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OPS04-AWS200 - Create a CloudWatch Alarm

Cloud Service Provider

  • Amazon Web Services

Difficulty

  • Level 200 (Intermediate)

Project's Author(s)

Objectives

You need to complete the following:

  • Launch an EC2 t2.micro instance with a public IP address and supply the provided bash script to install a simple website with an apache server in the UserData.
  • Visit the the public IP so that you are generating NetworkIn. You need to do this so the Metric appears selectable when create your CloudWatch Alarm
  • Create a CloudWatch Alarm and use EC2 NetworkIn as the metric
  • Set your CloudWatch Alarm to use a 5 minute period
  • Set your CloudWatch Alarm to a very low static threshold such as 5000
  • Set the Datapoint to alarms to 3 of 4
  • Try to get the Alarm to trigger an Alert state by visiting the website and generating NetworkIN

You need to answer the following:

  • What is a CloudWatch Alarm?
  • What is a metric?
  • What do we mean when we say "breach"?
  • What is a threshold?
  • What is a data point?
  • What is a period?
  • What are evaluation periods?

References

Costs

  • t2.micro is included in the Free Tier
  • First 10 CloudWatch Alarms are included in the Free Tier

Estimated time to complete

  • 45 minutes

Tips

  • It takes EC2 5 minutes before it reports NetworkIN so expect to wait 5-10 mins after visiting the website intially