Install Docker Engine on Fedora

To get started with Docker Engine on Fedora, make sure you meet the prerequisites , and then follow the  installation steps . 
 Prerequisites 
 OS requirements 
 To install Docker Engine, you need a maintained version of one of the following Fedora versions: 
 
 Fedora 40 
 Fedora 41 
 
 Uninstall old versions 
 Before you can install Docker Engine, you need to uninstall any conflicting packages. 
 Your Linux distribution may provide unofficial Docker packages, which may conflict with the official packages provided by Docker. You must uninstall these packages before you install the official version of Docker Engine. 
 $ sudo dnf remove docker \
 docker-client \
 docker-client-latest \
 docker-common \
 docker-latest \
 docker-latest-logrotate \
 docker-logrotate \
 docker-selinux \
 docker-engine-selinux \
 docker-engine
 
 dnf  might report that you have none of these packages installed. 
 Images, containers, volumes, and networks stored in  /var/lib/docker/  aren't automatically removed when you uninstall Docker. 
 Installation methods 
 You can install Docker Engine in different ways, depending on your needs: 
 
 
 You can  set up Docker's repositories  and install from them, for ease of installation and upgrade tasks. This is the recommended approach. 
 
 
 You can download the RPM package,  install it manually , and manage upgrades completely manually. This is useful in situations such as installing Docker on air-gapped systems with no access to the internet. 
 
 
 In testing and development environments, you can use automated  convenience scripts  to install Docker. 
 
 
 Install using the rpm repository 
 Before you install Docker Engine for the first time on a new host machine, you need to set up the Docker repository. Afterward, you can install and update Docker from the repository. 
 Set up the repository 
 Install the  dnf-plugins-core  package (which provides the commands to manage your DNF repositories) and set up the repository. 
 $ sudo dnf -y install dnf-plugins-core
$ sudo dnf-3 config-manager --add-repo https://download.docker.com/linux/fedora/docker-ce.repo
 
 Install Docker Engine 
 
 
 Install the Docker packages. 
 
   
 
 
 
 
 
 To install the latest version, run: 
 $ sudo dnf install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
 
 If prompted to accept the GPG key, verify that the fingerprint matches  060A 61C5 1B55 8A7F 742B 77AA C52F EB6B 621E 9F35 , and if so, accept it. 
 This command installs Docker, but it doesn't start Docker. It also creates a  docker  group, however, it doesn't add any users to the group by default. 
 
 
 
 
 
 
 
 Start Docker Engine. 
 $ sudo systemctl enable --now docker
 
 This configures the Docker systemd service to start automatically when you boot your system. If you don't want Docker to start automatically, use  sudo systemctl start docker  instead. 
 
 
 Verify that the installation is successful by running the  hello-world  image: 
 $ sudo docker run hello-world
 
 This command downloads a test image and runs it in a container. When the container runs, it prints a confirmation message and exits. 
 
 
 You have now successfully installed and started Docker Engine. 
 
 Tip 
 Receiving errors when trying to run without root? 
 The  docker  user group exists but contains no users, which is why you’re required to use  sudo  to run Docker commands. Continue to  Linux postinstall  to allow non-privileged users to run Docker commands and for other optional configuration steps. 
 
 Upgrade Docker Engine 
 To upgrade Docker Engine, follow the  installation instructions , choosing the new version you want to install. 
 Install from a package 
 If you can't use Docker's  rpm  repository to install Docker Engine, you can download the  .rpm  file for your release and install it manually. You need to download a new file each time you want to upgrade Docker Engine. 
 
 
 Go to  https://download.docker.com/linux/fedora/  and choose your version of Fedora. Then browse to  x86_64/stable/Packages/  and download the  .rpm  file for the Docker version you want to install. 
 
 
 Install Docker Engine, changing the following path to the path where you downloaded the Docker package. 
 $ sudo dnf install /path/to/package.rpm
 
 Docker is installed but not started. The  docker  group is created, but no users are added to the group. 
 
