\n
import * as s3 from '@aws-cdk\/aws-s3'\r\nimport * as kms from '@aws-cdk\/aws-kms'\r\n\r\nconst key = new kms.Key(this, 'Key')\r\nconst alias = key.addAlias('archive')\r\n\r\nconst bucket = new s3.Bucket(this, 'Bucket', {\r\n bucketName: `${props.prefix}-archive`,\r\n encryption: s3.BucketEncryption.KMS,\r\n encryptionKey: alias,\r\n blockPublicAccess: s3.BlockPublicAccess.BLOCK_ALL,\r\n bucketKeyEnabled: true,\r\n versioned: true,\r\n removalPolicy: cdk.RemovalPolicy.RETAIN\r\n})<\/span><\/code><\/pre>\n<\/div>\n<\/div>\nTo use S3 bucket replication, you need to create an IAM role with permission to access data in Amazon S3 and use kms key:<\/p>\n
\n
\n
<\/code><\/p>\nimport * as iam from '@aws-cdk\/aws-iam'\r\n\r\nconst role = new iam.Role(this, 'ReplicationRole', {\r\n assumedBy: new iam.ServicePrincipal('s3.amazonaws.com'),\r\n path: '\/service-role\/'\r\n});\r\n\r\n\r\nrole.addToPolicy(\r\n new iam.PolicyStatement({\r\n resources: [\r\n bucket.bucketArn\r\n ],\r\n actions: [\r\n 's3:GetReplicationConfiguration',\r\n 's3:ListBucket'\r\n ]\r\n })\r\n);\r\n\r\nrole.addToPolicy(\r\n new iam.PolicyStatement({\r\n resources: [\r\n bucket.arnForObjects('*')\r\n ],\r\n actions: [\r\n 's3:GetObjectVersion',\r\n 's3:GetObjectVersionAcl',\r\n 's3:GetObjectVersionForReplication',\r\n 's3:GetObjectVersionTagging'\r\n ]\r\n })\r\n);\r\n\r\nrole.addToPolicy(\r\n new iam.PolicyStatement({\r\n resources: [\r\n key.keyArn\r\n ],\r\n actions: [\r\n 'kms:Decrypt'\r\n ]\r\n })\r\n);<\/span><\/code><\/pre>\n<\/div>\n<\/div>\nAfter completing the above steps, the next step is to create an Amazon S3 bucket with a KMS key that can be used in any region you want to replicate, here VTI Cloud configures the KMS key in the regionap-northeast-1<\/span><\/code> (Tokyo) and ap-southeast-2<\/span> <\/span><\/code>(Sydney).<\/p>\nTo avoid having to create each CloudFormation Stack in each region you want to replicate amazon S3 bucket data, AWS CloudFormation StackSet is used to automate deployment from the region. Currently, AWS CDK only supports low-level access to CloudFormation StackSet resources:<\/p>\n
\n
\n
<\/p>\n
import * as cdk from '@aws-cdk\/core'\r\n\r\nnew cdk.CfnStackSet(this, \"StackSet\", {\r\n stackSetName: `${props.prefix}-archive-replication`,\r\n permissionModel: \"SELF_MANAGED\",\r\n parameters: [\r\n {\r\n parameterKey: 'Prefix',\r\n parameterValue: props.prefix\r\n },\r\n {\r\n parameterKey: 'ReplicationRole',\r\n parameterValue: role.roleArn\r\n }\r\n ],\r\n stackInstancesGroup: [\r\n {\r\n regions: props.replications,\r\n deploymentTargets: {\r\n accounts: [AccountId],\r\n },\r\n },\r\n ],\r\n templateBody:templateReplicationData, #\u0111\u00e2y l\u00e0 template ch\u1ee9a Amazon S3 v\u00e0 KMS cho m\u1ecdi region\r\n});<\/span><\/code><\/pre>\n<\/div>\n<\/div>\nThe parameterReplicationRole<\/span><\/span><\/code> is required to grant access to KMS keys by region that IAM role uses to perform replication.<\/p>\n\n
\n
Parameters:\r\n Prefix:\r\n Type: String\r\n ReplicationRole:\r\n Type: String\r\n\r\nResources:\r\n Key:\r\n Type: AWS::KMS::Key\r\n Properties:\r\n KeyPolicy:\r\n Version: 2012-10-17\r\n Id: access-account\r\n Statement:\r\n - Sid: Enable IAM User Permissions\r\n Effect: Allow\r\n Principal:\r\n AWS: !Sub arn:aws:iam::${AWS::AccountId}:root\r\n Action: kms:*\r\n Resource: '*'\r\n - Sid: Replication\r\n Effect: Allow\r\n Principal:\r\n AWS: !Ref ReplicationRole\r\n Action:\r\n - kms:Encrypt\r\n - kms:ReEncrypt*\r\n - kms:GenerateDataKey*\r\n - kms:DescribeKey\r\n Resource: '*'\r\n\r\n KeyAlias:\r\n Type: AWS::KMS::Alias\r\n Properties:\r\n AliasName: alias\/archive\/replication\r\n TargetKeyId: !Ref Key\r\n\r\n Bucket:\r\n Type: AWS::S3::Bucket\r\n DeletionPolicy: Retain\r\n Properties:\r\n BucketName: !Sub ${Prefix}-archive-replication-${AWS::Region}\r\n AccessControl: Private\r\n