How to create AWS Application Load Balancer

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What is an AWS Application Load Balancer?

✅ It’s a layer seven load balancer platform
✅ Supports path and host-based routing to allow the request to be routed to different application
✅ Supports HTTP/2 and WebSockets

How to create Application Load Balancer

• To create a application load balancer, go to the EC2 console https://console.aws.amazon.com/ec2/v2/home and in the left-hand menu under Load Balancing, click on Load Balancers.

1. Give your Load balancer some meaningful name e.g., my-alb-demo
2. You need to select Scheme(it can be Internet-facing(An internet-facing load balancer routes requests from clients over the internet to targets. Requires a public subnet) or Internal(An internal load balancer routes requests from clients to targets using private IP addresses))
3. IP address type(Can be IPv4 or Dualstack(Includes IPv4 and IPv6 addresses))

• Select the VPC and availability zone

• Under Listeners and routing, define the port and protocol on which the load balancer must listen. Each Application
• Load Balancer needs at least one listener to accept traffic.

• Click on the Target group. Target group defines the logical grouping of the targets.

• Click on Next at the bottom of the screen

• Click on Create target group

• Go back to the ALB console and select the target group you have just created. Click on Create load balancer at the bottom of the screen.