Resources:
  PubPrivateVPC:
    Type: 'AWS::EC2::VPC'
    Properties:
      CidrBlock: 192.168.0.0/24
      Tags:
        - Key: Name
          Value: Liu-Cloud9-Vpc
  PublicSubnet1:
    Type: 'AWS::EC2::Subnet'
    Properties:
      VpcId: !Ref PubPrivateVPC
      AvailabilityZone: !Select 
        - 0
        - !GetAZs ''
      CidrBlock: 192.168.0.0/24
      MapPublicIpOnLaunch: true
      Tags:
        - Key: Name
          Value: pub-subnet
  InternetGateway:
    Type: 'AWS::EC2::InternetGateway'
    Properties:
      Tags:
        - Key: Name
          Value: Liu-cloud9-igw

  GatewayToInternet:
    Type: 'AWS::EC2::VPCGatewayAttachment'
    Properties:
      VpcId: !Ref PubPrivateVPC
      InternetGatewayId: !Ref InternetGateway
  PublicRouteTable:
    Type: 'AWS::EC2::RouteTable'
    Properties:
      VpcId: !Ref PubPrivateVPC
  PublicRoute:
    Type: 'AWS::EC2::Route'
    DependsOn: GatewayToInternet
    Properties:
      RouteTableId: !Ref PublicRouteTable
      DestinationCidrBlock: 0.0.0.0/0
      GatewayId: !Ref InternetGateway
  PublicSubnet1RouteTableAssociation:
    Type: 'AWS::EC2::SubnetRouteTableAssociation'
    Properties:
      SubnetId: !Ref PublicSubnet1
      RouteTableId: !Ref PublicRouteTable
  Cloud9Environment:
    Type: 'AWS::Cloud9::EnvironmentEC2'
    Properties:
      Description: Use Cloud 9 as the default environment to launch your operations.
      InstanceType: t2.micro
      Name: Liu-Cloud9
      SubnetId: !Ref PublicSubnet1