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CDK constructs for defining an AWS web WAF connected to Amazon CloudFront.

Project description

aws-wafwebacl-cloudfront module

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Stability: Experimental

All classes are under active development and subject to non-backward compatible changes or removal in any future version. These are not subject to the Semantic Versioning model. This means that while you may use them, you may need to update your source code when upgrading to a newer version of this package.


Reference Documentation: https://docs.aws.amazon.com/solutions/latest/constructs/
Language Package
Python Logo Python aws_solutions_constructs.aws_wafwebacl_cloudfront
Typescript Logo Typescript @aws-solutions-constructs/aws-wafwebacl-cloudfront
Java Logo 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 in Typescript:

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
});

Initializer

new WafwebaclToCloudFront(scope: Construct, id: string, props: WafwebaclToCloudFrontProps);

Parameters

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 CloudFrontWebDistribution 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

Architecture Diagram


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