This is a serverless application.

S3 bucket without version history(easy to change in configuration)

DynamoDB to keep our data from s3 bucket

Notification from s3 to lambda for every new file in it.

Lambda which get content of file and put into DynamoDB

The least privileges for lambda to get files and put into a database.

Makefile has everything inside. From tests to deploy/destroy. You can run make to see all options it has.

This app is designed as a CDK stack with all resources inside. src directory has every resource from above. Depending on environment variables you can install as many copies of app as you want.

CI/CD is done through Github Actions

Development flow is: Branch --> Develop --> Main

For every push in any branch workflow cdk-branch.yaml runs test for python lambdas(mypy, pylint, black) and does cdk synth

After merging any branch to develop workflow cdk-develop.yaml runs deploy infrastructure to nonprod zone. It can be another account or shared account. Depends on configuration.

After merging any branch to the main workflow cdk-main.yaml runs deploy infrastructure to prod zone.

Destruction is an extra feature here. You can push to destroy branches to run cdk destroy for prod and nonprod environments. This was done for test purposes, but of course you can use it for some cases.