【问题标题】:How Do I Specify a Security Group for Elastic Beanstalk Launch Configuration in CloudFormation Template?如何在 CloudFormation 模板中为 Elastic Beanstalk 启动配置指定安全组?
【发布时间】:2017-04-01 22:46:23
【问题描述】:

我在 CloudFormation 模板中定义了以下安全组:

"APIInstanceSG": {
  "Type": "AWS::EC2::SecurityGroup",
  "Properties": {
    "GroupDescription": "Security Group for Application EC2 Instances,
    "VpcId": "vpc-10a75377",
    "Tags": [{
      "Key": "Name",
      "Value": "APIInstanceSG" }
    }]
  }
}

我还定义了一个 Elastic Beanstalk 环境,其中包含以下选项设置:

{
  "Namespace": "aws:autoscaling:launchconfiguration",
  "OptionName": "SecurityGroups",
  "Value": { "Ref": "APIInstanceSG" }
}

当我使用此模板创建堆栈时,会在 CloudFormation 尝试创建 EB 环境之前创建安全组,但是当它尝试创建 EB 环境时,它会失败并出现以下错误:

配置验证异常:无效选项值:“sg-994fcbe4”(命名空间:“aws:autoscaling:launchconfiguration”,选项名称:“SecurityGroups”):安全组“sg-994fcbe4”不存在

sg-994fcbe4 是创建的安全组的 ID

Elastic Beanstalk 环境配置如下:

"AspectAPIEnv": {
  "Type": "AWS::ElasticBeanstalk::Environment",
  "Properties": {
    "ApplicationName": "application-name",
    "EnvironmentName": "environment-name",
    "SolutionStackName": "64bit Amazon Linux 2016.09 v3.1.0 running Node.js",
    "Tier": {
      "Name": "WebServer",
      "Type": "Standard"
    },
    "OptionSettings": [
      {
        "Namespace": "aws:autoscaling:launchconfiguration",
        "OptionName": "EC2KeyName",
        "Value": "ec2-key"
      },
      {
        "Namespace": "aws:autoscaling:launchconfiguration",
        "OptionName": "IamInstanceProfile",
        "Value": "aws-elasticbeanstalk-ec2-role"
      },
      {
        "Namespace": "aws:autoscaling:launchconfiguration",
        "OptionName": "ImageId",
        "Value": "ami-d8356acf"
      },
      {
        "Namespace": "aws:autoscaling:launchconfiguration",
        "OptionName": "InstanceType",
        "Value": "t2.micro"
      },
      {
        "Namespace": "aws:autoscaling:launchconfiguration",
        "OptionName": "SecurityGroups",
        "Value": { "Ref": "APIInstanceSG" }
      },
      {
        "Namespace": "aws:autoscaling:trigger",
        "OptionName": "UpperThreshold",
        "Value": "6000000"
      },
      {
        "Namespace": "aws:autoscaling:updatepolicy:rollingupdate",
        "OptionName": "MaxBatchSize",
        "Value": "1"
      },
      {
        "Namespace": "aws:autoscaling:updatepolicy:rollingupdate",
        "OptionName": "MinInstancesInService",
        "Value": "1"
      },
      {
        "Namespace": "aws:autoscaling:updatepolicy:rollingupdate",
        "OptionName": "RollingUpdateEnabled",
        "Value": "true"
      },
      {
        "Namespace": "aws:autoscaling:updatepolicy:rollingupdate",
        "OptionName": "RollingUpdateType",
        "Value": "Health"
      },
      {
        "Namespace": "aws:elasticbeanstalk:command",
        "OptionName": "BatchSize",
        "Value": "30"
      },
      {
        "Namespace": "aws:elasticbeanstalk:container:nodejs",
        "OptionName": "NodeVersion",
        "Value": "6.2.2"
      },
      {
        "Namespace": "aws:elasticbeanstalk:environment",
        "OptionName": "ServiceRole",
        "Value": "aws-elasticbeanstalk-service-role"
      },
      {
        "Namespace": "aws:elasticbeanstalk:healthreporting:system",
        "OptionName": "SystemType",
        "Value": "enhanced"
      },
      {
        "Namespace": "aws:elasticbeanstalk:managedactions",
        "OptionName": "ManagedActionsEnabled",
        "Value": "true"
      },
      {
        "Namespace": "aws:elasticbeanstalk:managedactions",
        "OptionName": "PreferredStartTime",
        "Value": "SUN:09:02"
      },
      {
        "Namespace": "aws:elasticbeanstalk:managedactions:platformupdate",
        "OptionName": "UpdateLevel",
        "Value": "minor"
      },
      {
        "Namespace": "aws:elb:healthcheck",
        "OptionName": "Interval",
        "Value": "10"
      },
      {
        "Namespace": "aws:elb:loadbalancer",
        "OptionName": "CrossZone",
        "Value": "true"
      },
      {
        "Namespace": "aws:elb:loadbalancer",
        "OptionName": "LoadBalancerHTTPPort",
        "Value": "80"
      },
      {
        "Namespace": "aws:elb:loadbalancer",
        "OptionName": "SecurityGroups",
        "Value": { "Ref": "APILoadBalancerSG" }
      },
      {
        "Namespace": "aws:elb:loadbalancer",
        "OptionName": "ManagedSecurityGroup",
        "Value": { "Ref": "APILoadBalancerSG" }
      },
      {
        "Namespace": "aws:elb:policies",
        "OptionName": "ConnectionDrainingEnabled",
        "Value": "true"
      }
    ],
    "Tags": [
      {
        "Key": "Name",
        "Value": "AspectAPIEnv"
      }
    ]
  },
  "DependsOn": "RDSInstance"
}

