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Docker Certified Associate (DCA): Exam Guide

You're reading from   Docker Certified Associate (DCA): Exam Guide Enhance and validate your Docker skills by gaining Docker certification

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Product type Paperback
Published in Sep 2020
Publisher Packt
ISBN-13 9781839211898
Length 612 pages
Edition 1st Edition
Tools
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Author (1):
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Francisco Javier Ramírez Urea Francisco Javier Ramírez Urea
Author Profile Icon Francisco Javier Ramírez Urea
Francisco Javier Ramírez Urea
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Toc

Table of Contents (22) Chapters Close

Preface 1. Section 1 - Key Container Concepts
2. Modern Infrastructures and Applications with Docker FREE CHAPTER 3. Building Docker Images 4. Running Docker Containers 5. Container Persistency and Networking 6. Deploying Multi-Container Applications 7. Introduction to Docker Content Trust 8. Section 2 - Container Orchestration
9. Introduction to Orchestration 10. Orchestration Using Docker Swarm 11. Orchestration Using Kubernetes 12. Section 3 - Docker Enterprise
13. Introduction to the Docker Enterprise Platform 14. Universal Control Plane 15. Publishing Applications in Docker Enterprise 16. Implementing an Enterprise-Grade Registry with DTR 17. Section 4 - Preparing for the Docker Certified Associate Exam
18. Summarizing Important Concepts 19. Mock Exam Questions and Final Notes 20. Assessments 21. Other Books You May Enjoy

Summary

This chapter was dedicated to the Docker command line and running containers. We found a powerful command line that allowed us to create containers from image artifacts, share them between hosts, and execute the already built application components.

We learned how to interact with different Docker objects, as well as what kind of objects are available in standalone Docker host environments and what objects are available in orchestrated environments.

We then reviewed how containers can be created, executed, paused/unpaused, and stopped or killed. They will stay in our Docker host until they are removed from the system. We also learned how to manipulate the container's execution behavior and how they exist within the network. To improve security, we introduced a number of options and we also learned how executing containers in read-only mode can be very useful.

Limiting the container's resources is necessary for production. By default, they will be able to consume all...

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