Install and configure pyenv (not covered here)
pyenv install 3.8.0
pyenv shell 3.8.0
mkvirtualenv --python=pyenv which python lambda_layer
which python /Users/tonynv/.virtualenvs/lambda_layer/bin/python
mkdir lambda_layer
pip install taskcat -t lambda_layers/python/lib/python3.8/site-packages/ zip -r taskcat_lambda_layer.zip *
aws lambda publish-layer-version
--layer-name taskcat-layer
--description "taskcat layer"
--license-info "Apache 2.0"
--content S3Bucket=tonynv-lambda,S3Key=taskcat_lambda_layer.zip
--compatible-runtimes python3.8