amazon-web-services - AWS Cloudformation - 向安全组导出规则添加条件

Question

如何向安全组资源中的 SecurityGroupIngress 规则添加条件？例如，如果环境参数设置为“prod”，它将同时打开端口 80 和 443，但如果设置为“test”，它将仅打开端口 80。

示例模板:

AWSTemplateFormatVersion: 2010-09-09
Parameters:
  EnvType:
    Description: Environment type.
    Default: test
    Type: String
    AllowedValues:
      - prod
      - test
    ConstraintDescription: must specify prod or test.
Conditions:
  CreateProdResources: !Equals 
    - Ref: EnvType
    - prod
Resources:
  WebSecurityGroup:
    Type: 'AWS::EC2::SecurityGroup'
    Properties:
      GroupDescription: Web server
      GroupName: web
      VpcId: vpc-abc01234
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: 80
          ToPort: 80
          CidrIp: 0.0.0.0/0
        - IpProtocol: tcp
          FromPort: 443
          ToPort: 443
          CidrIp: 0.0.0.0/0

Answer 1

您已经定义了所需的条件，现在您可以使用内在 If函数和 NoValue伪参数:

  WebSecurityGroup:
    Type: 'AWS::EC2::SecurityGroup'
    Properties:
      GroupDescription: Web server
      GroupName: web
      VpcId: vpc-abc01234
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: 80
          ToPort: 80
          CidrIp: 0.0.0.0/0
        - !If
          - CreateProdResources
          - IpProtocol: tcp
            FromPort: 443
            ToPort: 443
            CidrIp: 0.0.0.0/0
          - !Ref AWS::NoValue