example.vpc.yml

AWSTemplateFormatVersion: 2010-09-09
Resources:
  privateVPC:
    Type: AWS::EC2::VPC
    Properties:
      CidrBlock: 172.31.0.0/16
      Tags:
        - Key: Name
          Value: !Ref AWS::StackName
  privateSubnet1:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: !Ref privateVPC
      AvailabilityZone: !Select [0, !GetAZs '']
      CidrBlock: 172.31.3.0/24
      MapPublicIpOnLaunch: false
      Tags:
        - Key: Name
          Value: !Sub '${AWS::StackName}-subnet-a'
  privateSubnet2:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: !Ref privateVPC
      AvailabilityZone: !Select [1, !GetAZs '']
      CidrBlock: 172.31.2.0/24
      MapPublicIpOnLaunch: false
      Tags:
        - Key: Name
          Value: !Sub '${AWS::StackName}-subnet-b'
  privateRouteTable:
    Type: AWS::EC2::RouteTable
    Properties:
      VpcId: !Ref privateVPC
  privateSubnet1RouteTableAssociation:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties:
      SubnetId: !Ref privateSubnet1
      RouteTableId: !Ref privateRouteTable
  privateSubnet2RouteTableAssociation:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties:
      SubnetId: !Ref privateSubnet2
      RouteTableId: !Ref privateRouteTable

Outputs:
  Vpc:
    Value: !Ref privateVPC
  Subnets:
    Value: !Join [',', [!Ref privateSubnet1, !Ref privateSubnet2]]
  SecurityGroup:
    Value: !GetAtt privateVPC.DefaultSecurityGroup