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!
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.
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In this stage, we'll take a closer look at how Docker works.
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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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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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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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Jay McGavren
