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

Authenticating and authorizing in DynamoDB

As with other services in AWS, Dynamo DB allows fine-grained access control via the IAM service. You can either allow or disallow users at the service, table, or attribute level, depending on how you have structured your IAM policies.

AWS recommends, as a best practice, that you use the principle of least privilege and only allow users to access the data in the tables that they require versus blanket access.

Web Identity Federation

DynamoDB is an especially popular backend database for mobile and game developers. This can result in thousands of users needing to access even a single table. In this use case scenario, it is impractical to try to create an IAM user for each and every user:

Figure 5.6 – Web Identity Federation to a DynamoDB table

The best way to understand how users who are authenticating via a web identity provider, such as Facebook or Google, gain access to data in a DynamoDB table...