Application Load balancer with AWS Lambda as target with CDK

This pattern demonstrates how to create an Application Load Balancer with AWS Lambda as target. Implemented in CDK.

Learn more about this pattern at Serverless Land Patterns: https://serverlessland.com/patterns/alb-lambda-cdk

Important: this application uses various AWS services and there are costs associated with these services after the Free Tier usage - please see the AWS Pricing page for details. You are responsible for any AWS costs incurred. No warranty is implied in this example.

Requirements

• Create an AWS account if you do not already have one and log in. The IAM user that you use must have sufficient permissions to make necessary AWS service calls and manage AWS resources.
• AWS CLI installed and configured
• Git Installed
• Node and NPM installed
• AWS Cloud Development Kit (AWS CDK) installed

Deployment Instructions

1. Create a new directory, navigate to that directory in a terminal and clone the GitHub repository:

   git clone https://github.com/aws-samples/serverless-patterns
   
2. Change directory to the pattern directory:

   cd alb-lambda-cdk
   
3. Run below command to install required dependancies:

   npm install
   
4. From the command line, run:

   cdk deploy --all
   

Testing

1. In the stack output, you can see ALBUrl and when access the url, you can get the response from Lambda.

** Please note: Application Load Balancer's default settings for health check are 5 consecutive health check successes with 35 seconds interval. So, it will take couple of minutes for the target to be healthy.

Cleanup

1. To delete the stack, run:

   cdk destroy --all

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