My Lab Stack for a Single Web Server Cloudformation Template

MyLabStack.yaml

# A web server (ports 80, 22 opened)
# on a subnet 10.1.10.0/24
# in a VPC 10.1.0.0/16
# in Region us-east-1a (N Virginia)

# Change the source IP in WebSecurityGroup to your testing IP, line 83 and 88
# Change the SSH key to yours on line 98

AWSTemplateFormatVersion: "2010-09-09"
Resources:
   LabVPC:
      Type: AWS::EC2::VPC
      Properties:
         CidrBlock: 10.1.0.0/16
         EnableDnsHostnames: true
         EnableDnsSupport: true
         Tags:
            - Key: Name
              Value: my-lab-vpc
   
   PublicSubnet:
      Type: AWS::EC2::Subnet
      Properties:
         VpcId: 
            Ref: LabVPC
         CidrBlock: 10.1.10.0/24
         MapPublicIpOnLaunch: true
         Tags:
            - Key: Name
              Value: my-lab-public-subnet

   InternetGateway:
      Type: AWS::EC2::InternetGateway
      Properties:
         Tags:
            - Key: Name
              Value: my-lab-igw

   AttachGateway:
      Type: AWS::EC2::VPCGatewayAttachment
      Properties:
         VpcId:
            Ref: LabVPC
         InternetGatewayId:
            Ref: InternetGateway

   LabPublicRouteTable:
      Type: AWS::EC2::RouteTable
      Properties:
         VpcId:
            Ref: LabVPC
         Tags:
            - Key: Name
              Value: my-lab-public-rt

   AttachInternetGatewayToRouteTable:
      Type: AWS::EC2::Route
      Properties:
         RouteTableId:
            Ref: LabPublicRouteTable
         DestinationCidrBlock: 0.0.0.0/0
         GatewayId:
            Ref: InternetGateway

   AssociateSubnet:
      Type: AWS::EC2::SubnetRouteTableAssociation
      Properties:
         RouteTableId:
            Ref: LabPublicRouteTable
         SubnetId:
            Ref: PublicSubnet 

   WebServerSecurityGroup:
      Type: AWS::EC2::SecurityGroup
      Properties:
         GroupDescription: SecurityGroup for Lab Web Server
         GroupName: Lab Web Servers
         VpcId:
            Ref: LabVPC
         SecurityGroupIngress:
            - IpProtocol: tcp
              FromPort: 80
              ToPort: 80
              CidrIp: 0.0.0.0/0
            - IpProtocol: tcp
              FromPort: 22
              ToPort: 22
              CidrIp: 0.0.0.0/0
         Tags:
            - Key: Name
              Value: my-lab-web-sg

   LaunchWebServerInstance:
      Type: AWS::EC2::Instance
      Properties:
         ImageId: ami-0b69ea66ff7391e80
         KeyName: my-keypair-for-lab
         InstanceType: t2.micro
         SecurityGroupIds: 
            - !GetAtt "WebServerSecurityGroup.GroupId"
         SubnetId:
            Ref: PublicSubnet
         Tags:
            - Key: Name
              Value: my-lab-web-server