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

Deploying UCP with high availability

First, we will take a look at the hardware and software requirements for the platform. We will use version 3.0 – the current version at the time of writing this book. It is known that the DCA exam was prepared even before Docker Enterprise version 2.0 was released. Neither Docker Desktop nor Kubernetes were part of the Docker Enterprise platform on that release. We will deploy the current version because the exam has evolved to cover important topics in newer versions. Let's quickly review the current maintenance life cycle:

Docker Enterprise 2.1

Docker Enterprise 3.0

End of life on 2020-11-06

End of life on 2021-07-21

Components:

- Enterprise Engine 18.09.z
- Universal Control Plane 3.1.z
- Docker Trusted Registry 2.6.z

Components:

- Enterprise Engine 19.03.z

- Universal Control Plane 3.2.z

- Docker Trusted Registry 2.7.z

Docker provides 2 years of support from the release date. We recommend taking a look at Docker...