Static IP using Elastic Beanstalk
I need the static IP to allow access to a firewalled network not on the AWS network.
Is it possible to get a static IP for a load balanced app using Elastic Beanstalk? I'm following the AWS docs regarding using Route 53 to host my app with a domain name, but from what I've read, this does not ensure a static IP because it is essentially using a CNAME allowing the IP behind the scenes to change. Is that the right understanding? Is it possible at all?
Answer
Deploy your beanstalk environment in VPC, and with the right configuration, a static IP for outbound traffic is easy.
In this setup, your instances all relay their outbound traffic through a single machine, which you can assign an elastic IP address to. All of the inside-originated, Internet-bound traffic from all of the instances behind it will appear, from the other network, to bw using that single elastic IP.
The RDS portion of the following may be irrelevant to your needs but the principles are all the same.
http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/AWSHowTo-vpc-rds.html