sudo: unable to resolve host.. when creating ubuntu-cloud container

[rintcius]

I am getting messages like this with every "sudo" I do in a fresh container:

"sudo: unable to resolve host test.lxc"

It happens with every container I create on 12.10 with 12.10 container and ubuntu-cloud template.

Reproduction:

lxc-create -t ubuntu-cloud -n test.lxc -- --auth-key
$HOME/.ssh/id_rsa.pub --userdata /root/my-userdata

with a simple userdata file like this:

#!/bin/sh
ifconfig eth0 > /ifconfig-eth0

See discussion details on this thread: http://sourceforge.net/mailarchive/message.php?msg_id=30105268

Note that there is an easy workaround by adding the container name to /etc/hosts yourself.

====
$ apt-cache policy lxc
lxc:
  Installed: 0.8.0~rc1-4ubuntu38
  Candidate: 0.8.0~rc1-4ubuntu38
$ lsb_release -rd
Description: Ubuntu 12.10
Release: 12.10

[Serge Hallyn (serge-hallyn)]

I don't see this. I wonder why you were getting '.lxc' as your domain name. I can't reproduce that right now.

Regardless, note that on a modern saucy system this should be solved automatically when you set LXC_DOMAIN=lxc in /etc/default/lxc-net.