setup script network interface misnaming in lxc container
on CentOS 7 in lxc container scripts take wrong network interface name eth0@if21 instead of plain eth0, see below output in Alpine lxc guest shell, and ip address setup fails
ffcrm:~$ ip addr
1: lo: mtu 65536 qdisc noqueue state
UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
20: eth0@if21: mtu 1500
qdisc pfifo_fast state UP qlen 1000
link/ether fe:a6:2b:33:cd:59 brd ff:ff:ff:ff:ff:ff
inet 10.74.58.3/24 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::fca6:2bff:fe33:cd59/64 scope link
valid_lft forever preferred_lft forever
(from redmine: issue id 5074, created on 2016-02-05)