Cloudinit subnet error if a cidr (/24) is used instead of a subnet mask (255.255.255.0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.5/ipaddress.py", line 119, in ip_interface
address)
ValueError: '192.168.1.1//29' does not appear to be an IPv4 or IPv6 interface