AWS: Cloudfront Distribution

-- What is CloudFront WebAcl ID?

A WAF Access Control List (WebACL) ID in Amazon CloudFront is a component for enhancing the security of web applications and content delivery. CloudFront is AWS content delivery network service, and a WebACL ID is used to enforce security rules and policies on incoming traffic to protect against various web threats.


The WebACL ID serves as a reference to a specific set of rules and configurations within the WAF service. These rules are designed to filter and inspect incoming HTTP or HTTPS requests, helping to mitigate common web application vulnerabilities such as SQL and more.


When configuring CloudFront distributions, users can associate a WebACL ID with a distribution, effectively allowing the WebACL to act as a shield for the content being delivered through CloudFront. This means that incoming requests must pass through the WebACL's rules before reaching the origin server, helping to block malicious traffic and protect against attacks. CloudFront WebACLs are highly customizable, allowing users to define their own rules or use pre-configured rule sets provided by AWS. This flexibility makes it a valuable tool for securing web applications and content while benefiting from the performance and scalability of CloudFront's global network. 



-- Write a python code to change the Cloudfront WebAcl ID using Boto3 library

To change the WebACL ID associated with CloudFront distribution using the Boto3 library in Python.


import boto3


# Create a CloudFront client

cloudfront_client = boto3.client('cloudfront')


# Specify the CloudFront distribution ID

distribution_id = 'YOUR_DISTRIBUTION_ID'


# Specify the new WebACL ID you want to associate with the distribution

new_webacl_id = 'NEW_WEBACL_ID'


try:

    distribution_config = cloudfront_client.get_distribution_config(Id=distribution_id)

    distribution_config['DistributionConfig']['WebACLId'] = new_webacl_id


    # Update the distribution with the new configuration

    cloudfront_client.update_distribution(

        Id=distribution_id,

        IfMatch=distribution_config['ETag'],

        DistributionConfig=distribution_config['DistributionConfig']

    )

#Updated

except Exception as e:

    print(e)


This code retrieves the existing distribution configuration, updates the WebACL ID, and then updates the distribution with the new configuration.


Thank you 🍫 

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