Difference between revisions of "AWS::CloudWatch::Alarm"

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#redirect [[CloudWatch]]
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https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cw-alarm.html
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*<code>[[AWS::CloudWatch::AnomalyDetector]]</code>
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===Autoscaling===
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<ref>https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-cloudwatch.html</ref>
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<pre> AppScaleUpPolicy:
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    Type: AWS::AutoScaling::ScalingPolicy
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    Properties:
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      AdjustmentType: ChangeInCapacity
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      AutoScalingGroupName: !Ref DeployAppASG
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      Cooldown: '60'
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      ScalingAdjustment: 1</pre>
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<pre>AppScaleDownPolicy:
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    Type: AWS::AutoScaling::ScalingPolicy
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    Properties:
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      AdjustmentType: ChangeInCapacity
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      AutoScalingGroupName: !Ref DeployAppASG
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      Cooldown: '300'
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      ScalingAdjustment: -1</pre>
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=== CPU alarm ===
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CPUAlarmHigh:
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    Type: [[AWS::CloudWatch::Alarm]]
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    Properties:
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      AlarmDescription: Scale-up if CPU > 80% for 5 minutes
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      MetricName: CPUUtilization
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      Namespace: AWS/EC2
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      Statistic: Average
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      Period: 300
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      EvaluationPeriods: 2
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      Threshold: 80
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      [[AlarmActions:]] [!Ref AppScaleUpPolicy]
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      Dimensions:
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      - Name: AutoScalingGroupName
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        Value: !Ref DeployAppASG
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      ComparisonOperator: GreaterThanThreshold
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https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cw-alarm.html
 +
 
 +
<pre> CPUAlarmLow:
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    Type: AWS::CloudWatch::Alarm
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    Properties:
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      AlarmDescription: Scale-down if CPU < 60% for 5 minutes
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      MetricName: CPUUtilization
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      Namespace: AWS/EC2
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      Statistic: Average
 +
      Period: 300
 +
      EvaluationPeriods: 2
 +
      Threshold: 80
 +
      AlarmActions: [!Ref AppScaleDownPolicy]
 +
      Dimensions:
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      - Name: AutoScalingGroupName
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        Value: !Ref DeployAppASG
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      ComparisonOperator: LessThanThreshold</pre>
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== [[SNS]] ==
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<ref>https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-sns.html</ref>
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MySNSTopic:
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  Type: [[AWS::SNS::Topic]]
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  Properties:
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    Subscription:
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    - Endpoint: "add valid email address"
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      Protocol: email
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== See also ==
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* {{Type AWS}}
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* {{CloudWatch}}
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 +
[[Category:AWS]]

Latest revision as of 10:46, 29 September 2021

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cw-alarm.html

Autoscaling[edit]

[1] 

 AppScaleUpPolicy:
    Type: AWS::AutoScaling::ScalingPolicy
    Properties:
      AdjustmentType: ChangeInCapacity
      AutoScalingGroupName: !Ref DeployAppASG
      Cooldown: '60'
      ScalingAdjustment: 1
AppScaleDownPolicy:
    Type: AWS::AutoScaling::ScalingPolicy
    Properties:
      AdjustmentType: ChangeInCapacity
      AutoScalingGroupName: !Ref DeployAppASG
      Cooldown: '300'
      ScalingAdjustment: -1

CPU alarm[edit]

CPUAlarmHigh:
   Type: AWS::CloudWatch::Alarm
   Properties:
     AlarmDescription: Scale-up if CPU > 80% for 5 minutes
     MetricName: CPUUtilization
     Namespace: AWS/EC2
     Statistic: Average
     Period: 300
     EvaluationPeriods: 2
     Threshold: 80
     AlarmActions: [!Ref AppScaleUpPolicy]
     Dimensions:
     - Name: AutoScalingGroupName
       Value: !Ref DeployAppASG
     ComparisonOperator: GreaterThanThreshold

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cw-alarm.html 

 CPUAlarmLow:
    Type: AWS::CloudWatch::Alarm
    Properties:
      AlarmDescription: Scale-down if CPU < 60% for 5 minutes
      MetricName: CPUUtilization
      Namespace: AWS/EC2
      Statistic: Average
      Period: 300
      EvaluationPeriods: 2
      Threshold: 80
      AlarmActions: [!Ref AppScaleDownPolicy]
      Dimensions:
      - Name: AutoScalingGroupName
        Value: !Ref DeployAppASG
      ComparisonOperator: LessThanThreshold

SNS[edit]

[2] 

MySNSTopic:
 Type: AWS::SNS::Topic
 Properties:
   Subscription:
   - Endpoint: "add valid email address"
     Protocol: email

See also[edit]

  • ↑ https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-cloudwatch.html
  • ↑ https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-sns.html
    • Retrieved from "https://www.wikieduonline.com/index.php?title=AWS::CloudWatch::Alarm&oldid=87553"

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