Help with AWS Lambda function

[faws2019]

Hello there,

Thanks in advance for your comments. I am really a beginner in Python and I would really appreciate your help.

I need to create an AWS Lambda function to send a notification every four hours if a specific instance is up and running. I have created the code below, but that does not work at all (I know that probably is very bad code :)). Could you please advise? I would use an AWS CloudWatch event as trigger and an AWS SNS topic to send the notification.

import boto3


def instance_status(event, context):
try:
client = boto3.client('ec2')
r = client.describe_instance_status(InstanceIds=['i-xxxxxxxxxx'])
if r == 16:
sns = boto3.client('sns')
response = sns.publish(
TopicArn='arn:aws:sns:us-east-1:xxxxxxx:xxxxxxx',
Message='The x instance is up and running',
)


Regards,


Thanks!