AWSTemplateFormatVersion: "2010-09-09"

Description: Sample template describing network resources for an example application. (uksb-1q9p31idr)

Parameters:
  AppVpcCidr:
    Description: Enter the IP range (CIDR notation) for VPC
    Type: String
    Default: 10.0.0.0/16

  AppPublicSubnet1Cidr:
    Description: Enter the IP range (CIDR notation) for the first public subnet
    Type: String
    Default: 10.0.10.0/24

  AppPublicSubnet2Cidr:
    Description: Enter the IP range (CIDR notation) for the second public subnet
    Type: String
    Default: 10.0.20.0/24

  AppNameTagValue:
    Description: Enter a value for AppNameTagValue
    Type: String
    Default: CloudFormationWorkshop

Resources:
  Vpc:
    Type: AWS::EC2::VPC
    Properties:
      CidrBlock: !Ref AppVpcCidr
      EnableDnsSupport: true
      EnableDnsHostnames: true
      Tags:
        - Key: CloudFormationLab
          Value: !Ref AppNameTagValue

  InternetGateway:
    Type: AWS::EC2::InternetGateway
    Properties:
      Tags:
        - Key: CloudFormationLab
          Value: !Ref AppNameTagValue

  VpcGatewayAttachment:
    Type: AWS::EC2::VPCGatewayAttachment
    Properties:
      VpcId: !Ref Vpc
      InternetGatewayId: !Ref InternetGateway

  PublicRouteTable:
    Type: AWS::EC2::RouteTable
    Properties:
      VpcId: !Ref Vpc
      Tags:
        - Key: Name
          Value: !Ref AppNameTagValue

  PublicRoute:
    Type: AWS::EC2::Route
    DependsOn: VpcGatewayAttachment
    Properties:
      RouteTableId: !Ref PublicRouteTable
      DestinationCidrBlock: 0.0.0.0/0
      GatewayId: !Ref InternetGateway

  PublicSubnet1:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: !Ref Vpc
      AvailabilityZone: !Select
        - 0
        - !GetAZs ''
      CidrBlock: !Ref AppPublicSubnet1Cidr
      MapPublicIpOnLaunch: true
      Tags:
        - Key: Name
          Value: !Ref AppNameTagValue

  PublicSubnet2:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: !Ref Vpc
      AvailabilityZone: !Select
        - 1
        - !GetAZs ''
      CidrBlock: !Ref AppPublicSubnet2Cidr
      MapPublicIpOnLaunch: true
      Tags:
        - Key: Name
          Value: !Ref AppNameTagValue

  PublicSubnet1RouteTableAssociation:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties:
      RouteTableId: !Ref PublicRouteTable
      SubnetId: !Ref PublicSubnet1

  PublicSubnet2RouteTableAssociation:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties:
      RouteTableId: !Ref PublicRouteTable
      SubnetId: !Ref PublicSubnet2

Outputs:
  VpcId:
    Description: The subnet ID to use for public web servers
    Value: !Ref Vpc
    Export:
      Name: AWS-CloudFormationWorkshop-VpcId

  SubnetId1:
    Description: The subnet ID to use for public web servers
    Value: !Ref 'PublicSubnet1'
    Export:
      Name: AWS-CloudFormationWorkshop-SubnetId1

  SubnetId2:
    Description: The subnet ID to use for public web servers
    Value: !Ref 'PublicSubnet2'
    Export:
      Name: AWS-CloudFormationWorkshop-SubnetId2