A lambda function that checks for the latest Terraform release

check_terraform_version.py

import boto3,requests,json,os,pprint
from bs4 import BeautifulSoup

tf_github_url = os.environ["target_url"] #"https://github.com/hashicorp/terraform/releases"
sns_topic_arn = os.environ["sns_topic_arn"] # eg arn:aws:sns:us-west-2:account-id:Report_terra_version

def post_to_SNS(SNS_topic_ARN, msg):

	client = boto3.client('sns')
	response = client.publish(
		TopicArn		= SNS_topic_ARN,
		Message			= json.dumps(
										{'default': json.dumps(msg)}
									),
		MessageStructure= 'json'
	)

def handler(event, context):
	"""
	The function grabs the number of the latest release

	:param event:
	:param context:
	:return:
	"""
	responce = requests.get(tf_github_url)
	raw_content = responce.content
	soup = BeautifulSoup(raw_content)

	latest_release = soup.find("div", "release label-latest").find("div", "release-header").find("a").string
	# pprint.pprint(latest_release) #debug

	# publish it to an SNS topic
	message = {"ATTENTION:": "The latest Terraform version is %s" % latest_release}
	post_to_SNS(SNS_topic_ARN=sns_topic_arn, msg=message)