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Learn everything you need to know to run containers in the real world from Docker Captain Nigel Poulton.

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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

Earlier in the chapter, we learned that containers are designed to run a single process, and killing this process also kills the container. Let's test if that's true. Run the following command to start a new interactive container called `ddd-ctr` based on the Ubuntu image and tell it to run a Bash shell as its main process. 


Learn how to manage a container by terminating its main process, how to then restart the container and attach it to the shell, and how to exit a container without killing it.


Killing a Container’s Main Process

Learn how to manage a container by terminating its main process, how to then restart the container and attach it to the shell, and how to exit a container without killing it.

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

Killing a Container’s Main Process