![]() Launching Docker Desktop automatically starts the VM quitting the app will shut it down. You don't have to directly interact with QEMU as the VM's creation and management is handled for you. The docker CLI targets this daemon instance when you issue commands.ĭocker Desktop runs your containers inside a QEMU virtual machine. It uses a system service to run the Docker daemon. Docker Engine launches containers as processes directly on your host. You can also try manually loading the KVM kernel module using modprobe:ĭocker Engine is completely separate to Docker Desktop. You can check by running the kvm-ok command:Įnable virtualization in your system's BIOS or UEFI if kvm-ok reports an error. The KVM kernel module is usually enabled automatically when your host supports virtualization. Distro-specific documentation is available on Docker's website.ĭesktop requires a 64-bit system with 4 GB of RAM and KVM hardware virtualization enabled. Desktop's also supported on Ubuntu 21.10, Debian 11, and Fedora 35/36. The steps in this article have been tested in a clean Ubuntu 22.04 environment. This guide will show you how to set it up and get started. Docker announced a version of Desktop for Linux at DockerCon 2022, finally offering feature parity across all three major platforms. Linux users have had to install Docker Engine manually and interact with it from the terminal or a separate user interface. # echo "alias docker=\"sudo /usr/bin/docker\"" > /home/docker_user/.Docker Desktop has historically been limited to Windows and Mac systems. # echo "docker_user ALL=(ALL) NOPASSWD: /usr/bin/docker" > /etc/sudoers In this case we want to run the docker commands from a user called "docker_user", so we add an entry in the "/etc/sudoers" file and use an alias in the user's ".bash_profile" file so we don't have to keep typing the "sudo" command. The documentation says, "Warning: The docker group grants privileges equivalent to the root user", so we should avoid this. Create a group called docker and assign that to the user you want to run docker commands from.Allow another user to perform "sudo" on the docker command, so all commands are run using "sudo docker.Run the docker commands from the root user.You have three choices when if comes to running docker commands. You are now ready to start using Docker! Docker Commands as Non-Root Userĭocker commands run as the "root" user. You can get information about docker using the following commands. ![]() I could build the file system on this disk directly, but I prefer to partition the disks with a single partition using fdisk.Įcho -e "n\np\n1\n\n\nw" | fdisk $ xfs defaults 1 2" > /etc/fstab I have a second LUN with a device named "/dev/sdb". To do this you are going to need the yum-utils package.ĭnf install -y docker-ce -nobest Configure Disk (Optional)īy default the containers are created under the "/var/lib/docker", so you really need to house this on a separate disk or in a separate partition. In this article we have a separate virtual disk.Įnable all the required repositories.
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