Elastic Load Balancing both internal and internet-facing

Question

We are trying to use Elastic Load Balancing in AWS with auto-scaling so we can scale in and out as needed.

Our application consists of several small

Answer 1

The standard AWS solution would be to have an extra internal ELB for this. Looks like @DaryL has an interesting workaround, but it could fail for 5 minutes if the DNS is not updated. Also there is no way to have a separate security group for the internal IPs since they share the ENI and security of the external IP of the ELB.