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Setting up Docker on your Computer

For Windows and Mac OS X there’s an easy new application called Docker Desktop that will contain everything you need, download it here. For Linux, just follow the guides here. If you want a GUI on Linux, and I would highly recommend it, install Portainer by running the following commands after installing docker:

$ docker volume create portainer_data$ docker run -d -p 8000:8000 -p 9000:9000 --name=portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer

Testing Docker

After you’ve successfully installed Docker Desktop, open a terminal and run docker --version to check the version of Docker installed on your machine.

$ docker --versionDocker version 19.03.5, build 633a0ea

Now you can run a pre-made docker image called hello-world to make sure everything works:

    $ docker run hello-world    Unable to find image 'hello-world:latest' locally    latest: Pulling from library/hello-world    ca4f61b1923c: Pull complete    Digest: sha256:ca0eeb6fb05351dfc8759c20733c91def84cb8007aa89a5bf606bc8b315b9fc7    Status: Downloaded newer image for hello-world:latest    Hello from Docker!    This message shows that your installation appears to be working correctly.    ...

Then run docker image ls to see the hello-world image that you downloaded to your machine. Also see any active containers by using the docker ps --all command, or opening up the GUI you installed.

    $ docker ps --all    CONTAINER ID     IMAGE           COMMAND      CREATED            STATUS    54f4984ed6a8     hello-world     "/hello"     10 seconds ago     Exited (0) 19 seconds ago

You’re all set to start developing with Docker!