Book Image

Docker Certified Associate (DCA): Exam Guide

By : Francisco Javier Ramírez Urea
Book Image

Docker Certified Associate (DCA): Exam Guide

By: Francisco Javier Ramírez Urea

Overview of this book

Developers have changed their deployment artifacts from application binaries to container images, and they now need to build container-based applications as containers are part of their new development workflow. This Docker book is designed to help you learn about the management and administrative tasks of the Containers as a Service (CaaS) platform. The book starts by getting you up and running with the key concepts of containers and microservices. You'll then cover different orchestration strategies and environments, along with exploring the Docker Enterprise platform. As you advance, the book will show you how to deploy secure, production-ready, container-based applications in Docker Enterprise environments. Later, you'll delve into each Docker Enterprise component and learn all about CaaS management. Throughout the book, you'll encounter important exam-specific topics, along with sample questions and detailed answers that will help you prepare effectively for the exam. By the end of this Docker containers book, you'll have learned how to efficiently deploy and manage container-based environments in production, and you will have the skills and knowledge you need to pass the DCA exam.
Table of Contents (22 chapters)
1
Section 1 - Key Container Concepts
8
Section 2 - Container Orchestration
12
Section 3 - Docker Enterprise
17
Section 4 - Preparing for the Docker Certified Associate Exam
Modern Infrastructures and Applications with Docker

Microservices and containers have probably been the most frequently mentioned buzzwords in recent years. These days, we can still hear about them at conferences across the globe. Although both terms are definitely related when talking about modern applications, they are not the same. In fact, we can execute microservices without containers and run big monolithic applications in containers. In the middle of the container world, there is a well-known word that comes to mind when we find ourselves talking about them – Docker.

This book is a guide to passing the Docker Certified Associate exam, which is a certification of knowledge pertaining to this technology. We will cover each topic needed to pass this exam. In this chapter, we will start with what microservices are and why they are important in modern applications. We will also cover how Docker manages the requirements of this application's logical components.

This chapter will guide you through Docker's main concepts and will give you a basic idea of the tools and resources provided to manage containers.

In this chapter, we will cover the following topics:

  • Understanding the evolution of applications
  • Infrastructures
  • Processes
  • Microservices and processes
  • What are containers?
  • Learning about the main concepts of containers
  • Docker components
  • Building, shipping, and running workflows
  • Windows containers
  • Customizing Docker
  • Docker security

Let's get started!