PublicAccessBlockConfiguration:\r\n BlockPublicAcls: Yes\r\n BlockPublicPolicy: Yes\r\n IgnorePublicAcls: Yes\r\n RestrictPublicBuckets: Yes\r\n VersioningConfiguration:\r\n Status: Enabled\r\n BucketEncryption:\r\n ServerSideEncryptionConfiguration:\r\n - BucketKeyEnabled: Yes\r\n ServerSideEncryptionByDefault:\r\n SSEAlgorithm: aws:kms\r\n KMSMasterKeyID: !Sub arn:aws:kms:${AWS::Region}:${AWS::AccountId}:${KeyAlias}<\/span><\/code><\/pre>\n<\/div>\n<\/div>\nAWS resources in the region are replicated using their own name patterns to differentiate, VTI Cloud will example is ap-northeast-1<\/span><\/code><\/span> in the following configuration:<\/p>\n\n- \n
KMS Key
\narn:aws:kms:ap-northeast-1:11223344:alias\/archive\/replication<\/strong><\/p>\n<\/li>\n- \n
S3 Bucket
\narn:aws:s3:::prefix-archive-replication-ap-northeast-1<\/strong><\/p>\n<\/li>\n<\/ul>\nUsing this name pattern, you can extend the IAM role used for region replication from the primary region:<\/p>\n
\n
\n
role.addToPolicy(<\/span><\/code><\/div>\n<\/div>\n\n
new iam.PolicyStatement({\r\n resources: props.replications.map(\r\n region => `arn:aws:kms:${region}:$(AccountId):alias\/archive\/replication`\r\n ),\r\n actions: [\r\n 'kms:Encrypt'\r\n ]\r\n })\r\n);\r\n\r\nrole.addToPolicy(\r\n new iam.PolicyStatement({\r\n resources: props.replications.map(\r\n region => `arn:aws:s3:::${props.prefix}-archive-replication-${region}\/*`\r\n ),\r\n actions: [\r\n 's3:ReplicateDelete',\r\n 's3:ReplicateObject',\r\n 's3:ReplicateTags'\r\n ]\r\n })\r\n);\r\n\r\nrole.addToPolicy(\r\n new iam.PolicyStatement({\r\n resources: props.replications.map(\r\n region => `arn:aws:s3:::${props.prefix}-archive-replication-${region}`\r\n ),\r\n actions: [\r\n 's3:List*',\r\n 's3:GetBucketVersioning',\r\n 's3:PutBucketVersioning'\r\n ]\r\n })\r\n);<\/span><\/code><\/pre>\n<\/div>\n<\/div>\nStep 4: Configure to deploy Multi-Region S3 Replication\u00a0<\/h3>\n
Set up S3 Replication Configuration at Amazon S3 bucket in the primary region. In this step, AWS CDK can still use low-level objects to configure replication:<\/p>\n
\n
\n
const cfnBucket = bucket.node.defaultChild as s3.CfnBucket;\r\n\r\ncfnBucket.replicationConfiguration = {\r\n role: role.roleArn,\r\n rules: props.replications.map(\r\n (region, index) => (\r\n {\r\n id: region,\r\n destination: {\r\n bucket: `arn:aws:s3:::${props.prefix}-archive-replication-${region}`,\r\n encryptionConfiguration: {\r\n replicaKmsKeyId: `arn:aws:kms:${region}:${AccountID}:alias\/archive\/replication`\r\n }\r\n },\r\n priority: index,\r\n deleteMarkerReplication: {\r\n status: 'Enabled'\r\n },\r\n filter: {\r\n prefix: ''\r\n },\r\n sourceSelectionCriteria: {\r\n sseKmsEncryptedObjects: {\r\n status: 'Enabled'\r\n }\r\n },\r\n status: 'Enabled'\r\n }\r\n )\r\n )\r\n}<\/span><\/code><\/pre>\n<\/div>\n<\/div>\nStep 5: Deploy<\/h3>\n
As said above, after running using the command below, everything will be implemented with this command:<\/p>\n
\n
npx cdk deploy<\/span><\/code><\/div>\n<\/div>\nConclusion<\/h2>\n
With only the AWS Cloud Development Kit, you can create the AWS CloudFormation template.<\/strong><\/p>\nFrom this template, you can create the AWS CloudFormation<\/strong> Stack.<\/strong> This stack will help you deploy services such as Amazon S3 bucket, AWS Identity & Access Management role, an AWS Key Management Service key, and 01 AWS CloudFormation StackSet.<\/strong><\/p>\nAWS CloudFormation StackSet then uses the template above<\/strong> to create AWS CloudFormation<\/strong> Stack<\/strong> for different regions, and this Stack <\/strong>continues to be used to create resources such as S3 bucket, IAM role, and KMS key, where Amazon S3 bucket features S3 Replication Configuration.<\/p>\n
![\"iam](\"http:\/\/vticloud.io\/wp-content\/uploads\/2021\/06\/iam-roles-for-cloudformation.png\")
<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n