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# Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the License. A copy of the License is located at
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# http://aws.amazon.com/apache2.0/
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Description: Attempts to create a VPC and 3 subnets with automatically assigned CIDR ranged. It fails because the VPC is not large enough to house the subnets.

Resources:
  Vpc:
      Type: AWS::EC2::VPC
      Properties:
          CidrBlock: 10.0.0.0/24

  # Call the custom resource, specify 3 subnets of different sizes.
  # The resource will have a property called CidrBlocks with an array of 3 CIDR block definitions
  CidrFindr:
    Type: Custom::CidrFindr
    Properties:
      ServiceToken: !ImportValue CidrFindr
      VpcId: !Ref Vpc
      Sizes: [25, 26, 25] # Bigger than we can accomodate

  Subnet1:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: !Ref Vpc
      CidrBlock: !GetAtt CidrFindr.CidrBlock1
      
  Subnet2:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: !Ref Vpc
      CidrBlock: !GetAtt CidrFindr.CidrBlock2
      
  Subnet3:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: !Ref Vpc
      CidrBlock: !GetAtt CidrFindr.CidrBlock3