Guided Lab: Creating a CloudWatch Alarm

Tutorials-Dojo

Description

AWS CloudWatch is a monitoring service for AWS resources and applications. It provides data and actionable insights to monitor applications, understand and respond to system-wide performance changes, optimize resource utilization, and get a unified view of operational health.

A key feature of CloudWatch is the ability to set alarms. A CloudWatch Alarm watches a single metric over a specified time period, and performs one or more specified actions, based on the value of the metric relative to a threshold over time. These actions enable you to automatically react to changes in your AWS resources.

For example, you can set an alarm that sends an email message if the CPU usage of an EC2 instance exceeds a certain threshold for a specified number of periods. This allows you to automate responses, which can reduce the time that you spend on operational tasks.

Prerequisites

This lab assumes you have experience creating EC2 instances and are familiar with its basic components.

If you find any gaps in your knowledge, consider taking the following labs:

Creating an Amazon EC2 instance (Linux)
Setting up a Web server on an EC2 instance

Objectives

In this lab, you will learn how to:

Understand the concept and purpose of CloudWatch Alarms in AWS.
Learn how to create a CloudWatch Alarm.
Learn how to configure actions for a CloudWatch Alarm.

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