How to start with AWS CDK

[antoinedelia]

Context: mainly working with Serverless Framework (CloudFormation) and Terraform.

As the former is now not free, and the later going into Business Source License, I wanted to explore alternatives.

In this post, we will focus on a replacement for Serverless Framework. A post about the Terraform replacement may come later (opentofu).

1. cdk init
2. cdk bootstrap to create first necessary resources
   What cdk bootstrap does:
   a. Creates an S3 Bucket: This bucket stores assets (like Lambda code, Docker images, or other files) that need to be uploaded before deployment.
   b. Creates an IAM Role: This role is used by the CDK during deployments to manage permissions for the deployment process.
   c. Amazon Elastic Container Registry (Amazon ECR) repository – Used primarily to store Docker images.
   c. Sets Up the CloudFormation Execution Role: Ensures that CloudFormation has the necessary permissions to deploy resources on your behalf.
   d. Enables Cross-Account or Cross-Region Deployments (optional): If you're deploying across multiple accounts or regions, cdk bootstrap can handle setting up necessary trust relationships.
3. ...