Configure Application Load Balancer in aws?

Introduction :

In this tutorial we are going to configure Application Load Balancer with the following task.

Application Load Blancer distributes incoming application traffic across multiple targates such as ec2 instance in multiple availability zone.it support HTTP and HTTPS protocol.

Task 1 : Create 2 EC2 instance with different availability zone.
Task 2 : Configure Application Load blancer

 

Task 1 : Create 2 EC2 instance with different availability zone.

Step 1) Login to the AWS Console

Step 2) Switch to the EC2 section

Step 3) Create 2 EC2 instance in different availability zone

Step 1) Configure Load Balancer 

 

Task 2 : Configure Application Load blancer

1) On the navigation pane, under LOAD BALANCING, choose Load Balancers and Select "Application Load blancer"

2) To configure your load balancer, provide a name, select a scheme, and select a network.

Following are Default Configuration:-

• Name    : MyLoadBlancer

• Scheme  : internet-facing

• ip type   : ipv4

 

An Internet-facing load balancer routes requests from clients over the Internet to targets.
An internal load balancer routes requests from clients to targets using private IP addresses.

 

3) Add Listener , A listener is a process that checks for connection requests, using the protocol and port that you configured.

In my case I am using only HTTP protocol.

• If you have an SSL than Add HTTP and HTTPS protocol

• If you don't have an SSL than Add HTTP protocol only 

 

4) Availability Zones

Specify the Availability Zones to enable for your load balancer. The load balancer routes traffic to the targets in these Availability Zones only. You can specify only one subnet per Availability Zone. You must specify subnets from at least two Availability Zones to increase the availability of your load balancer.

• In my case I am selecting all AZ.

 

5) Add-on services

Additional AWS services can be integrated with this load balancer at launch when you enable them below.

• In my case I am choosing as default.

 

6) Tags 

 Apply tags to your load balancer to help organize and identify them.

 

Step 2) Configure Security Settings 

Improve your load balancer’s security. Your load balancer is not using any secure listener.

• If you are not using HTTPS protocol , and click to next

 

Step 3) Configure Security Groups 

Create a new security group or Select an existing security group

 

Step 4) Configure Routing 

1) Target group 

Your load balancer routes requests to the targets in this target group using the protocol and port that you specify here.

 

2) Health checks 

3) Advanced health check settings

4) Click to next button  :Register Targets

Step 5) Register Targets

Register targets with your target group. If you register a target in an enabled Availability Zone, the load balancer starts routing requests to the targets.

Select one or more instances than click on "Add to register" button 

 

1) Click to next button  :Review

Step 6) Review 

Please review the load balancer details before creating

Note :- Wait few minutes to be up 

 

Application Load Blancer will take few minutes for this to be Active status.

Step 7) Verify Load blancer working by following command.

Select Load Blancer --> Description --> Copy DNS Name 

• paste DNS name in web browser