aws-emr-launch 1.3.1

AWS EMR Launch modules

EMR Launch

Usage

This library is acts as a plugin to the AWS CDK providing additional L2 Constructs. To avoid circular references with CDK dependencies, this package will not install CDK and Boto3. Instead it expects these packages to already be installed.

It is recommended that a Python3 venv be used for all CDK builds and deployments.

To get up and running quickly:

1. Install the CDK CLI

   npm install -g aws-cdk
   

2. Use your mechanism of choice to create and activate a Python3 venv:

   python3 -m venv .env
   source .env/bin/activate
   

3. Install the CDK and Boto3 minimum requirements:

   pip install -r requirements.txt
   

4. Install aws-emr-launch package (package is currently installed from a wheel file):

   pip install aws-emr-launch
   

Development

Follow Step 1 - 3 above to configure an environment and install requirements

Install development requirements

After activating your venv:

pip install -r requirements-dev.txt

Installing New Layer Packages

The following will install the Lambda Layer packages

1. Update the requirements-lambda-layer.txt adding the new package(s)
2. Install new package(s): pip install -r requirements-lambda-layer.txt --target=aws_emr_launch/lambda_sources/layers/emr_config_utils/python/lib/python3.7/site-packages/
   • This will skip upgrades of previously installed packages

Updating Lambda Layer Packages

To Update the Lambda Layer packages it is recommended that you first delete the entire layer contents to eliminate bloat.

1. Remove packages: rm -fr aws_emr_launch/lambda_sources/layers/emr_config_utils/*
2. Update the requirements-lambda-layer.txt
3. Reinstall packages: pip install -r requirements-lambda-layer.txt --target=aws_emr_launch/lambda_sources/layers/emr_config_utils/python/lib/python3.7/site-packages/

Testing

To run the test suite (from within the venv):

pytest

After running tests

View test coverage reports by opening htmlcov/index.html in your web browser.

To write a test

• start a file named test_[the module you want to test].py
• import the module you want to test at the top of the file
• write test case functions that match either test_* or *_test

For more information refer to pytest docs