aws-wafwebacl-cloudfront

Reference Documentation:

https://docs.aws.amazon.com/solutions/latest/constructs/

Language	Package
Python	aws_solutions_constructs.aws_wafwebacl_cloudfront
Typescript	@aws-solutions-constructs/aws-wafwebacl-cloudfront
Java	software.amazon.awsconstructs.services.wafwebaclcloudfront

Overview

This AWS Solutions Construct implements an AWS WAF web ACL connected to Amazon CloudFront.

Here is a minimal deployable pattern definition:

Typescript

import { Construct } from 'constructs';
import { Stack, StackProps } from 'aws-cdk-lib';
import { CloudFrontToS3 } from '@aws-solutions-constructs/aws-cloudfront-s3';
import { WafwebaclToCloudFront } from "@aws-solutions-constructs/aws-wafwebacl-cloudfront";

const cloudfrontToS3 = new CloudFrontToS3(this, 'test-cloudfront-s3', {});

// This construct can only be attached to a configured CloudFront.
new WafwebaclToCloudFront(this, 'test-wafwebacl-cloudfront', {
    existingCloudFrontWebDistribution: cloudfrontToS3.cloudFrontWebDistribution
});

Python

from aws_solutions_constructs.aws_cloudfront_s3 import CloudFrontToS3
from aws_solutions_constructs.aws_wafwebacl_cloudfront import WafwebaclToCloudFront
from aws_cdk import Stack
from constructs import Construct

cloudfront_to_s3 = CloudFrontToS3(self, 'test_cloudfront_s3')

# This construct can only be attached to a configured CloudFront.
WafwebaclToCloudFront(self, 'test_wafwebacl_cloudfront',
                      existing_cloud_front_web_distribution=cloudfront_to_s3.cloud_front_web_distribution
                      )

Java

import software.constructs.Construct;

import software.amazon.awscdk.Stack;
import software.amazon.awscdk.StackProps;
import software.amazon.awsconstructs.services.cloudfronts3.*;
import software.amazon.awsconstructs.services.wafwebaclcloudfront.*;

final CloudFrontToS3 cloudfrontToS3 = new CloudFrontToS3(this, "test-cloudfront-s3",
        new CloudFrontToS3Props.Builder()
                .build());

// This construct can only be attached to a configured CloudFront.
new WafwebaclToCloudFront(this, "test-wafwebacl-cloudfront", new WafwebaclToCloudFrontProps.Builder()
        .existingCloudFrontWebDistribution(cloudfrontToS3.getCloudFrontWebDistribution())
        .build());

Pattern Construct Props

Name	Type	Description
existingCloudFrontWebDistribution	cloudfront.Distribution	The existing CloudFront instance that will be protected with the WAF web ACL. Note that a WAF web ACL can only be added to a configured CloudFront, so this construct only accepts an existing Distribution and does not accept cloudfrontProps.
existingWebaclObj?	waf.CfnWebACL	Existing instance of a WAF web ACL, an error will occur if this and props is set.
webaclProps?	waf.CfnWebACLProps	Optional user-provided props to override the default props for the AWS WAF web ACL. To use a different collection of managed rule sets, specify a new rules property. Use our wrapManagedRuleSet(managedGroupName: string, vendorName: string, priority: number) function from core to create an array entry from each desired managed rule set.

Pattern Properties

Name	Type	Description
webacl	waf.CfnWebACL	Returns an instance of the waf.CfnWebACL created by the construct.
cloudFrontWebDistribution	cloudfront.Distribution	Returns an instance of cloudfront.Distribution created by the construct.

Default settings

Out of the box implementation of the Construct without any override will set the following defaults:

AWS WAF

• Deploy a WAF web ACL with 7 AWS managed rule groups.

  • AWSManagedRulesBotControlRuleSet

  • AWSManagedRulesKnownBadInputsRuleSet

  • AWSManagedRulesCommonRuleSet

  • AWSManagedRulesAnonymousIpList

  • AWSManagedRulesAmazonIpReputationList

  • AWSManagedRulesAdminProtectionRuleSet

  • AWSManagedRulesSQLiRuleSet

    Note that the default rules can be replaced by specifying the rules property of CfnWebACLProps

• Send metrics to Amazon CloudWatch

Amazon CloudFront

• User provided CloudFront object is used as-is

Architecture

Github

Go to the Github repo for this pattern to view the code, read/create issues and pull requests and more.