Comment 1 for bug 1438591

Seems that image based provisioning on Ubuntu isn't affected, because resolvconf is unable to update '/etc/resolf.conf':

root@node-1:~# cat /etc/resolv.conf
# re-generated by cloud-init boothook only at the first boot;
search mirantis.com
domain mirantis.com
nameserver 172.16.39.130
root@node-1:~# resolvconf -u
/etc/resolvconf/update.d/libc: Warning: /etc/resolv.conf is not a symbolic link to /run/resolvconf/resolv.conf
root@node-1:~# ls -1l /etc/resolv.conf
-rw-r--r-- 1 root root 127 Mar 31 11:54 /etc/resolv.conf

but I think this breaks 'external dns' feature (see blueprint external-dns-ntp-support)