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@aniket91 aniket91/update-lambda.sh
Last active Feb 10, 2018

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Shell script to update lambda code and environment variables to multiple regions and environments using AWS CLI
#!/bin/bash
#----------------------------------------------------
# Author : athakur
# Version : 1.0
# Date : 10/02/2018
# Description : Deployment script to update lambda code and env variables
# Sample usage :
# Local : ./update-lambda.sh test aws-admin fileb://../lambda.zip
# Dev : ./update-lambda.sh dev aws-admin fileb://../lambda.zip
# QA : ./update-lambda.sh qa aws-admin fileb://../lambda.zip
# Prod : ./update-lambda.sh prod aws-admin fileb://../lambda.zip
# More details : http://opensourceforgeeks.blogspot.in/2018/02/shell-script-to-update-lambda-code-and.html
#----------------------------------------------------
echo "Updating lambda code for ENV : $1 PROFILE : $2 ZIP_FILE_PATH : $3"
ENV=$1
PROFILE=$2
ZIP_FILE_PATH=$3
if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ]
then
echo "Incorrect arguments supplied. Format - ./update-lambda.sh ENV PROFILE ZIP_FILE_PATH"
exit
fi
FUNCTION_NAME="my-lambda-$ENV"
ENV_VAR_1=1991
ENV_VAR_2="test"
SNS_ENDPOINT=''
SUPPORTED_REGIONS=("us-east-1" "ap-northeast-1" "ap-southeast-1" "ap-southeast-2")
for REGION in ${SUPPORTED_REGIONS[@]}
do
echo 'Region : $REGION'
case "$REGION" in
"us-east-1")
SNS_ENDPOINT="arn:aws:sns:us-east-1:123456789123:my-sns-notification"
;;
"ap-northeast-1")
SNS_ENDPOINT="arn:aws:sns:ap-northeast-1:123456789123:my-sns-notification"
;;
"ap-southeast-1")
SNS_ENDPOINT="arn:aws:sns:ap-southeast-1:123456789123:my-sns-notification"
;;
"ap-southeast-2")
SNS_ENDPOINT="arn:aws:sns:ap-southeast-2:123456789123:my-sns-notification"
;;
*)
echo "Environment not provided"
exit 1
;;
esac
env_variables="{\"Variables\":{\"ENV_VAR_1\":\"${ENV_VAR_1}\",\"ENV_VAR_2\":\"${ENV_VAR_2}\",\"SNS_ENDPOINT\":\"${SNS_ENDPOINT}\",\"ENV\":\"${ENV}\"}}"
echo "Env variables : $env_variables"
lambda_update_env_command="aws lambda update-function-configuration --function-name $FUNCTION_NAME --region $REGION --profile $PROFILE --environment '$env_variables' --timeout 300 --memory-size 3008"
echo "Executing command : $lambda_update_env_command"
eval $lambda_update_env_command
lambda_update_code_command="aws lambda update-function-code --function-name $FUNCTION_NAME --region $REGION --zip-file $ZIP_FILE_PATH --profile $PROFILE"
echo "Executing command : $lambda_update_code_command"
eval $lambda_update_code_command
echo "Completed Lambda function update for region $REGION"
done
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