All files / lib organization.ts

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/*
Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
  
Licensed under the Apache License, Version 2.0 (the "License").
You may not use this file except in compliance with the License.
You may obtain a copy of the License at
 
    http://www.apache.org/licenses/LICENSE-2.0
 
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
 
import * as core from '@aws-cdk/core';
import * as cr from '@aws-cdk/custom-resources';
import {PolicyStatement}  from '@aws-cdk/aws-iam';
 
/**
 * This represents an Organization
 */
export class Organization extends core.Construct {
 
    /**
     * The Id of the Organization
     */
    readonly id: string;
 
    /**
     * The Id of the root Organizational Unit of the Organization
     */
    readonly rootId: string;
 
    constructor(scope: core.Construct, id: string) {
        super(scope, id)
 
        let org = new cr.AwsCustomResource(this, 
            "orgCustomResource", 
            {
              onCreate: {
                service: 'Organizations',
                action: 'createOrganization',
                physicalResourceId: cr.PhysicalResourceId.fromResponse('Organization.Id'),
                region: 'us-east-1' //AWS Organizations API are only available in us-east-1 for root actions
              },
              onUpdate: {
                service: 'Organizations',
                action: 'describeOrganization',
                physicalResourceId: cr.PhysicalResourceId.fromResponse('Organization.Id'),
                region: 'us-east-1' //AWS Organizations API are only available in us-east-1 for root actions
              },
              onDelete: {
                service: 'Organizations',
                action: 'deleteOrganization',
                region: 'us-east-1' //AWS Organizations API are only available in us-east-1 for root actions
              },
              installLatestAwsSdk: false,
              policy: cr.AwsCustomResourcePolicy.fromSdkCalls(
                {
                  resources: cr.AwsCustomResourcePolicy.ANY_RESOURCE
                }
              )
            }
           );
              
           /*the lambda needs to have the iam:CreateServiceLinkedRole permission so that the AWS Organizations service can create 
           Service Linked Role on its behalf
           */
           org.grantPrincipal.addToPrincipalPolicy(PolicyStatement.fromJson(
            {
              "Sid": "CreateServiceLinkedRoleStatement",
              "Effect": "Allow",
              "Action": "iam:CreateServiceLinkedRole",
              "Resource": "arn:aws:iam::*:role/*",
            })
          );
 
          this.id = org.getResponseField('Organization.Id');
 
          let root = new cr.AwsCustomResource(this, 
            "RootCustomResource", 
            {
              onCreate: {
                service: 'Organizations',
                action: 'listRoots',
                physicalResourceId: cr.PhysicalResourceId.fromResponse('Roots.0.Id'),
                region: 'us-east-1', //AWS Organizations API are only available in us-east-1 for root actions
              },
              onUpdate: {
                service: 'Organizations',
                action: 'listRoots',
                physicalResourceId: cr.PhysicalResourceId.fromResponse('Roots.0.Id'),
                region: 'us-east-1', //AWS Organizations API are only available in us-east-1 for root actions
              },
              onDelete: {
                service: 'Organizations',
                action: 'listRoots',
                physicalResourceId: cr.PhysicalResourceId.fromResponse('Roots.0.Id'),
                region: 'us-east-1', //AWS Organizations API are only available in us-east-1 for root actions
              },
              installLatestAwsSdk: false,
              policy: cr.AwsCustomResourcePolicy.fromSdkCalls(
                {
                  resources: cr.AwsCustomResourcePolicy.ANY_RESOURCE
                }
              )
            }
          );
 
          // Enabling SSM AWS Service access to be able to register delegated adminstrator
          const enableSSMAWSServiceAccess = this.enableAWSServiceAccess('ssm.amazonaws.com');
          const enableMultiAccountsSetupAWSServiceAccess = this.enableAWSServiceAccess('config-multiaccountsetup.amazonaws.com');
 
          enableMultiAccountsSetupAWSServiceAccess.node.addDependency(org);
          enableSSMAWSServiceAccess.node.addDependency(enableMultiAccountsSetupAWSServiceAccess);
 
          //adding an explicit dependency as CloudFormation won't infer that calling listRoots must be done only when Organization creation is finished as there is no implicit dependency between the 
          //2 custom resources 
          root.node.addDependency(org);
 
          this.rootId = root.getResponseField("Roots.0.Id");                        
    }
 
  private enableAWSServiceAccess(principal: string) {
    const resourceName = principal==='ssm.amazonaws.com'?"EnableSSMAWSServiceAccess":"EnableMultiAccountsSetup";
 
    return new cr.AwsCustomResource(this,
      resourceName,
      {
        onCreate: {
          service: 'Organizations',
          action: 'enableAWSServiceAccess',
          physicalResourceId: cr.PhysicalResourceId.of(resourceName),
          region: 'us-east-1',
          parameters: {
            ServicePrincipal: principal,
          }
        },
        onDelete: {
          service: 'Organizations',
          action: 'disableAWSServiceAccess',
          region: 'us-east-1',
          parameters: {
            ServicePrincipal: principal,
          }
        },
        installLatestAwsSdk: false,
        policy: cr.AwsCustomResourcePolicy.fromSdkCalls(
          {
            resources: cr.AwsCustomResourcePolicy.ANY_RESOURCE
          }
        )
      }
    );
  }
}