如何在CloudFormation模板中为Elastic Beanstalk启动配置指定安全组？

Question

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OptionSettings中的以下内容:

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

当我使用此模板创建堆栈时,安全组是在CloudFormation尝试创建EB环境之前创建的,但是当它尝试创建EB环境时,它会因以下错误而崩溃:

配置验证异常:无效的选项值:'sg-994fcbe4'(命名空间:'aws:autoscaling:launchconfiguration',OptionName:'SecurityGroups'):安全组'sg-994fcbe4'不存在

sg-994fcbe4是已创建的安全组的ID

Elastic Beanstalk Environment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"
}

Answer 1

在查看您的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:

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

如果指定VPC,则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示例模板中检查VPC中Beanstalk应用程序的工作示例.