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

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https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cw-alarm.html
 
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cw-alarm.html
  
 +
*<code>[[AWS::CloudWatch::AnomalyDetector]]</code>
 +
 +
===Autoscaling===
 +
<ref>https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-cloudwatch.html</ref>
 +
 +
<pre> AppScaleUpPolicy:
 +
    Type: AWS::AutoScaling::ScalingPolicy
 +
    Properties:
 +
      AdjustmentType: ChangeInCapacity
 +
      AutoScalingGroupName: !Ref DeployAppASG
 +
      Cooldown: '60'
 +
      ScalingAdjustment: 1</pre>
 +
 +
<pre>AppScaleDownPolicy:
 +
    Type: AWS::AutoScaling::ScalingPolicy
 +
    Properties:
 +
      AdjustmentType: ChangeInCapacity
 +
      AutoScalingGroupName: !Ref DeployAppASG
 +
      Cooldown: '300'
 +
      ScalingAdjustment: -1</pre>
 +
 +
=== CPU alarm ===
 +
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
 +
 +
<pre> 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</pre>
 +
 +
== [[SNS]] ==
 +
<ref>https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-sns.html</ref>
 +
 +
MySNSTopic:
 +
  Type: [[AWS::SNS::Topic]]
 +
  Properties:
 +
    Subscription:
 +
    - Endpoint: "add valid email address"
 +
      Protocol: email
  
 
== See also ==
 
== See also ==
 +
* {{Type AWS}}
 
* {{CloudWatch}}
 
* {{CloudWatch}}
  
 
[[Category:AWS]]
 
[[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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