我尝试模仿这一点,并成功地将 Cloudfront 分发集成到私有 S3 存储桶。不过,我的堆栈使用了 TS。我确信将下面的代码与 Python 版本关联起来会很容易。假设有一个index.html
文件输入dist
aws-cdk v1.31.0(最新截至 2020 年 3 月 29 日)
import { App, Stack, StackProps } from '@aws-cdk/core';
import { BucketDeployment, Source } from '@aws-cdk/aws-s3-deployment';
import { CloudFrontWebDistribution, OriginAccessIdentity } from '@aws-cdk/aws-cloudfront';
import { BlockPublicAccess, Bucket, BucketEncryption } from '@aws-cdk/aws-s3';
export class HelloCdkStack extends Stack {
constructor(scope: App, id: string, props?: StackProps) {
super(scope, id, props);
const myFirstBucket = new Bucket(this, 'MyFirstBucket', {
versioned: true,
encryption: BucketEncryption.S3_MANAGED,
bucketName: 'cdk-example-bucket-for-test',
websiteIndexDocument: 'index.html',
blockPublicAccess: BlockPublicAccess.BLOCK_ALL
});
new BucketDeployment(this, 'DeployWebsite', {
sources: [Source.asset('dist')],
destinationBucket: myFirstBucket
});
const oia = new OriginAccessIdentity(this, 'OIA', {
comment: "Created by CDK"
});
myFirstBucket.grantRead(oia);
new CloudFrontWebDistribution(this, 'cdk-example-distribution', {
originConfigs: [
{
s3OriginSource: {
s3BucketSource: myFirstBucket,
originAccessIdentity: oia
},
behaviors: [
{ isDefaultBehavior: true }
]
}
]
});
}
}
== Update == [不带虚拟主机的 S3 存储桶]
下面是一个示例,其中 S3 用作没有 Web 托管的源。它按预期工作。
import { App, Stack, StackProps } from '@aws-cdk/core';
import { BucketDeployment, Source } from '@aws-cdk/aws-s3-deployment';
import { CloudFrontWebDistribution, OriginAccessIdentity } from '@aws-cdk/aws-cloudfront';
import { BlockPublicAccess, Bucket, BucketEncryption } from '@aws-cdk/aws-s3';
export class CloudfrontS3Stack extends Stack {
constructor(scope: App, id: string, props?: StackProps) {
super(scope, id, props);
// Create bucket (which is not a static website host), encrypted AES-256 and block all public access
// Only Cloudfront access to S3 bucket
const testBucket = new Bucket(this, 'TestS3Bucket', {
encryption: BucketEncryption.S3_MANAGED,
bucketName: 'cdk-static-asset-dmahapatro',
blockPublicAccess: BlockPublicAccess.BLOCK_ALL
});
// Create Origin Access Identity to be use Canonical User Id in S3 bucket policy
const originAccessIdentity = new OriginAccessIdentity(this, 'OAI', {
comment: "Created_by_dmahapatro"
});
testBucket.grantRead(originAccessIdentity);
// Create Cloudfront distribution with S3 as Origin
const distribution = new CloudFrontWebDistribution(this, 'cdk-example-distribution', {
originConfigs: [
{
s3OriginSource: {
s3BucketSource: testBucket,
originAccessIdentity: originAccessIdentity
},
behaviors: [
{ isDefaultBehavior: true }
]
}
]
});
// Upload items in bucket and provide distribution to create invalidations
new BucketDeployment(this, 'DeployWebsite', {
sources: [Source.asset('dist')],
destinationBucket: testBucket,
distribution,
distributionPaths: ['/images/*.png']
});
}
}
== UPDATE == [导入 S3 Bucket,而不是在同一堆栈中创建]
当我们引用现有的 S3 存储桶时,问题可能会重现。
Reason:
问题的根本原因在于在这行代码中 https://github.com/aws/aws-cdk/blob/4c7afb827b4005e337dd4635a80a7767bcec7b11/packages/%40aws-cdk/aws-s3/lib/bucket.ts#L412. autoCreatePolicy
一直会false对于导入的 S3 存储桶 https://github.com/aws/aws-cdk/blob/4c7afb827b4005e337dd4635a80a7767bcec7b11/packages/%40aws-cdk/aws-s3/lib/bucket.ts#L971。
使addResourcePolicy
导入的存储桶必须已有存储桶策略,以便可以附加新的策略语句,或者手动创建新的存储桶策略并添加策略语句。在下面的代码中,我手动创建了存储桶策略并添加了所需的策略语句。这非常接近于github 问题 #941 https://github.com/aws/aws-cdk/issues/941但细微的区别在于在堆栈中创建存储桶与导入已创建的存储桶之间。
import { App, Stack, StackProps } from '@aws-cdk/core';
import { CloudFrontWebDistribution, OriginAccessIdentity } from '@aws-cdk/aws-cloudfront';
import { Bucket, BucketPolicy } from '@aws-cdk/aws-s3';
import { PolicyStatement } from '@aws-cdk/aws-iam';
export class CloudfrontS3Stack extends Stack {
constructor(scope: App, id: string, props?: StackProps) {
super(scope, id, props);
const testBucket = Bucket.fromBucketName(this, 'TestBucket', 'dmahapatro-personal-bucket');
// Create Origin Access Identity to be use Canonical User Id in S3 bucket policy
const originAccessIdentity = new OriginAccessIdentity(this, 'OAI', {
comment: "Created_by_dmahapatro"
});
// This does not seem to work if Bucket.fromBucketName is used
// It works for S3 buckets which are created as part of this stack
// testBucket.grantRead(originAccessIdentity);
// Explicitly add Bucket Policy
const policyStatement = new PolicyStatement();
policyStatement.addActions('s3:GetBucket*');
policyStatement.addActions('s3:GetObject*');
policyStatement.addActions('s3:List*');
policyStatement.addResources(testBucket.bucketArn);
policyStatement.addResources(`${testBucket.bucketArn}/*`);
policyStatement.addCanonicalUserPrincipal(originAccessIdentity.cloudFrontOriginAccessIdentityS3CanonicalUserId);
// testBucket.addToResourcePolicy(policyStatement);
// Manually create or update bucket policy
if( !testBucket.policy ) {
new BucketPolicy(this, 'Policy', { bucket: testBucket }).document.addStatements(policyStatement);
} else {
testBucket.policy.document.addStatements(policyStatement);
}
// Create Cloudfront distribution with S3 as Origin
const distribution = new CloudFrontWebDistribution(this, 'cdk-example-distribution', {
originConfigs: [
{
s3OriginSource: {
s3BucketSource: testBucket,
originAccessIdentity: originAccessIdentity
},
behaviors: [
{ isDefaultBehavior: true }
]
}
]
});
}
}