AWSTemplateFormatVersion: '2010-09-09'
Description: 'AWS CloudFormation Windows AMI Lookup Example Template: Demonstrates
  how to dynamically get the most recent Windows AMI ID. This template provisions
  an EC2 instance with an AMI ID that is based on the selected instance type and Windows
  OS version. **WARNING** This template creates an Amazon EC2 instance. You will be
  billed for the AWS resources used if you create a stack from this template.'
Parameters:
  InstanceType:
    Description: EC2 instance type
    Type: String
    Default: t2.small
    AllowedValues:
      - t1.micro
      - t2.micro
      - t2.small
      - t2.medium
      - m1.small
      - m1.medium
      - m1.large
      - m1.xlarge
      - m2.xlarge
      - m2.2xlarge
      - m2.4xlarge
      - m3.medium
      - m3.large
      - m3.xlarge
      - m3.2xlarge
      - c1.medium
      - c1.xlarge
      - c3.large
      - c3.xlarge
      - c3.2xlarge
      - c3.4xlarge
      - c3.8xlarge
      - c4.large
      - c4.xlarge
      - c4.2xlarge
      - c4.4xlarge
      - c4.8xlarge
      - g2.2xlarge
      - r3.large
      - r3.xlarge
      - r3.2xlarge
      - r3.4xlarge
      - r3.8xlarge
      - i2.xlarge
      - i2.2xlarge
      - i2.4xlarge
      - i2.8xlarge
      - d2.xlarge
      - d2.2xlarge
      - d2.4xlarge
      - d2.8xlarge
      - hi1.4xlarge
      - hs1.8xlarge
      - cr1.8xlarge
      - cc2.8xlarge
      - cg1.4xlarge
    ConstraintDescription: Must be a valid EC2 instance type.
  WindowsVersion:
    Description: Windows Version
    Type: String
    Default: Windows Server 2016 Base English 64-bit
    AllowedValues:
      - Windows Server 2008 SP2 English 32-bit
      - Windows Server 2008 SP2 English 64-bit
      - Windows Server 2008 R2 English 64-bit
      - Windows Server 2012 RTM English 64-bit
      - Windows Server 2012 R2 English 64-bit
      - Windows Server 2016 Base English 64-bit
    ConstraintDescription: Must be a valid Windows version.
  ModuleName:
    Description: The name of the JavaScript file
    Type: String
    Default: amilookup-win
  S3Bucket:
    Description: The name of the bucket that contains your packaged source
    Type: String
    Default: aws-bigdata-blog
  S3Key:
    Description: The name of the ZIP package
    Type: String
    Default: artifacts/aws-blog-emr-ranger
  ProjectVersion:
    Default: 2.0
    Description: Project version
    Type: String
    AllowedValues:
      - 2.0
      - beta
Resources:
#  SampleInstance:
#    Type: AWS::EC2::Instance
#    Properties:
#      InstanceType: !Ref 'InstanceType'
#      ImageId: !GetAtt 'AMIInfo.Id'
  AMIInfo:
    Type: Custom::AMIInfo
    Properties:
      ServiceToken: !GetAtt 'AMIInfoFunction.Arn'
      Region: !Ref 'AWS::Region'
      OSName: !Ref 'WindowsVersion'
  AMIInfoFunction:
    Type: AWS::Lambda::Function
    Properties:
      Code:
        S3Bucket: !Ref 'S3Bucket'
        S3Key: !Join ['', [!Ref 'S3Key', '/' , !Ref 'ProjectVersion', '/amilookup-win.zip']]
      Handler: !Join
        - ''
        - - !Ref 'ModuleName'
          - .handler
      Role: !GetAtt 'LambdaExecutionRole.Arn'
      Runtime: nodejs12.x
      Timeout: '30'
  LambdaExecutionRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Effect: Allow
            Principal:
              Service:
                - lambda.amazonaws.com
            Action:
              - sts:AssumeRole
      Path: /
      Policies:
        - PolicyName: root
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              - Effect: Allow
                Action:
                  - logs:CreateLogGroup
                  - logs:CreateLogStream
                  - logs:PutLogEvents
                Resource: arn:aws:logs:*:*:*
              - Effect: Allow
                Action:
                  - ec2:DescribeImages
                Resource: '*'
Outputs:
  AMIID:
    Description: The Amazon EC2 instance AMI ID.
    Value: !GetAtt 'AMIInfo.Id'