vpc.yaml

AWSTemplateFormatVersion: "2010-09-09"
Description: VPC Configuration
Resources:
  VPC:
    Type: AWS::EC2::VPC
    Properties:
      CidrBlock: 10.0.0.0/16
      EnableDnsHostnames: true
      Tags:
        - Key: Name
          Value: myVPC
  
  PublicSubnet:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: !Ref VPC
      CidrBlock: 10.0.0.0/24
      AvailabilityZone: "ap-northeast-2a"
      MapPublicIpOnLaunch: true
      Tags:
        - Key: Name
          Value: public subnet
  PrivateSubnet:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: !Ref VPC
      CidrBlock: 10.0.10.0/24
      AvailabilityZone: "ap-northeast-2c"
      Tags:
        - Key: Name
          Value: private subnet
  
  IGW:
    Type: AWS::EC2::InternetGateway
    Properties:
      Tags:
        - Key: Name
          Value: myigw
  Attachigw:
    Type: AWS::EC2::VPCGatewayAttachment
    Properties:
      InternetGatewayId: !Ref IGW
      VpcId: !Ref VPC
  
  EIP:
    Type: AWS::EC2::EIP
  NAT:
    Type: AWS::EC2::NatGateway
    DependsOn: Attachigw
    Properties:
      AllocationId: !GetAtt EIP.AllocationId
      SubnetId: !Ref PublicSubnet
  
  PublicRT:
    Type: AWS::EC2::RouteTable
    Properties:
      VpcId: !Ref VPC
      Tags:
        - Key: Name
          Value: Public RT
  PublicRoute:
    Type: AWS::EC2::Route
    DependsOn: Attachigw
    Properties:
      RouteTableId: !Ref PublicRT
      DestinationCidrBlock: 0.0.0.0/0
      GatewayId: !Ref IGW
  PublicSubnetRTAssociation:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties:
      RouteTableId: !Ref PublicRT
      SubnetId: !Ref PublicSubnet
  
  PrivateRT:
    Type: AWS::EC2::RouteTable
    Properties:
      VpcId: !Ref VPC
      Tags:
        - Key: Name
          Value: Private RT
  PrivateRoute:
    Type: AWS::EC2::Route
    DependsOn: Attachigw
    Properties:
      RouteTableId: !Ref PrivateRT
      DestinationCidrBlock: 0.0.0.0/0
      NatGatewayId: !Ref NAT
  PrivateSubnetRTAssociation:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties:
      RouteTableId: !Ref PrivateRT
      SubnetId: !Ref PrivateSubnet