AWSTemplateFormatVersion: '2010-09-09'
Description: Create the Amazon VPC for the GitHub Quick Start.
Parameters:
  KeyPairName:
    Description: Public/private key pair
    Type: AWS::EC2::KeyPair::KeyName
  SubnetCIDR:
    Description: CIDR Block for the Public Subnet
    Type: String
    Default: 10.0.0.0/19
    AllowedPattern: '[a-zA-Z0-9]+\..+'
  VPCCIDR:
    Description: CIDR Block for the VPC
    Type: String
    Default: 10.0.0.0/16
    AllowedPattern: '[a-zA-Z0-9]+\..+'
Resources:
  VPC:
    Type: AWS::EC2::VPC
    Properties:
      CidrBlock: !Ref 'VPCCIDR'
      EnableDnsHostnames: 'true'
      Tags:
        - Key: Application
          Value: !Ref 'AWS::StackName'
        - Key: Network
          Value: Public
  PublicSubnet:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: !Ref 'VPC'
      CidrBlock: !Ref 'SubnetCIDR'
      MapPublicIpOnLaunch: 'true'
      AvailabilityZone: !Select
        - 1
        - !GetAZs ''
      Tags:
        - Key: Application
          Value: !Ref 'AWS::StackName'
        - Key: Network
          Value: Public
        - Key: Role
          Value: Public Subnet
  InternetGateway:
    Type: AWS::EC2::InternetGateway
    Properties:
      Tags:
        - Key: Application
          Value: !Ref 'AWS::StackName'
        - Key: Network
          Value: Public
  AttachGateway:
    Type: AWS::EC2::VPCGatewayAttachment
    Properties:
      VpcId: !Ref 'VPC'
      InternetGatewayId: !Ref 'InternetGateway'
  PublicRouteTable:
    Type: AWS::EC2::RouteTable
    Properties:
      VpcId: !Ref 'VPC'
      Tags:
        - Key: Application
          Value: !Ref 'AWS::StackName'
        - Key: Network
          Value: Public Subnet
  PublicRoute:
    Type: AWS::EC2::Route
    Properties:
      RouteTableId: !Ref 'PublicRouteTable'
      DestinationCidrBlock: '0.0.0.0/0'
      GatewayId: !Ref 'InternetGateway'
  PublicSubnetRouteTableAssociation:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties:
      SubnetId: !Ref 'PublicSubnet'
      RouteTableId: !Ref 'PublicRouteTable'
Outputs:
  VPCID:
    Value: !Ref 'VPC'
    Description: VPCID
  SubnetId:
    Value: !Ref 'PublicSubnet'
    Description: Subnet ID for the public subnet