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

Understanding AWS Auto Scaling

Auto Scaling, which is a subset of the Amazon EC2 service, revolves around automatically provisioning and managing your EC2 instances without the need for any manual intervention. The Auto Scaling service can be used to constantly maintain a fixed number of servers at any one time across one or more Availability Zones (AZs) within an Amazon Region. The service also provides you elasticity in that it can scale up to meet spikes of demand that your customers or applications present without constantly monitoring the system.

It does this by tapping into the power of a complementary service, Amazon CloudWatch. It watches a metric such as Central Processing Unit (CPU) utilization on an instance and makes sure that if it rises above 80 percent, meaning that 80 percent of the available CPU of the instance is being used for a specific time, such as 5 minutes, a scale-out event will then occur. This helps ease the load on this particular instance and should...