 
> > > > 
> > > > Using this, you'll immediately know to which lxc container the interface
> > > > belongs.
> 
> -- 
> Sincerely,
> Yury Vidineev