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Introduction to Docker

103-minute Development Tools Course

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About this Course

Docker allows any developer of any language to package an app into a container, like a shipping container. Containers include an app and all the other software it depends on, like databases. Containers let your users easily run your website, app, or service on any operating system they want. This course will show you how Docker works, and how it can make it easier to distribute your software!

What you'll learn

  • Images and containers
  • Dockerfiles
  • Docker networking
  • Registries

Why Docker?

Docker bundles your app together with all the libraries and services it depends on into a package called a container, which can then be delivered as a single unit wherever it needs to go. In this stage, we'll look at how this powerful new paradigm can help you deliver software more easily.

Chevron 5 steps

Building Images Using Dockerfiles

Docker looks for a Dockerfile for instructions on how it should build an image. In this stage, we're going to learn about all the instructions you can include in a Dockerfile so that your image is configured just the way you want it.

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Managing Images and Containers

Now that you know the basics of creating Docker images and containers, it probably won't be long before you build up a substantial collection. Let's look at some features Docker has provided to help you manage your images and containers.

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Dockerizing a Web App

In this final stage, we'll take everything we've learned so far and Dockerize this simple Node.js web app.

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Teachers

  • Jay McGavren

    Resident Ruby and Go teacher for Treehouse. Author of Head First Ruby, a tutorial book on the core Ruby language.

  • Jared Smith

    Jared is a Computer Security researcher at the US's largest national laboratory in Oak Ridge, TN, where he works on projects ranging from novel security data analytics tools to malware research. He was previously a software security engineer at Cisco System's internal security team and serves as a technical advisor for several Knoxville, TN companies. He roams the so-called "Cyberspace" as @jaredthecoder.

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