bernays

/*Problem: Integration into 3rd party API requires IP whitelisting. Servers are dynamically started and stopped.

Solution: assign predefined EIPs to EC2 instances as the Auto Scaling group size increases
Limitations: Need to predefine and preallocate all IP addresses
Other possible solutions:
  1) Proxy all requests through single NAT instance
    i. limitation: single point of failure
    ii. need similar solution to make sure NAT is highly available
  2) Remove whitelisting requirement
    i. no...just no ... not gonna happen