Your Mac needs to be running Mac OS Sierra or later, and have at least 4GB of RAM. It's got everything you'll need to run Docker in one Mac-friendly installer. Once you've signed up and signed in to Docker Hub, get Docker Desktop for Mac. Sign up for a Docker account with a unique Docker ID, your email, and a strong password. Create a Docker Hub accountĭocker Hub keeps track of the containers you're running (or creating) and provides a one-stop shop to find new ones. Pi-hole can automatically block Web ads across your entire home network, and Docker's the only way to get it working on a Mac without also having a Raspberry Pi. Running them in containers only makes sense if you like the technical challenge, want to keep a single app from hogging all your system's memory, or want to ensure that any malware you might pick up while browsing the web stays stuck inside its container, unable to escape to the rest of your Mac.Īs of this writing, the main reason I've found to run Docker on a Mac is Pi-hole, originally made for the Raspberry Pi. But most of these apps already have native Mac versions. 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.
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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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