@aws-solutions-constructs/aws-cloudfront-s3

aws-cloudfront-s3 module

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

Language	Package
Python	aws_solutions_constructs.aws_cloudfront_s3
Typescript	@aws-solutions-constructs/aws-cloudfront-s3
Java	software.amazon.awsconstructs.services.cloudfronts3

Overview

This AWS Solutions Construct provisions an Amazon CloudFront Distribution that serves objects from an AWS S3 Bucket via an Origin Access Control (OAC).

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';

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

Python

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

CloudFrontToS3(self, 'test-cloudfront-s3')

Java

import software.constructs.Construct;

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

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

Pattern Construct Props

Name	Type	Description
cloudFrontDistributionProps?	cloudfront.DistributionProps	Optional user provided props to override the default props for CloudFront Distribution
insertHttpSecurityHeaders?	boolean	Optional user provided props to turn on/off the automatic injection of best practice HTTP security headers in all responses from CloudFront
responseHeadersPolicyProps?	cloudfront.ResponseHeadersPolicyProps	Optional user provided configuration that cloudfront applies to all http responses.
originPath?	string	Optional user provided props to provide anoriginPath that CloudFront appends to the origin domain name when CloudFront requests content from the origin. The string should start with a /, for example: /production. Default value is '/'
existingBucketObj?	s3.IBucket	Existing instance of S3 content bucket object or interface. If this is provided, then also providing bucketProps will cause an error.
bucketProps?	s3.BucketProps	Optional user provided props to override the default props for the S3 content bucket. Note - to log S3 access for this bucket to an existing S3 bucket, put the existing log bucket in bucketProps: serverAccessLogsBucket
logS3AccessLogs?	boolean	Whether to turn on Access Logging for the S3 bucket. Creates an S3 bucket with associated storage costs for the logs. Enabling Access Logging is a best practice. default - true
loggingBucketProps?	s3.BucketProps	Optional user provided props to override the default props for the S3 Logging Bucket.
cloudFrontLoggingBucketProps?	s3.BucketProps	Optional user provided props to override the default props for the CloudFront Logging Bucket. Note: to use an existing bucketto hold CloudFront logs, pass the existing log bucket in
logCloudFrontAccessLog	boolean	Optional - Whether to maintain access logs for the CloudFront Logging bucket. Specifying false for this while providing info about the log bucket will cause an error. Default = true
cloudFrontLoggingBucketAccessLogBucketProps	s3.BucketProps	Optional user provided props to override the default props for the CloudFront Log Bucket Access Log bucket. Providing both this and existingcloudFrontLoggingBucketAccessLogBucket will cause an error. To provide an existing bucket to accept these logs, pass the existing bucket in cloudFrontLoggingBucketProps::serverAccessLogBucket

Pattern Properties

Name	Type	Description
cloudFrontWebDistribution	cloudfront.Distribution	Returns an instance of cloudfront.Distribution created by the construct.
cloudFrontFunction?	cloudfront.Function	Returns an instance of the Cloudfront function created by the construct.
originAccessControl?	cloudfront.CfnOriginAccessControl	Returns an instance of cloudfront.CfnOriginAccessControl created by the construct.
s3BucketInterface	s3.IBucket	Returns an instance of s3.IBucket created by the construct.
s3Bucket?	s3.Bucket	Returns an instance of s3.Bucket created by the construct. IMPORTANT: If existingBucketObj was provided in Pattern Construct Props, this property will be undefined
s3LoggingBucket?	s3.Bucket	Returns an instance of s3.Bucket created by the construct as the logging bucket for the primary bucket.
cloudFrontLoggingBucket?	s3.Bucket	The S3 bucket created by the construct to hold CloudFront logs. Only populated if the construct creates the bucket (not if an existing bucket is passed in via DistributionProps)
cloudFrontLoggingBucketAccessLogBucket?	s3.Bucket	The S3 bucket containing the S3 access logs for the CloudFront log bucket. Only populated if the construct creates the bucket (not if the bucket is passed in via cloudFrontLoggingBucketProps::serverAccessLogBucket

Default settings

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

Amazon CloudFront

• Configure Access logging for CloudFront Distribution
• Enable automatic injection of best practice HTTP security headers in all responses from CloudFront Distribution
• CloudFront originPath set to '/'

Amazon S3 Bucket

• Configure Access logging for S3 Bucket
• Enable server-side encryption for S3 Bucket using AWS managed KMS Key
• Enforce encryption of data in transit
• Turn on the versioning for S3 Bucket
• Don't allow public access for S3 Bucket
• Retain the S3 Bucket when deleting the CloudFormation stack
• Applies Lifecycle rule to move noncurrent object versions to Glacier storage after 90 days

Architecture

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