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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 Beginners Guide to Docker

The pull operation downloads the image to your local Docker host where Docker can use it to start only one container.

The pull operation downloads the image to your local Docker host where Docker can use it to start only one container.

Images are ____________ constructs.

Which of the following commands can start a container from a single image?

Which of the following commands can start a container from a single image?

In a Docker host with zero images, how many images will be pulled in the Docker host after executing the following commands?

```shell
$ docker image pull alpine 
$ docker image pull alpine:latest
```

In a Docker host with zero images, how many images will be pulled in the Docker host after executing the following commands?
<pre><code class="language-shell">$ docker image pull alpine 
$ docker image pull alpine:latest
</code></pre>


```shell
$ docker image ls "{{.Size}}"
```


```shell
$ docker image ls --format "{{.Size}}"
```


```shell
$ docker image --format "{{.Size}}"
```


```shell
$ docker image ls --format "{{.size}}"
```

Which command will return *only* the size property of all of the images on the Docker host?

Which command will return only the size property of all of the images on the Docker host?

About the Course

Containers From 30,000 Feet

Docker

The Big Picture

The Docker Engine

Images

Containers

Containerizing an Application

Conclusion

Installing Docker

Quiz: Basics of Docker Images