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Now Docker Desktop is the recommended way

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of running Docker on macOS and Windows,

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but it's not a available on every system.

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If you go to the Developer Docs part here

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on the Docker page.

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So if you visit docs.docker.com

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you can click on Download and install.

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And there you see the requirements for using Docker Desktop,

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both for Windows as well as for Mac.

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Now the good thing is for macOS

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most systems support Docker Desktop.

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If you have Mac hardware newer than 2010

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and you fulfill all these requirements, you will be fine.

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For Docker desktop for Windows,

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you need Windows 10 essentially,

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as you saw in the last lecture as well.

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But if you don't fulfill these requirements

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there is an alternative available for you.

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There is a tool named Docker Toolbox

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which you can then use instead of Docker Desktop.

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If you google for docker toolbox

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you should find these Toolbox installation instructions.

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It's a legacy tool because it's not recommended

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that you use it anymore

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because it was replaced

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by Docker Desktop for Mac and Windows.

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Historically Docker Toolbox was the only solution

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for all platforms.

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Nowadays, we have to more modern Docker Desktop solution.

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But for older systems that's not available

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so therefore there

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you need to stick to Docker Toolbox.

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Now what is Docker Toolbox?

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The Docker tool runs natively on Linux

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and to make it work on macOS or Windows

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you in the end need a virtual machine.

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So a machine simulated on your machine

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which holds a Linux installation in which Docker can run.

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Now Docker Desktop for both Mac and Windows

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uses built-in operating system features for that.

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But older versions don't have these features.

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That's why you then need

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to install a virtual machine manually

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and install Docker inside of that machine.

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And that's in the end what Docker Toolbox helps you with.

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So, how do you use Docker Toolbox then?

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Well, first of all, you might want to verify

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that you really can't use Docker Desktop

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but if you are at this point that you can't use it

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you can follow the instructions on this page.

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And on this page, you, for example,

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can find out how to check whether your system supports

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the virtualization which is needed.

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For example, how to check it on Windows 8.

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If you don't fulfill the requirements listed here,

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you unfortunately can't use Docker on your system

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because you will not be able to install Docker Toolbox.

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And that is the last possible way of getting Docker to run.

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So make sure you check these requirements on Windows 8.

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For Windows 7, make sure you use a tool like Speccy

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or the Hardware-Assisted Virtualization Detection Tool.

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And once you know that you are able to run a virtual machine

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you can install Docker Toolbox.

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On macOS, by the way, check the Install Toolbox on Mac here

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to find all the installation steps there

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though in general,

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these are the same steps as shown on Windows.

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So I will show it on Windows here,

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but this would be your macOS steps

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if you need to install Docker Toolbox on macOS,

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because you can't use Docker Desktop.

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Now, how does this work?

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First of all, you need to go to the Toolbox Releases page

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and download the latest version there

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and simply download the executable for Windows

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and the package file for macOS.

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So here I'll go with the executable for Windows

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and this will now install everything you need to install

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to get Docker to run on your older Windows machine

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or on your older macOS machine.

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You find detailed installation instructions on

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the page we just visited by the way.

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So definitely make sure you also check these steps here

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in case you should get stuck.

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So let's wait for this download to complete.

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And once it did complete, we can execute this installer

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which we downloaded.

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In that installer, simply walk through the different steps

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and pick a location where that should be installed

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on your system.

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Click Next

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and then make sure you have all these things checked.

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Docker Toolbox needs VirtualBox for example,

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which is a tool that creates a virtual machine

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on your system.

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And you should also ensure

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that all the other tools here are being installed.

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So click Next, then

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you can decide whether you want the desktop shortcut or not.

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You should definitely keep the second option check though

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that Docker binaries are added to your path.

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And you can in general go with the default settings here.

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So let's click Next and Install.

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And this will now install

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and set up all the tools Docker needs

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to bring up that virtual machine

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in which Docker then is able to run.

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Now, eventually this will be installed.

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And you can then click Finish

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and it should open up this folder

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with some shortcuts you can use to basically start Docker.

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You can simply click the Docker Quickstart Terminal here

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and this will open up a terminal

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in which you then can run the Docker command.

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Now you see for me, I'm not able to start it

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because I have Hyper-V enabled on my machine

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and therefore I should not use Docker Toolbox.

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But if you can't use Hyper-V,

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if you can't use Docker Desktop therefore

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you should instead see something like this,

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and you will have an environment

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in which you can run Docker commands.

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So where you then for example, can run Docker

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to see a list of all commands

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or execute all the different Docker commands

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you will see throughout this course.

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And that is it.

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This is then your environment

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in which you can work to run Docker commands

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and to work with containers as shown throughout the course.

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What you'll learn about Docker will be the same

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as if you used Docker Desktop.

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So the concepts are all the same.

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It's really just the environment

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in which you run Docker, which is different.

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And as mentioned multiple times, if you get any chance

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of upgrading to Docker Desktop, definitely do that.

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It offers greater performance,

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doesn't clutter your system as much.

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And overall is the recommended environment

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for running Docker.