Book Image

AWS Certified DevOps Engineer - Professional Certification and Beyond

By : Adam Book
Book Image

AWS Certified DevOps Engineer - Professional Certification and Beyond

By: Adam Book

Overview of this book

The AWS Certified DevOps Engineer certification is one of the highest AWS credentials, vastly recognized in cloud computing or software development industries. This book is an extensive guide to helping you strengthen your DevOps skills as you work with your AWS workloads on a day-to-day basis. You'll begin by learning how to create and deploy a workload using the AWS code suite of tools, and then move on to adding monitoring and fault tolerance to your workload. You'll explore enterprise scenarios that'll help you to understand various AWS tools and services. This book is packed with detailed explanations of essential concepts to help you get to grips with the domains needed to pass the DevOps professional exam. As you advance, you'll delve into AWS with the help of hands-on examples and practice questions to gain a holistic understanding of the services covered in the AWS DevOps professional exam. Throughout the book, you'll find real-world scenarios that you can easily incorporate in your daily activities when working with AWS, making you a valuable asset for any organization. By the end of this AWS certification book, you'll have gained the knowledge needed to pass the AWS Certified DevOps Engineer exam, and be able to implement different techniques for delivering each service in real-world scenarios.
Table of Contents (31 chapters)
1
Section 1: Establishing the Fundamentals
7
Section 2: Developing, Deploying, and Using Infrastructure as Code
16
Section 3: Monitoring and Logging Your Environment and Workloads
21
Section 4: Enabling Highly Available Workloads, Fault Tolerance, and Implementing Standards and Policies
27
Section 5: Exam Tips and Tricks

CloudWatch alarms

In addition to shipping your logs for storage and searching, another aspect of monitoring your system is being alerted when something goes awry. These could be simple notifications that let you know that a service or server is not being responsive. It could also be proactive alerts, letting you know that the platform that you are running your application on is running out of CPU or memory and needs to be scaled before larger issues arise.

You can use the CloudWatch service to monitor either a single metric or multiple conditions to create alarms. These alarms can be raised when the metrics of the underlying resources meet a certain criterion. There are two types of alarms that you can create in CloudWatch: metric alarms and composite alarms.

A metric alarm monitors a specific metric of CloudWatch. It has a threshold for monitoring that is set when it's initially created, along with the number of periods that can break the threshold before going into...