CDK Layer in Lambda

This is an example how I used CDK in a Lambda layer to deploy and manage multiple but similar stacks.

Overview

Gradle is used to zip the lambda layer, run Webpack to optimize lambda's code and dependencies, pack it and to run terraform apply. Please note that in this example I used -auto-approve flag. (see /terraform-utils/deploy.sh)

Prerequisite

• terraform (v0.12.28 was used)

Usage

If you want to run this example you need to

1. You might need to run cdk bootstrap "cdk bootstrap --profile <profile_if_you_use> aws:///<AWS_REGION>" in the acc/region when running CDK for the first time in this AWS account

2. Setup remote state for terraform:

In cdk-deployer/terraform/remote-state set your provider settings and run

terraform init
terraform apply

4. Get the names of remote state S3 bucket and DynamoDB table and set them in

`cdk_layer_in_lambda/cdk-deployer/terraform/prod/main.tf

5. To deploy your lambda run:

sh gradlew cdk-lambda-layer:packageLayer
sh gradlew cdk-deployer:deploy

Or use Gradle in Intellij

6. Call deploy/destroy lambda with payload

{
  "id": "myStackName"
}

Content

/cdk-lambda-layer - install CDK, prepare zip /cdk-deployer/lambda - Stack definition, Lambda code /cdk-deployer/terraform - terraform to deployer Lambda together with CDK in layer