【问题讨论】:

  • 您确定启动配置与安全组位于同一 VPC 中?
  • 是的,所有实例都在 VPC 内
  • 您可以向我们展示您的 Beanstalk 环境资源的模板 sn-p 吗?
  • 好的,现在刚刚添加
  • 谢谢,我已经添加了答案。 @MarcYoung 在正确的轨道上,您的环境资源缺少 VPC 选项设置。

标签: amazon-web-services amazon-elastic-beanstalk amazon-cloudformation aws-security-group


【解决方案1】:

查看您的 AWS::ElasticBeanstalk::Environment 资源后,我能够重现您遇到的错误。正如 Marc Young 在对您的问题的评论中所建议的那样,您没有为您的环境指定 VPC。由于您的安全组位于 VPC 中,因此无法从不在同一 VPC 中的资源访问它。

要修复它,您必须将以下配置选项添加到您的环境中:

{
  "Namespace" : "aws:ec2:vpc",
  "OptionName" : "VPCId",
  "Value" : "vpc-10a75377"
},

如果您指定 VPC,使用更新的模板创建堆栈将失败,并显示一条错误消息,指出您还需要指定环境子网,因此您必须添加以下选项:

{
  "Namespace" : "aws:ec2:vpc",
  "OptionName" : "Subnets",
  "Value" : <insert the subnet for your instances here>
},
{
  "Namespace" : "aws:ec2:vpc",
  "OptionName" : "ELBSubnets",
  "Value" : <insert the subnet for your load balancer here>
}

您可以在Elastic Beanstalk CloudFormation sample templates 中查看 VPC 中 Beanstalk 应用程序的工作示例。

【讨论】:

    【解决方案2】:

    要克服这个问题:

    您需要从 AWS CLI 更改 EB 安全组,您无法从 AWS Web 控制台执行此操作。

    考虑到您已经拥有 AWS CLI installed,如果您想更改安全组,则需要执行此命令:

    aws elasticbeanstalk update-environment –environment-name –option-settings Namespace=aws:autoscaling:launchconfiguration,OptionName=SecurityGroups,Value=””
    

    Source

    【讨论】:

    • 我需要能够作为 cloudformation 模板的一部分来执行此操作
    • 那么设置value="" 应该清除分配给Env 的所有安全组吗?如果是这样,那对我不起作用。我只想删除 Beanstalk 自动生成的那个。
    【解决方案3】:

    您应该在 LC 定义中设置 DependsOn 属性,以确保在堆栈创建期间它存在于 SG 之前。否则你不能保证引用会起作用。

    "APIInstanceSG": {
      "Type": "AWS::EC2::SecurityGroup",
      "Properties": {
        "GroupDescription": "Security Group for Application EC2 Instances,
        "VpcId": "vpc-10a75377",
        "Tags": [{
          "Key": "Name",
          "Value": "APIInstanceSG" }
        }]
      },
      "DependsOn" : "APIInstanceSG"
    }
    

    http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-dependson.html

    【讨论】:

      【解决方案4】:

      在您的模板中,而不是

      "DependsOn" : "RDSInstance"
      

      写:

      "DependsOn": ["APIInstanceSG", "RDSInstance"]
      

      更多信息:http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-dependson.html

      【讨论】:

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