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
Orchestration Using Docker Swarm

In the previous chapter, we learned about orchestration features. In this chapter, we will build on this by learning about Docker Swarm. It comes with Docker Engine (Docker installation packages) out of the box, so we don't need to install any other software. It is simpler to master the basics of Docker Swarm compared to the other orchestrators available, and it is powerful enough for production deployments.

In summary, in this chapter, we will learn how to deploy Docker Swarm in production. We will also review the new objects introduced by Docker Swarm and the steps required to deploy a complete application based on containers with orchestration. Networking is key for node-distributed applications, so we will examine how Docker Swarm provides solutions for internal networking, service discovery, and publishing deployed applications. At the...