# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: MIT-0
Parameters: 
  AmiId: 
    Type: "AWS::EC2::Image::Id"
    Description: Identifier of new AMI to be deployed
  Version: 
    Type: "String"
    Description: Version of the software deployed
  SourceAuthorDate:
    Type: "String"
    Description: "Source parameter Author Date provided by AWS CodeCommit through AWS CodePipeline"
  SourceBranchName:
    Type: "String"
    Description: "Source parameter Branch Name provided by AWS CodeCommit through AWS CodePipeline"
  SourceCommitId:
    Type: "String"
    Description: "Source parameter Commit ID provided by AWS CodeCommit through AWS CodePipeline"
  SourceCommitMessage:
    Type: "String"
    Description: "Source parameter Commit Message provided by AWS CodeCommit through AWS CodePipeline"
  SourceCommitterDate:
    Type: "String"
    Description: "Source parameter Commit Date provided by AWS CodeCommit through AWS CodePipeline"
  SourceRepositoryName:
    Type: "String"
    Description: "Source parameter Repository Name provided by AWS CodeCommit through AWS CodePipeline"
  Subnets:
    Type: "String"
    Description: "Subnets where ASG should deploy the new instances"
  InstanceType:
    Type: "String"
    Description: "Instance Type for running the instances"
Resources:
  # Metadata around AMI to roll it out to a Development environment
  # using an AutoScalingGroup
  LaunchTemplate:
    Type: AWS::EC2::LaunchTemplate
    Properties:
      LaunchTemplateName: !Sub "${AWS::StackName}-Template"
      LaunchTemplateData:
        ImageId: !Ref AmiId
        InstanceType: !Sub "${InstanceType}"
        BlockDeviceMappings:
          - DeviceName:  "/dev/xvda"
            Ebs:
              DeleteOnTermination: true
              Encrypted: true
        TagSpecifications:
          - ResourceType: instance
            Tags:
              - Key: Application
                Value: !Sub
                  - "${ShortName}"
                  - ShortName: !Select [0, !Split ['-', !Ref AWS::StackName]]
              - Key: Name
                Value: !Sub
                  - "${ShortName} version ${Version}"
                  - ShortName: !Select [0, !Split ['-', !Ref AWS::StackName]]
              - Key: Version
                Value: !Sub "${Version}"
              - Key: "Source/AuthorDate"
                Value: !Sub "${SourceAuthorDate}"
              - Key: "Source/BranchName"
                Value: !Sub "${SourceBranchName}"
              - Key: "Source/CommitId"
                Value: !Sub "${SourceCommitId}"
              - Key: "Source/CommitMessage"
                Value: !Sub "${SourceCommitMessage}"
              - Key: "Source/CommitterDate"
                Value: !Sub "${SourceCommitterDate}"
              - Key: "Source/RepositoryName"
                Value: !Sub "${SourceRepositoryName}"
          - ResourceType: volume
            Tags:
              - Key: Application
                Value: !Sub
                  - "${ShortName}"
                  - ShortName: !Select [0, !Split ['-', !Ref AWS::StackName]]
              - Key: Name
                Value: !Sub
                  - "${ShortName} version ${Version}"
                  - ShortName: !Select [0, !Split ['-', !Ref AWS::StackName]]
  # AutoScalingGroup used as Development Environment for rolling out
  # the newly created AMI
  AutoScalingGroup:
    Type: AWS::AutoScaling::AutoScalingGroup
    Properties:
      MinSize: "0"
      MaxSize: "3"
      # Please REMOVE the next line if you want to avoid interfering
      # with existing capacity in the ASG
      DesiredCapacity: "1"
      LaunchTemplate:
        LaunchTemplateId: !Ref LaunchTemplate
        Version: !GetAtt LaunchTemplate.LatestVersionNumber
      VPCZoneIdentifier: !Split [ ",", !Sub "${Subnets}"]
    UpdatePolicy:
      AutoScalingRollingUpdate:
        MinInstancesInService: 1
        MaxBatchSize: 2
        PauseTime: PT10S