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Gain insights into Docker with Nigel Poulton. Learn about container basics, image creation, and application containerization, and demystify jargon to proficiently deploy Docker in real-world scenarios.

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Containers have revolutionized the IT world and it can be hard to know where to start. In this course, Docker Captain Nigel Poulton guides you through the basics all the way to proficiency.

You'll learn why we have containers and how they work. You’ll run through the basics like images, the Docker engine, and containers. With the basics out of the way, you'll then containerize an application and learn how to run it. Throughout the course, Nigel will demystify all the jargon and buzzwords. When you're done, you'll be ready to use Docker in the real world.

The Beginner’s Guide to Docker

# What are Docker images?

Images are objects that contain everything an app needs to run. This includes an OS filesystem, the application, and all dependencies. If you work in operations, they're similar to VM templates. If you're a developer, they're similar to _classes_.


> **Note:** At the end of this lesson, a terminal is provided where you can run the commands.

Run the `docker images` command on your Docker host.

An overview of Docker images and how to download them.


Docker Images

An overview of Docker images and how to download them.

About the Course

Containers From 30,000 Feet

Docker and Container-related Standards and Projects

The Big Picture

The Docker Engine

Working with Images

Working with Containers

Containerizing an Application

Conclusion

Appendix: Getting Docker

Docker Images

What are Docker images?