There are Docker versions of familiar desktop apps like Firefox, Chrome, Skype, Spotify, image editor GiMP, and audio editor Audacity.
Who is Docker for?Īs mentioned above, Docker's mainly aimed at programmers who want to containerize existing apps or write new ones, and businesses and IT folks who want to use its industrial-grade software.
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Once you fire up the easy-to-install Docker app, it runs in the background, and you can use the Terminal or another app called Kitematic (we'll get to that later) to install and run containerized apps. And you can use Docker to run apps that weren't originally written for the Mac. Unlike those apps, you can't use Docker to run Windows on your Mac – though you can run at least limited versions of Linux with it. And because it emulates an operating system – usually some flavor of Linux, though you can also set it up to run enterprise versions of Windows – instead of actual chip hardware, it demands a lot less memory and processing power than traditional virtual machines like Parallels or VMware Fusion. How does Docker work?ĭocker uses emulation to ensure that the same containerized app can run on any machine where Docker's installed. And users get apps that won't sprawl out and spread files into their hard drives' nooks and crannies, nor start hogging memory and slowing down the entire computer. Businesses get an efficient way to run lots of apps on a single server without straining their hardware. Programmers can write an app once and know that it'll run anywhere, every time. What are containerized apps?Ĭontainerized apps are tidy little packages of software that bundle nearly everything they need to run in a single, self-contained box. And while Docker's mainly aimed at programmer types, there are a few reasons why everyday Mac users might want it around as well.
The platform known as Docker has become one of the most popular ways to run a new kind of software known as containerized apps.
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