Chapter 15: CloudWatch Metrics and Amazon EventBridge

Metrics are one of the central tenants of AWS CloudWatch. They record the performance of your services and can be used to trigger alarms and actions based on the data they provide. There is a multitude of out-of-the-box metrics available, but there is also the ability to create custom metrics. This can expand the capabilities of CloudWatch even further.

Having the ability to harness the metrics captured when they reach certain thresholds is a capability of Amazon EventBridge. As a DevOps engineer, this is a powerful tool that can help you automate your systems so that they are self-healing, as well as constantly scaling up and down to meet your customers' generated capacity needs. These automated responses can be triggered by both native AWS services and third-party systems. This is especially useful in routine monitoring and creating routines when certain events occur.

In this chapter, we're going to cover the...