publish_lambda_layer.sh

#!/bin/bash
REGION=us-east-1
RUNTIME=python3.7

while getopts :n:r:p: OPT
do
    case $OPT in
        n) PACKAGE=$OPTARG;;
        r) REGION=$OPTARG;;
        p) RUNTIME=$OPTARG;;
        *) echo "Please specify options correctly."
    esac
done

if [ -z "$PACKAGE" ]; then
    echo "Please specify a package name by -n option."
    exit 1
fi

docker run \
  -v $(pwd):/opt \
  -it lambci/lambda:build-$RUNTIME \
  pip install $PACKAGE -t /opt/python

zip -r $PACKAGE.zip python/

aws lambda publish-layer-version \
    --layer-name $PACKAGE \
    --region $REGION \
    --description "$PACKAGE for Lambda Layers" \
    --zip-file fileb://$PACKAGE.zip \
    --compatible-runtimes $RUNTIME

rm -rf python *.zip