Redirection on Elastic Load Balance based routing

Question

I need help in this scenario

• My an ec2 instance is receiving requests, I don't want on client end to change server path based on few requests (especially on chat)
• My first ec2 instance bypass requests based on few path patterns to my other created instance. (In other words, I want to redirect traffic from first to second)

Is there any way to fulfill above scenario.

Answer 1

You can use AWS CloudFront as a proxy for your use case where you can plugin the two EC2 instances behind CloudFront as Origins and Add behavior rules (Path rules) to switch traffic to one or the other.

Your client will send requests only to the CloudFront URL(Or DNS mapped through Route53) and won't be knowing about the EC2 instances behind. This approach will work, if your EC2 instances are publicly accessible but will be cost effective and reduce the load on your services, if you happen to cache content.

Alternative approach is to use an Application Load Balancer with path based routing configuration.

Following tutorial will guide you through the steps.

• Tutorial: Use Path-Based Routing with Your Application Load Balancer