How To Create a CloudWatch Alarm for CPU Utilization

1. Create EC2 for Amazon Linux

2. Create Cloudwatch Alarm

• In the AWS Management Console, type cloudwatch into the search box, and then select the CloudWatch service.

• Click All alarms

• Click Create alarm

• Click Select metric

• Click EC2

• Click Per-Instance Metrics

• Select Cloudwatch Lab and click Create alarm

• Set Period based on your need

• Select Greater/Equal and Write 80 and then Click Next

• Select Create new topic , Write topic name and your email then click Next

• Write CPU High Usage Alert and click Next then click Create alarm

3. Install stress application at EC2

• In the AWS Management Console, type EC2 into the search box, and then select the EC2 service. • On the Instances page, select the Cloudwatch lab check box, and then select Connect.

• To install the Stress Application

sudo yum install stress -y

sudo stress --cpu 4

4. Monitor the CPU High Usage Alert alarm for the WebServer EC2 instance

• In the AWS Management Console, type EC2 into the search box, and then select the EC2 service.

• Select Cloudwatch lab and Monitoring

5. Check CPU High Usage Alert

• In the AWS Management Console, type Cloudwatch into the search box, and then select the CloudWatch service.

• Click All alarms

• You will see alarm is in alarm state

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Status: Complete ✅

Congratulations on successfully completing this.

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Related Resources

• Lab Repository: AWS Learning Labs
• Technical Blog: Whispering Cloud Insights
• DEV Community: Thu Kha Kyawe

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