This function allows you to get the ip address of the current machine. I
found this useful because I wanted to add my personal or production
machine to a specific RDS security group. The call is quite simple and
connects to amazon's checkip website. The class is threadsafe and I have
included specs with it as well. I have also added the
Fog::AWS::RDS::SecurityGroup#authorize_me function to make adding the
current machine to a given RDS security group very easy.
Server#modify and #create_read_replica allow
options to be passed as symbols or strings.
This allows the same hash of attributes to be used
for creating & modifying servers.
For example, the following lines are equivalent:
server.modify(true, :allocated_storage => 10)
server.modify(true, 'AllocatedStorage' => 10)
