Book Image

Cloud Security Handbook

By : Eyal Estrin
Book Image

Cloud Security Handbook

By: Eyal Estrin

Overview of this book

Securing resources in the cloud is challenging, given that each provider has different mechanisms and processes. Cloud Security Handbook helps you to understand how to embed security best practices in each of the infrastructure building blocks that exist in public clouds. This book will enable information security and cloud engineers to recognize the risks involved in public cloud and find out how to implement security controls as they design, build, and maintain environments in the cloud. You'll begin by learning about the shared responsibility model, cloud service models, and cloud deployment models, before getting to grips with the fundamentals of compute, storage, networking, identity management, encryption, and more. Next, you'll explore common threats and discover how to stay in compliance in cloud environments. As you make progress, you'll implement security in small-scale cloud environments through to production-ready large-scale environments, including hybrid clouds and multi-cloud environments. This book not only focuses on cloud services in general, but it also provides actual examples for using AWS, Azure, and GCP built-in services and capabilities. By the end of this cloud security book, you'll have gained a solid understanding of how to implement security in cloud environments effectively.
Table of Contents (19 chapters)
1
Section 1: Securing Infrastructure Cloud Services
6
Section 2: Deep Dive into IAM, Auditing, and Encryption
10
Section 3: Threats and Compliance Management
14
Section 4: Advanced Use of Cloud Services

Automation using IaC

Managing large cloud environments requires a change in mindset. Manual deployment is prone to human mistakes, deviation from configuration standards, and is hard to maintain in the long run since it does not scale. The idea behind IaC is to switch from a manual to an automated way to deploy or make changes to resources in the cloud environment using code.

IaC helps bridge multiple organizations within a cloud service provider or even multiple cloud service providers. There are two ways to use IaC:

  • Declarative: Define what the desired state is (for example, object storage must be encrypted at rest).
  • Imperative: Define how the infrastructure needs to be changed to your requirements (for example, ordered steps to create networking configuration and then the compute resources within it).

The following are the benefits of using IaC:

  • Cost Reduction: People can focus on tasks other than resource provisioning or resource change.
  • Fast Deployment...