---
AWSTemplateFormatVersion: "2010-09-09"
Description: >
  AWS EC2 Good Template
Parameters:
  cidrBlockAllowedPattern:
    Type: String
    AllowedPattern: '^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\/([0-9]|[1-2][0-9]|3[0-2]))$'
  cidrBlockAllowedValues:
    Type: String
    AllowedValues:
      - '127.0.0.1/32'
      - '8.8.8.8/32'
  cidrBlockAllowedPatternValues:
    Type: String
    AllowedPattern: '^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\/([0-9]|[1-2][0-9]|3[0-2]))$'
    AllowedValues:
      - '127.0.0.1/32'
      - '8.8.8.8/32'
  cidrBlockSsm:
    Type: AWS::SSM::Parameter::Value<String>
    Default: /Infra/VpcCidr
  vpcTenancy:
    Type: String
    AllowedValues:
      - default
      - dedicated
Resources:
  myVpc1:
    Type: AWS::EC2::VPC
    Properties:
      CidrBlock: !Ref cidrBlockAllowedPattern
      InstanceTenancy: default
  myVpc2:
    Type: AWS::EC2::VPC
    Properties:
      InstanceTenancy: !Ref vpcTenancy
      CidrBlock: !Ref cidrBlockAllowedPattern
  myVpc3:
    Type: AWS::EC2::VPC
    Properties:
      InstanceTenancy: !Ref vpcTenancy
      CidrBlock: !Ref cidrBlockAllowedValues
  myVpc4:
    Type: AWS::EC2::VPC
    Properties:
      InstanceTenancy: !Ref vpcTenancy
      CidrBlock: !Ref cidrBlockAllowedPatternValues
  myVpc5:
    Type: AWS::EC2::VPC
    Properties:
      InstanceTenancy: dedicated
      CidrBlock: !Ref cidrBlockSsm
  mySubnet21:
    Type: AWS::EC2::Subnet
    Properties:
      CidrBlock:
        Fn::Select:
        - 0
        - !Cidr [!Ref cidrBlockAllowedPattern, 3, 16]
      VpcId: vpc-1234567
  mySubnet22:
    Type: AWS::EC2::Subnet
    Properties:
      CidrBlock: !Ref cidrBlockAllowedPattern
      VpcId: vpc-1234567