AWSTemplateFormatVersion: 2010-09-09

Description: Create DMS Instance, Tasks, VPC, Subnet, Source Bucket, Target Tables in Dynamo for data replication.

Parameters:
    EnvironmentName:
        Description: An environment name that will be prefixed to resource names
        Type: String
        Default: dms-vpc

    VpcCIDR: 
        Description: Please enter the IP range (CIDR notation) for this VPC
        Type: String
        Default: 10.192.0.0/16

    PublicSubnet1CIDR:
        Description: Please enter the IP range (CIDR notation) for the public subnet in the first Availability Zone
        Type: String
        Default: 10.192.10.0/24

    PublicSubnet2CIDR:
        Description: Please enter the IP range (CIDR notation) for the public subnet in the second Availability Zone
        Type: String
        Default: 10.192.11.0/24
        
    ReplicationInstance:
        Description: The instance type to use for the replication instance.
        Type: String
        Default: dms.t2.large
        
    DMSRoleName:
        Description: role name for DMS tasks
        Type: String
        Default: dms-vpc-role
        
Resources:

    rolesAndBucketStack:
        Type: AWS::CloudFormation::Stack
        Properties:
          TemplateURL: https://s3-us-west-2.amazonaws.com/prc-reinvent-2018/cfn-scripts/create-roles-and-bucket-001.yaml
          TimeoutInMinutes: '60'
      
    vpcStack:
        Type: AWS::CloudFormation::Stack
        Properties:
          Parameters:
            EnvironmentName: !Ref EnvironmentName
            VpcCIDR: !Ref VpcCIDR
            PublicSubnet1CIDR: !Ref PublicSubnet1CIDR
            PublicSubnet2CIDR: !Ref PublicSubnet2CIDR
          TemplateURL: https://s3-us-west-2.amazonaws.com/prc-reinvent-2018/cfn-scripts/create-vpc-002.yaml
          TimeoutInMinutes: '60'
      
    dmsStack:
        Type: AWS::CloudFormation::Stack
        Properties:
          Parameters:
            ReplicationInstance: !Ref ReplicationInstance
            DMSRoleName: !Ref DMSRoleName
          TemplateURL: https://s3-us-west-2.amazonaws.com/prc-reinvent-2018/cfn-scripts/create-dms-stack-003.yaml
          TimeoutInMinutes: '60'
        DependsOn: 
        - vpcStack
        - rolesAndBucketStack
      
    copyToS3:
        Type: AWS::CloudFormation::Stack
        Properties:
          TemplateURL: https://s3-us-west-2.amazonaws.com/prc-reinvent-2018/cfn-scripts/copy-data-to-s3-004.yaml
          TimeoutInMinutes: '60'
        DependsOn: 
        - vpcStack
        - rolesAndBucketStack
        - dmsStack
      
    startDMSReplication:
        Type: AWS::CloudFormation::Stack
        Properties:
          TemplateURL: https://s3-us-west-2.amazonaws.com/prc-reinvent-2018/cfn-scripts/start-dms-replication-005.yaml
          TimeoutInMinutes: '60'
        DependsOn: 
        - vpcStack
        - rolesAndBucketStack
        - dmsStack
        - copyToS3
      
Outputs:
    StackRef:
        Value: !Ref dmsStack
    OutputFromNestedStack:
        Value: !GetAtt dmsStack.Outputs.DMSTaskMigration