#
# This template demonstrates how to configure Amazon Route53 Application Recovery Controller Readiness Checks
# For a full description of how it works, please read
# https://aws.amazon.com/fr/blogs/aws/amazon-route-53-application-recovery-controller/
#

AWSTemplateFormatVersion: '2010-09-09'
Description: 'This template creates an Amazon Route53 Application Recovery Controller Readiness Check for the Tic Tac Toe demo app'
Parameters:
  Region1:
    Default: us-east-1
    Description: The region for the first cell
    Type: String 

  Region2:
    Default: us-west-2
    Description: The region for the second cell
    Type: String 

  LoadBalancer1: 
    Description: The ARN of the Application Load Balancer in cell 1
    Type: String 

  LoadBalancer2: 
    Description: The ARN of the Application Load Balancer in cell 2
    Type: String 

  AutoScalingGroup1: 
    Description: The ARN of the Auto Scaling Group in cell 1
    Type: String 

  AutoScalingGroup2: 
    Description: The ARN of the Auto Scaling Group in cell 2
    Type: String 

  DynamoDBTable:
    Description: The ARN of the DynamoDB Global Table
    Type: String 

  ProjectId:
    AllowedPattern: '[a-zA-Z][a-zA-Z0-9]*'
    ConstraintDescription: Must begin with a letter and contain only alphanumeric
      characters.
    Default: TicTacToe
    Description: The name of the project
    MaxLength: '64'
    MinLength: '1'
    Type: String

Resources:

#
# The Application Recovery Controller cells
#
  Cell1:
    Type: AWS::Route53RecoveryReadiness::Cell
    Properties:
      CellName: !Sub ${ProjectId}-Cell1-${Region1}

  Cell2:
    Type: AWS::Route53RecoveryReadiness::Cell
    Properties:
      CellName: !Sub ${ProjectId}-Cell2-${Region2}

#
# The Application Recovery Controller recovery groups
#
  RecoveryGroup:
    Type: AWS::Route53RecoveryReadiness::RecoveryGroup
    Properties:
      RecoveryGroupName: !Sub ${ProjectId}-RecoveryGroup
      Cells: 
        - !GetAtt Cell1.CellArn
        - !GetAtt Cell2.CellArn

#
# The Application Recovery Controller resource set
#

# the application load balancers 
  ResourceSetALB:
    Type: AWS::Route53RecoveryReadiness::ResourceSet
    Properties:
        ResourceSetName: !Sub ${ProjectId}-ResourceSet-ALB
        Resources: 
          - ResourceArn: !Ref LoadBalancer1
            ReadinessScopes:
              - !GetAtt Cell1.CellArn        
          - ResourceArn: !Ref LoadBalancer2
            ReadinessScopes:
              - !GetAtt Cell2.CellArn        
        
        ResourceSetType: AWS::ElasticLoadBalancingV2::LoadBalancer

# the auto scaling groups 
  ResourceSetASG:
    Type: AWS::Route53RecoveryReadiness::ResourceSet
    Properties:
        ResourceSetName: !Sub ${ProjectId}-ResourceSet-ASG
        Resources: 
          - ResourceArn: !Ref AutoScalingGroup1
            ReadinessScopes:
              - !GetAtt Cell1.CellArn        
          - ResourceArn: !Ref AutoScalingGroup2
            ReadinessScopes:
              - !GetAtt Cell2.CellArn        
        
        ResourceSetType: AWS::AutoScaling::AutoScalingGroup

# the DynamoDB table
  ResourceSetDynamoDB:
    Type: AWS::Route53RecoveryReadiness::ResourceSet
    Properties:
        ResourceSetName: !Sub ${ProjectId}-ResourceSet-DDB
        Resources: 
          - ResourceArn: !Ref DynamoDBTable
            ReadinessScopes:
              - !GetAtt Cell1.CellArn        
        
        ResourceSetType: AWS::DynamoDB::Table

#
# The Application Recovery Controller readiness checks
#

# the application load balancers 
  ReadinessCheckALB:
    Type: AWS::Route53RecoveryReadiness::ReadinessCheck
    Properties:
      ReadinessCheckName: !Sub ${ProjectId}-ReadinessCheck-ALB
      ResourceSetName: !Ref ResourceSetALB

# the auto scaling groups 
  ReadinessCheckASG:
    Type: AWS::Route53RecoveryReadiness::ReadinessCheck
    Properties:
      ReadinessCheckName: !Sub ${ProjectId}-ReadinessCheck-ASG
      ResourceSetName: !Ref ResourceSetASG

# the DynamoDB table
  ReadinessCheckDynamoDB:
    Type: AWS::Route53RecoveryReadiness::ReadinessCheck
    Properties:
      ReadinessCheckName: !Sub ${ProjectId}-ReadinessCheck-DynamoDB
      ResourceSetName: !Ref ResourceSetDynamoDB