vpc.yaml

AWSTemplateFormatVersion: 2010-09-09
Description: Hands-on template for VPC

#------------------------------------------------------
#  AWS CLIの実行の仕方
#  aws cloudformation create-stack --stack-name handson-cfn --template-body file://vpc.yaml
#
#  スタック名： handson-cfn
#
#  % cfn-lint vpc.yaml       
#   W3005 Obsolete DependsOn on resource (CFnVPCIGW), dependency already enforced by a "Ref" at Resources/PublicRoute/Properties/GatewayId/Ref
#   vpc.yaml:96:5
#  cfn-lintで文法チェックコマンドを実行すると上記のエラーがでますが、
#  本番は、VPCからEC2、RDS、ELBまで動作するので問題ないです。
#------------------------------------------------------



Resources:
#------------------------------------------------------
#  VPC
#------------------------------------------------------
  CFnVPC:
    Type: AWS::EC2::VPC
    Properties:
      CidrBlock: 10.0.0.0/16
      InstanceTenancy: default
      EnableDnsSupport: true
      EnableDnsHostnames: true
      Tags:
        - Key: Name
          Value: handson-cfn

  PublicSubnet1:
    Type: AWS::EC2::Subnet
    Properties:
      CidrBlock: 10.0.0.0/24
      VpcId: !Ref CFnVPC
      AvailabilityZone: !Select [ 0, !GetAZs ]
      MapPublicIpOnLaunch: true
      Tags:
        - Key: Name
          Value: PublicSubnet1

  PublicSubnet2:
    Type: AWS::EC2::Subnet
    Properties:
      CidrBlock: 10.0.1.0/24
      VpcId: !Ref CFnVPC
      AvailabilityZone: !Select [ 1, !GetAZs ]
      MapPublicIpOnLaunch: true
      Tags:
        - Key: Name
          Value: PublicSubnet2

  PrivateSubnet1:
    Type: AWS::EC2::Subnet
    Properties:
      CidrBlock: 10.0.3.0/24
      VpcId: !Ref CFnVPC
      AvailabilityZone: !Select [ 0, !GetAZs ]
      Tags:
        - Key: Name
          Value: PrivateSubnet1

  PrivateSubnet2:
    Type: AWS::EC2::Subnet
    Properties:
      CidrBlock: 10.0.4.0/24
      VpcId: !Ref CFnVPC
      AvailabilityZone: !Select [ 1, !GetAZs ]
      Tags:
        - Key: Name
          Value: PrivateSubnet2

#------------------------------------------------------
#  インターネットゲートウェイ
#------------------------------------------------------
  CFnVPCIGW:
    Type: AWS::EC2::InternetGateway
    Properties: 
      Tags:
        - Key: Name
          Value: handson-cfn

  CFnVPCIGWAttach:
    Type: AWS::EC2::VPCGatewayAttachment
    Properties: 
      InternetGatewayId: !Ref CFnVPCIGW
      VpcId: !Ref CFnVPC
#------------------------------------------------------
#  ルートテーブルをパブリックサブネットにアタッチ
#------------------------------------------------------

  PublicRouteTable:
    Type: AWS::EC2::RouteTable
    Properties:
      VpcId: !Ref CFnVPC
      Tags:
        - Key: Name
          Value: Public Route

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

  PublicSubnet1Association:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties:
      SubnetId: !Ref PublicSubnet1
      RouteTableId: !Ref PublicRouteTable

  PublicSubnet2Association:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties:
      SubnetId: !Ref PublicSubnet2
      RouteTableId: !Ref PublicRouteTable

#------------------------------------------------------
#  Outputsセクション
#------------------------------------------------------
Outputs:
  VPCID:
    Description: VPC ID
    Value: !Ref CFnVPC
    Export:
      Name: !Sub ${AWS::StackName}-VPCID

  PublicSubnet1:
    Description: PublicSubnet1
    Value: !Ref PublicSubnet1
    Export:
      Name: !Sub ${AWS::StackName}-PublicSubnet1

  PublicSubnet2:
    Description: PublicSubnet2
    Value: !Ref PublicSubnet2
    Export:
      Name: !Sub ${AWS::StackName}-PublicSubnet2

  PrivateSubnet1:
    Description: PrivateSubnet1
    Value: !Ref PrivateSubnet1
    Export:
      Name: !Sub ${AWS::StackName}-PrivateSubnet1

  PrivateSubnet2:
    Description: PrivateSubnet2
    Value: !Ref PrivateSubnet2
    Export:
      Name: !Sub ${AWS::StackName}-PrivateSubnet2