2 ways to set up static IP addresses for ALB
One highly requested feature of AWS’s Application Load Balancer is the ability to assign static IP addresses. Unfortunately, ALBs do not support this feature and it is unlikely they will in the near future. Today, the only way to achieve static IP addresses for your application behind an ALB is to add another layer in between the client and your ALB which does have a static IP address, and then forward requests to your ALB.