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

AWS Lambda overview

AWS Lambda is a service that allows you to run your code as a function, without the need to stand up any servers or provision or orchestrate containers. It automatically scales to the number of requests that it receives. One of the most attractive items about Lambda functions is that they are only charged for the time they run. This means that you can have your platform provisioned in one or multiple regions, waiting for requests, without worrying how much the bill will accumulate from idle resources.

Lambda lets you concentrate on the code instead of servers as it is a serverless Platform as a Service offering. Being a PaaS also means that you have no access to the underlying compute platform to make adjustments other than those that AWS exposes to you, such as the runtime (programming language) or your environment, the amount of memory that your function needs to use, and the amount of CPU allocated:

Figure 12.1 – Lambda architecture...