Multiple Public IP using aws

[levivm]

Actually, I have two services, api.mysite.com and dev.mysite.com.
I added an extra private ip along its public elastic ip, so my aws private ip's looks like:

private IP 1 - public IP 1
private IP 2 - public IP 2

In my dns server, dev.mysite maps to public IP 1 and my api.mysite.com maps to public IP 2 , but api.mysite.com is unreachable.

Inspecting my docker machine config file, there is only one private and public IP
"IPAddress": "private IP 1",
"PrivateIPAddress": "public IP 1",

So, my question is, what is the best way to configure subdomains along docker-machine using aws ?
Is there a way to have a multiple IP using aws driver ?