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
Publishing Applications in Docker Enterprise

The previous chapter helped us to understand Docker Enterprise's control plane components. Docker UCP deploys Docker Swarm and Kubernetes clusters over the same nodes. Both orchestrators share host components and devices. Each orchestrator will manage its own hardware resources. Information such as available memory and CPU is not shared between orchestrators. Therefore, we have to take care if we use both on a host simultaneously.

But what about publishing applications deployed on them? We learned how to publish applications on Docker Swarm and Kubernetes, but working on enterprise environments must be secure. In this chapter, we will learn how to publish applications on Docker Enterprise environments using either UCP-provided or community tools.

This chapter will show us the main publishing resources and features provided by UCP...