Cloudformation_practice_Network_beta.yaml

# VPC
AWSTemplateFormatVersion: 2010-09-09
Resources:
  VPC:
    Type: "AWS::EC2::VPC"
    Properties:
      CidrBlock: 10.0.0.0/16
      EnableDnsSupport: true
      EnableDnsHostnames: true
      InstanceTenancy: "default"
      Tags:
        - Key: Name
          Value: cfn-test-VPC
  PublicSubnet1:
    Type: 'AWS::EC2::Subnet'
    Properties:
      CidrBlock: 10.0.1.0/24
      MapPublicIpOnLaunch: false
      AvailabilityZone: ap-northeast-1a
      Tags:
        - Key: Name
          Value: cfn-test-PublicSubnet1
      VpcId: !Ref VPC
Outputs:
  MyVPC:
    Value: !Ref VPC
    Export:
      Name: cfn-test-VPC
  PublicSubnet1:
    Value: !Ref PublicSubnet1
    Export:
      Name: cfn-test-PublicSubnet1

Cloudformation_practice_SecurityGroup_beta.yaml

# SecurityGroup
AWSTemplateFormatVersion: 2010-09-09
Resources:
#    WEBServer SecurityGroup
  SecurityGroupForWeb:
    Type: 'AWS::EC2::SecurityGroup'
    Properties:
      GroupName: cfn-test-Web-SG
      GroupDescription: >-
        SG for Web Server
#    Inbound SecurityGroup
      SecurityGroupIngress:
        - CidrIp: 0.0.0.0/0
          Description: SSH
          FromPort: 22
          IpProtocol: tcp
          ToPort: 22
        - CidrIp: 0.0.0.0/0
          Description: HTTP
          FromPort: 80
          IpProtocol: tcp
          ToPort: 80
        - CidrIp: 0.0.0.0/0
          Description: HTTPS
          FromPort: 443
          IpProtocol: tcp
          ToPort: 443
      VpcId: !ImportValue 'cfn-test-VPC'
      Tags:
        - Key: Name
          Value: cfn-test-Web-SG
Outputs:
  SecurityGroupForWeb:
    Value: !Ref SecurityGroupForWeb
    Export:
      Name: cfn-test-Web-SG