Lambda-School-Labs/prismatopia

AWSTemplateFormatVersion: "2010-09-09"
Description: Hosted zone for a non-production environment

Parameters:
  ApplicationName:
    Type: String
    Description: The name of the application
    AllowedPattern: ^[a-z0-9\-]*$

  EnvironmentName:
    Type: String
    Description: The name of the application environment
    AllowedPattern: ^[a-z0-9\-]*$

  ApplicationDomainNamespace:
    Type: String
    Description: The DNS domain namespace for the application (e.g. mycoolapplication.com)
    AllowedPattern: ^[a-z0-9\-\.]*$

Conditions:
  IsNotProductionEnvironment: !Not [!Equals [ !Ref EnvironmentName, production ]]

Resources:
  # Only create if this is a non-production environment, the production resource was already created
  EnvironmentHostedZone:
    Type: "AWS::Route53::HostedZone"
    Condition: IsNotProductionEnvironment
    Properties:
      HostedZoneConfig:
        Comment: !Sub Hosted zone for the ${EnvironmentName} environment of ${ApplicationName}
      Name: !Sub "${EnvironmentName}.${ApplicationDomainNamespace}"

  # Add NS records so the production hosted zone delegates to the environment subdomain
  ProductionHostedZoneRecordSet:
    Type: 'AWS::Route53::RecordSet'
    Condition: IsNotProductionEnvironment
    Properties:
        HostedZoneId:
          Fn::ImportValue:
            !Sub ${ApplicationName}-production-HostedZone
        Name: !Sub "${EnvironmentName}.${ApplicationDomainNamespace}."
        Type: NS
        TTL: '30'
        ResourceRecords: !GetAtt EnvironmentHostedZone.NameServers

  # Only create if this is a non-production environment, the production resource was already created
  PrivateNamespace:
    Type: AWS::ServiceDiscovery::PrivateDnsNamespace
    Condition: IsNotProductionEnvironment
    Properties:
        Name: !Sub private.${EnvironmentName}.${ApplicationDomainNamespace}
        Vpc:
          Fn::ImportValue:
            !Sub ${ApplicationName}-VPCID

Outputs:
  HostedZone:
    Description: HostedZone ID for the non-production application environment
    Condition: IsNotProductionEnvironment
    Value: !Ref EnvironmentHostedZone
    Export:
      Name: !Sub ${ApplicationName}-${EnvironmentName}-HostedZone

  PrivateNamespace:
    Description: Private namespace for the application environment
    Condition: IsNotProductionEnvironment
    Value: !Ref PrivateNamespace
    Export:
      Name: !Sub ${ApplicationName}-${EnvironmentName}-PrivateNamespace