当健康检查变红时，Cloudformation Elastic Beanstalk 添加 cloudwatch 警报？

Question

我有一个在 AWS 上运行的 CloudFormation Elastic Beanstalk 应用程序。

我想在任何应用服务器运行状况变为红色时发出警报，但我在这里看不到任何选项：https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/command-options-general.html#command-options-general-ec2vpc

有没有办法创建“AWS::CloudWatch::Alarm”资源并将其链接到我的 Elastic Beanstalk 应用程序？

Answer 1

当然 - 在您的应用程序根目录中创建一个 .ebextensions 文件夹，并在其中放置一个定义警报的 .config 文件。例如，

Resources:
  HealthyHostCountAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      ActionsEnabled: true
      AlarmActions:
      - Fn::Sub : "arn:aws:sns:${AWS::Region}:${AWS::AccountId}:mySns"
      AlarmDescription:
        Fn::Sub : "No more healthy hosts in ${AWSEBEnvironmentName}"
      ComparisonOperator: LessThanThreshold
      Dimensions:
      - Name: TargetGroup
        Value: 
          Fn::GetAtt : ["AWSEBV2LoadBalancerTargetGroup", "TargetGroupFullName" ]
      - Name: LoadBalancer
        Value:
          Fn::GetAtt : [ "AWSEBV2LoadBalancer", "LoadBalancerFullName" ]
      EvaluationPeriods: 1
      MetricName: HealthyHostCount
      Namespace: AWS/ApplicationELB
      OKActions:
      - Fn::Sub : "arn:aws:sns:${AWS::Region}:${AWS::AccountId}:mySns"
      Period: 300
      Statistic: Average
      Threshold: 1
      TreatMissingData: ignore
      Unit: Count