Introduction

Monitoring your AWS CloudWatch metrics is an essential part of managing your cloud infrastructure. CloudWatch provides real-time visibility into the performance of your applications and services, allowing you to quickly identify and address any issues. In this lesson, we’ll explore how to monitor AWS CloudWatch metrics, including how to set up CloudWatch alarms, how to use CloudWatch Logs, and how to use CloudWatch metrics to troubleshoot performance issues.

What is AWS CloudWatch?

AWS CloudWatch is a monitoring service that provides real-time visibility into the performance of your applications and services. It allows you to set up alarms to alert you when certain conditions are met, and it provides detailed logs that can be used to troubleshoot performance issues. CloudWatch also provides metrics that can be used to track the performance of your applications and services over time.

Setting Up CloudWatch Alarms

CloudWatch alarms allow you to set up notifications when certain conditions are met. For example, you can set up an alarm to notify you when the CPU utilization of an EC2 instance exceeds a certain threshold. To set up an alarm, you first need to create a metric to monitor. You can create a custom metric or use one of the pre-defined metrics provided by CloudWatch. Once you have created the metric, you can then create an alarm to monitor it.

Using CloudWatch Logs

CloudWatch Logs allow you to store and monitor log data from your applications and services. You can use CloudWatch Logs to troubleshoot performance issues, identify security threats, and monitor the health of your applications and services. CloudWatch Logs can be used to store log data from applications running on EC2 instances, as well as from services such as Lambda and API Gateway.

Using CloudWatch Metrics to Troubleshoot Performance Issues

CloudWatch metrics can be used to track the performance of your applications and services over time. You can use CloudWatch metrics to identify trends and anomalies in your application’s performance, and to troubleshoot performance issues. For example, you can use CloudWatch metrics to identify when an EC2 instance is running out of memory or when a Lambda function is taking too long to execute.

Using AWS CDK with Typescript to Monitor CloudWatch Metrics

AWS CDK is a software development framework that allows you to define and deploy cloud infrastructure using code. You can use AWS CDK with Typescript to define and deploy CloudWatch alarms and metrics. For example, you can use AWS CDK to define an alarm that will notify you when the CPU utilization of an EC2 instance exceeds a certain threshold.

Using AWS CLI to Monitor CloudWatch Metrics

The AWS Command Line Interface (CLI) is a tool that allows you to manage AWS services from the command line. You can use the AWS CLI to monitor CloudWatch metrics. For example, you can use the AWS CLI to list all of the CloudWatch metrics for an EC2 instance, or to set up an alarm to notify you when the CPU utilization of an EC2 instance exceeds a certain threshold.

Conclusion

In this lesson, we explored how to monitor AWS CloudWatch metrics. We looked at how to set up CloudWatch alarms, how to use CloudWatch Logs, and how to use CloudWatch metrics to troubleshoot performance issues. We also looked at how to use AWS CDK with Typescript and the AWS CLI to monitor CloudWatch metrics. By following the steps outlined in this lesson, you should now have a better understanding of how to monitor AWS CloudWatch metrics.