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  • Book Overview & Buying Docker Certified Associate (DCA): Exam Guide
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Docker Certified Associate (DCA): Exam Guide

Docker Certified Associate (DCA): Exam Guide

By : Francisco Javier Ramírez Urea
4.4 (5)
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Docker Certified Associate (DCA): Exam Guide

Docker Certified Associate (DCA): Exam Guide

4.4 (5)
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)
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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

Backup strategies

In this section, we will learn how to backup and restore the Docker Enterprise UCP platform.

As UCP runs on top of Docker Swarm, this is the first component to review when preparing a good backup strategy.

We should run periodic backups of Docker Swarm. These backups will allow us to recover cluster configuration and workloads.

Docker Swarm's backup

We introduced how to execute a Docker Swarm backup in Chapter 8, Orchestration Using Docker Swarm. In that chapter, we described the content we should take care of. Let's learn about the steps to follow to implement a production-ready backup of Docker Swarm for the Docker Enterprise platform.

Make sure you have applied the auto-lock feature to improve secure access to Docker Swarm data as we will need it. The lock key will not be stored with a backup. You should store it in a safe place.

We will execute the backup steps on all non-leader manager nodes. This will ensure that any of the managers except the leader...

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