buildspec.yml

version: 0.2
phases:
    install:
        commands:
            # Install all dependencies (including dependencies for running tests)
            - pip install -r requirements.txt
    pre_build:
        commands:
            # Discover and run unit tests in the '__tests__' directory
            - python -m pytest tests/ -v
            # Remove all unit tests to reduce the size of the package that will be ultimately uploaded to Lambda
            - rm -rf tests
    build:
        commands:
            # Use AWS SAM to package the application by using AWS CloudFormation
            - aws cloudformation package --template template.yaml --s3-bucket $S3_BUCKET --output-template template-export.yaml
artifacts:
    files:
        - template-export.yaml