Encrypt and Decrypt AWS Lambda Function Environment Variables using AWS KMS

Publicado el: 06 octubre 2021
en el canal de: Knowledge Amplifier

6,189

Secrets are meant to be... well, secret.
We can not to expose important secure keys (like database passwords) to the outside world.
As such, hardcoding passwords inside of your source code is a terrible idea.
Luckily, with AWS Lambda we can avoid that - we're going to learn how we can use environment variables in order to pass in a password to a lambda function without potentially exposing it to the world.
Moreover using KMS , we can encrypt the environment variables & make the system more secured.

In this video , I have explained the basic concept of KMS , and how to use this to encrypt and decrypt secured credentials.

Prerequisite:
Extract data from an API Python , Talend
• Extract data from an API Python , Talend

Base Code:

import boto3
import requests
import json

def lambda_handler(event, context):
city_name=
api_key=
url="http://api.openweathermap.org/data/2...."+city_name+"&appid="+api_key+"&units=metric"
print("URL for API: ",url)
result=requests.get(url)
data_extracted=result.json()
temp_city=data_extracted['main']['temp']
message="The temperature of {} city : ".format(city_name)
print(message,temp_city)

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