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Hi, guys.

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In this video I want to explain you how to install Docker on Linux like system.

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I'll tell you which Linux like systems are supported and how to get Docker up and running on such OS.

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Please notice that Linux like system is basically native operating system for Docker and that's why

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there is no need to create a separate virtual machine where containers will be running as it is done

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for macOS and for Windows on Linux like systems, containers will be created directly without any intermediate

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virtual machines.

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Okay, let's get right into it.

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And here in this example I have Ubuntu operating system version bionic 1804 and now let's open up Google

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Chrome and here let's type install docker.

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And click on first link.

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Install Docker.

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Docker Documentation.

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You'll see on this page different options of installation of Docker.

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And as I have noted before on macOS and on Windows, you need to install Docker desktop that will basically

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create virtual machine Linux virtual machine.

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And inside of that virtual machine you will run containers.

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But if you run Linux like system, then you'll install Docker directly on your computer and create containers

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directly on it.

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Let's choose this option Docker for Linux.

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And here on this page you will see description of Docker engine.

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Here is list of supported platforms and you'll see that for macOS and for Windows you need to install

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Docker desktop and inside of it, basically Docker engine will be running, but if you scroll a bit

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down, you'll see list of server operating systems like CentOS, Debian or Ubuntu that are Linux like

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systems that could be used for direct installation of Docker engine.

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If you'll go to installation per distro, you'll see different options like install on CentOS, install

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on Debian, install on ubuntu and so on.

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I'm running now ubuntu.

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That's why I'll click on this option install on ubuntu and on this page I'll see which ubuntu versions

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are currently supported.

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There are three of them ubuntu on ubuntu bionic and ubuntu xenial.

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Now let me demonstrate you how you are able to verify which operating system you are currently running

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on your computer.

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Let me go to terminal and here first, let's check version of operating system.

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Cut it htc slash os release.

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You could use tab in order to auto complete command and I'll see that I'm currently running ubuntu version

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is 1804 bionic beaver.

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Also, I'm able to check version like so lsb underscore release dash x and I'll see bionic.

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Also, you could verify your processor architecture.

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Let me enter here.

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Command uname dash m and I'll see that architecture in my case is x86 underscore 64.

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Why is that important?

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Here on this page you'll see that depending on different architectures, you need to enter different

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commands here on this step on this one.

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And by default architecture x86 underscore 64 is selected and command is here.

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And basically that's architecture that I'm using right now.

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Great.

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Let's now start from the very beginning of this document and install Docker directly on Ubuntu operating

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system.

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Let's now start from the very beginning from this step number one with setting up repository.

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Let me copy this command that will actually update information about packages.

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Let me copy it.

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Go to terminal, let me clear it and paste command like so enter.

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Let me enter my password.

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It will take some time.

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Let's wait a bit.

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Let me meanwhile copy your next command that will install some packages.

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Let me copy the entire command like so notice that this command is splitted into different lines using

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backslashes for better readability.

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Let me copy it.

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Go to terminal.

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It was already updated.

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Let me clear terminal paste command.

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Enter.

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Some of those packages were already present on this computer.

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That's why there was no need to install, for example, Corel or CA certificates.

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Okay, let's move on to next step.

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Let me scroll a bit down.

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Let me add official GPG key of Docker.

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Copy this.

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Command go to terminal.

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Based.

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Key was added.

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And here you are able to verify.

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Fingerprint.

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Let me copy this command.

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With this check, you are able to verify that you will download packages from Docker.com, not from

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any other malicious server that has spoofed docker.com IP address or hostname.

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Okay, let me enter this command and you'll see here fingerprints and you could compare them with those

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mentioned here on this page.

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And for example, if I'll compare this line, it will be same as in terminal in my case.

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So it ends with CD 88.

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Great.

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Let's move on to next step.

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And next you'll see instructions how to install stable repository.

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You're also able to install so-called nightly or test repositories.

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And if you want to install them, you could read how to do that here and learn about those repositories

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in details.

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By going to this link.

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Let me scroll a bit down and here again, as I have shown you before, I'm using this architecture x86

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64 and now let me copy this command go to terminal back and here paste it.

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It will download the some packages.

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Let's wait until it will be completed.

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Okay.

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All necessary files were downloaded.

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Let's move on next and let's now install finally Docker engine.

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You could again update APT packages.

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Let me copy this command and paste here.

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And let me copy the next command that will basically install Docker Community Engine and Docker CLI.

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Let me copy this command.

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Go to terminal and paste it here.

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Yes, I want to continue.

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Notice that this installation will take around 400MB of disk space.

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It is actually much lower than the installation package for Windows or macOS.

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Okay, let me scroll down a bit.

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And here below on the step number two, you are able to see how to install a specific version of Docker

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engine if you want to do so.

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Now we should have Docker installed on this computer.

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Let me clear terminal and enter command Docker Dash dash help.

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It will list all commands available to use along with Docker and will see such commands as the Docker

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version.

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Docker Start.

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And if I'll scroll up, you will see some additional management commands like Docker Container, Docker

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Engine and so on.

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That means that Docker was successfully installed on this computer and it is ready to use.

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Let's proceed.

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And next we will try to create very first Docker container using basic Hello world image.

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See you next.

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Bye bye.