by Samuel Bucheli, Stefan Friedli and Lukas Akermann

Goal: Implement an AWS Lambda application architecture on code from Garfolo's Book «Practical Microservices».

• Practical Microservices by Ethan Garofolo
  • Book: https://learning.oreilly.com/library/view/practical-microservices/9781680507782/
  • Website: https://pragprog.com/titles/egmicro/practical-microservices/

Create an access key on AWS IAM, then add the following to ~/.aws/config

[profile camp-lambda-in-action]
region = us-east-1
output = json

and the following to ~/.aws/credentials

[camp-lambda-in-action]
aws_access_key_id=<id>
aws_secret_access_key=<secret>

(replacing the placeholders with the actual access key values, of course).

We have used Terraform 1.3.3 while we have experimented with this code. So, this will most likely be the most suitable version to use.

Hint: You can use tfenv https://github.com/tfutils/tfenv to manage Terraform versions. Install with

brew install tfenv

on Mac and then activate the Terraform version using

tfenv use

(this will use the .terraform-version file).

We have used Node v16.18.0 while we have experimented with this code. So, this will most likely be the most suitable version to use.

Hint: You can use nvm https://github.com/nvm-sh/nvm to manage Node installations. Install with

brew install nvm 

on Mac and then activate the Node version using

nvm use

To use nvm, you may have to configure some additional steps, see https://formulae.brew.sh/formula/nvm

First, ensure you have all dependencies installed by running

npm install

in the infrastructure folder.

Then, run

npx cdktf get

It should show something like this

Generated typescript constructs in the output directory: .gen

Generates a diff by running Terraform plan:

npx cdktf diff

Deploy:

npx cdktf deploy

Update dependency:

"pg": "^8.0.3"