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

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===Autoscaling===
 
===Autoscaling===
−
*https://www.agilepartner.net/en/aws-cloudformation-part-6/
+
<ref>https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-cloudwatch.html</ref>
  
 
<pre> AppScaleUpPolicy:
 
<pre> AppScaleUpPolicy:
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       ScalingAdjustment: -1</pre>
 
       ScalingAdjustment: -1</pre>
  
−
===CPU alarm===
+
=== CPU alarm ===
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<pre>CPUAlarmHigh:
+
CPUAlarmHigh:
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     Type: AWS::CloudWatch::Alarm
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     Type: [[AWS::CloudWatch::Alarm]]
 
     Properties:
 
     Properties:
 
       AlarmDescription: Scale-up if CPU > 80% for 5 minutes
 
       AlarmDescription: Scale-up if CPU > 80% for 5 minutes
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       - Name: AutoScalingGroupName
 
       - Name: AutoScalingGroupName
 
         Value: !Ref DeployAppASG
 
         Value: !Ref DeployAppASG
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       ComparisonOperator: GreaterThanThreshold</pre>
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       ComparisonOperator: GreaterThanThreshold
 +
 
 +
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cw-alarm.html
  
 
  <pre> CPUAlarmLow:
 
  <pre> CPUAlarmLow:
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       ComparisonOperator: LessThanThreshold</pre>
 
       ComparisonOperator: LessThanThreshold</pre>
  
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==SNS==
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== [[SNS]] ==
 
<ref>https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-sns.html</ref>
 
<ref>https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-sns.html</ref>
  
−
<pre>"MySNSTopic" : {
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MySNSTopic:
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    "Type" : "AWS::SNS::Topic",
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  Type: [[AWS::SNS::Topic]]
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    "Properties" : {
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  Properties:
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        "Subscription" : [ {
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    Subscription:
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            "Endpoint" : "add valid email address",
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    - Endpoint: "add valid email address"
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            "Protocol" : "email"
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      Protocol: email
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        } ]
 
−
    }
 
−
}</pre>
 
  
 
== 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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