For npm projects! Convenience script to build, pack and upload code to an AWS Lambda function, using the AWS CLI. For personal and experimental use only!

lambda-publish-npm.sh

#!/usr/bin/env bash
#title          : lambda-publish-npm.sh
#description    : For npm projects! Convenience script to build, pack and upload code to an AWS Lambda function, using the AWS CLI. For personal and experimental use only!
#author         : Christian-André Giehl <christian@emailbrief.de>
#date           : 20170410
#version        : 1.1
#usage          : sh lambda-publish-npm.sh
#==============================================================================

# Exits in case the supplied state is != 0. State is typically supplied via $?
exitOnError() {
    state=$1
    msg=$2
    if [ $state -ne 0 ]; then
        echo "!!! ${msg}"
        echo "### Exiting."
        exit $state
    fi
}

# Check is AWS CLI is there
command -v aws
exitOnError $? "AWS CLI not found or not accessible!"

#
# AWS cfg
#
PROJECT_NAME=lambda-printbureau-notifier
ARN=arn:aws:lambda:eu-central-1:216518302536:function:lambda-printbureau-notifier
PROFILE=internal-user
REGION=eu-central-1

pack() {
    rm *.zip
    rm *.tgz
    rm -rf package

    npm pack
    FILE=$(find * -type f -iname ${PROJECT_NAME}*.tgz -print -quit)
    tar -xf ${FILE}
    cd package && zip -r ../${FILE}.zip ./ && cd ..

    rm *.tgz
    rm -rf package

    exitOnError $? "Unable to zip!"

    FILE=$(find * -type f -iname $PROJECT_NAME*.zip -print -quit)
    echo "##### Adding node_modules..."
    zip -ur ${FILE} node_modules
    exitOnError $? "Unable to add node_modules to zip!"
}

echo "### Packaging..."
pack
exitOnError $? "Unable to package!"

echo "### Using file '${FILE}' to deploy to lambda..."

read -p "-----> DO YOU WANT TO DEPLOY? [Yy]es " -n 1 -r
if ! [[ $REPLY =~ ^[Yy]$ ]]
then
    echo "!!! ABORTED !!!"
    exit 1
fi

#
# Deploy!
#
aws --region ${REGION} \
--profile ${PROFILE} \
lambda update-function-code \
--function-name ${ARN} \
--zip-file fileb://${FILE} \
--publish
exitOnError $? "Deployment failed!"

echo "### Cleaning up..."
rm -rf package

echo "### Done!"