start a unit test for openstack provider
Using rspec-fire for mocks
spec for provision_public_ip_address for nova
OpenStack provider has networks? helper
openstack - get subnets; specify pool_name when provisioning IP
[openstack] list of unallocated IPs for a network pool
[openstack] for neutron, prompt for a subnet
[openstack] Asks for an available IP in subnet & stores it
using subnet_id rather than bosh's net_id
Simple next_available_ip_in_subnet algorithm

Assumes that OpenStack is tracking available IP ranges with
allocation_pools.
Automatically select next available IP from subnet
remove 'Micro BOSH' reference from this common library
whitespace [skip ci]
Not all unused IPs are necessarily available

An IP might be pre-allocated to something else but not yet being used.
So allow user to enter a different IP.
method specifically returns the floating IPs
[openstack] Default offered IP is not already assigned to a server