Lifecycle of CDK applications. It required to bootstrap CDK at the beginning of the project.

▪ In official explanation, Deploying AWS CDK apps into an AWS environment (a combination of an AWS

account and region) may require that you provision resources the AWS CDK needs to perform the

deployment.

▪ These resources include an Amazon S3 bucket for storing files and IAM roles that grant permissions

needed to perform deployments.

https://docs.aws.amazon.com/cdk/v2/guide/bootstrapping.html