At EC2 Dashboard, click on Load Balancers from the left-hand menu and then click on Create Load Balancer.
In the interface of choosing a load balancer type, select Application Load Balancer and click on Create.
In the ALB creation screen:
In the Network mapping section:
In the Security groups section, select Internal-LB-SG. In the Listeners and routing section, select AppTierTargetGroup for the default action. Scroll down to the bottom and click on Create load balancer.