VM Context failed to start IPV6 addr on CentOS 7

[jfontan]

By Nicolas Belan from http://dev.opennebula.org/issues/3160

I have installed a CentOS 7 from scratch.
I installed one-context RPM for 4.8.0.

I rebooted and 'cat' eth0 configuration:

[root@localhost network-scripts]# cat ifcfg-eth0
DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
TYPE=Ethernet
NETMASK=255.255.255.128
IPADDR=192.168.0.135
GATEWAY=192.168.0.254

IPV6INIT=yes
IPV6ADDR=2a00:afee:0:f:400:b9ff:fe1e:5c87
IPV6_DEFAULTGW=2a00:afee:0:f::ffff

The IPv6 addr is not set correctly on reboot. Only L-local IP is set (fe80::)

To fix that, I added NM_CONTROLLED=no in 00-network:gen_network_configuration()

ONBOOT=yes
NM_CONTROLLED=no
TYPE=Ethernet

Now, IPv6 is correctly set on reboot.