Rationale: in development the ip address of the local machine is not
easily predictible because when docker creates virtual networks it
assigns the ip prefixes/addres dynamically by default (and i do not want
to configure static addresses because of it may interefere and cause
nasty side-effects if using docker for other projects on the same
machine)

Now in development we allow admin actions from 0.0.0.0/0 (which means
all ip addresses)

Note: I used the IPy package (whose purpose is to handle ranges of
IP addresses)