 
 Start Docker Engine. 
 $ sudo systemctl enable --now docker
 
 This configures the Docker systemd service to start automatically when you boot your system. If you don't want Docker to start automatically, use  sudo systemctl start docker  instead. 
 
 
 Verify that the installation is successful by running the  hello-world  image: 
 $ sudo docker run hello-world
 
 This command downloads a test image and runs it in a container. When the container runs, it prints a confirmation message and exits. 
 
 
 You have now successfully installed and started Docker Engine. 
 
 Tip 
 Receiving errors when trying to run without root? 
 The  docker  user group exists but contains no users, which is why you’re required to use  sudo  to run Docker commands. Continue to  Linux postinstall  to allow non-privileged users to run Docker commands and for other optional configuration steps. 
 
 Upgrade Docker Engine 
 To upgrade Docker Engine, download the newer package files and repeat the  installation procedure , using  dnf upgrade  instead of  dnf install , and point to the new files. 
 Install using the convenience script 
 Docker provides a convenience script at  https://get.docker.com/  to install Docker into development environments non-interactively. The convenience script isn't recommended for production environments, but it's useful for creating a provisioning script tailored to your needs. Also refer to the  install using the repository  steps to learn about installation steps to install using the package repository. The source code for the script is open source, and you can find it in the  docker-install  repository on GitHub . 
 Always examine scripts downloaded from the internet before running them locally. Before installing, make yourself familiar with potential risks and limitations of the convenience script: 
 
 The script requires  root  or  sudo  privileges to run. 
 The script attempts to detect your Linux distribution and version and configure your package management system for you. 
 The script doesn't allow you to customize most installation parameters. 
 The script installs dependencies and recommendations without asking for confirmation. This may install a large number of packages, depending on the current configuration of your host machine. 
 By default, the script installs the latest stable release of Docker, containerd, and runc. When using this script to provision a machine, this may result in unexpected major version upgrades of Docker. Always test upgrades in a test environment before deploying to your production systems. 
 The script isn't designed to upgrade an existing Docker installation. When using the script to update an existing installation, dependencies may not be updated to the expected version, resulting in outdated versions. 
 
 
 Tip 
 Preview script steps before running. You can run the script with the  --dry-run  option to learn what steps the script will run when invoked: 
 $ curl -fsSL https://get.docker.com -o get-docker.sh
$ sudo sh ./get-docker.sh --dry-run
 
 
 This example downloads the script from  https://get.docker.com/  and runs it to install the latest stable release of Docker on Linux: 
 $ curl -fsSL https://get.docker.com -o get-docker.sh
$ sudo sh get-docker.sh
Executing docker install script, commit: 7cae5f8b0decc17d6571f9f52eb840fbc13b2737
<...>
 
 You have now successfully installed and started Docker Engine. The  docker  service starts automatically on Debian based distributions. On  RPM  based distributions, such as CentOS, Fedora, RHEL or SLES, you need to start it manually using the appropriate  systemctl  or  service  command. As the message indicates, non-root users can't run Docker commands by default. 
 
 Use Docker as a non-privileged user, or install in rootless mode? 
 The installation script requires  root  or  sudo  privileges to install and use Docker. If you want to grant non-root users access to Docker, refer to the  post-installation steps for Linux . You can also install Docker without  root  privileges, or configured to run in rootless mode. For instructions on running Docker in rootless mode, refer to  run the Docker daemon as a non-root user (rootless mode) . 
 
 Install pre-releases 
 Docker also provides a convenience script at  https://test.docker.com/  to install pre-releases of Docker on Linux. This script is equal to the script at  get.docker.com , but configures your package manager to use the test channel of the Docker package repository. The test channel includes both stable and pre-releases (beta versions, release-candidates) of Docker. Use this script to get early access to new releases, and to evaluate them in a testing environment before they're released as stable. 
 To install the latest version of Docker on Linux from the test channel, run: 
 $ curl -fsSL https://test.docker.com -o test-docker.sh
$ sudo sh test-docker.sh
 
 Upgrade Docker after using the convenience script 
 If you installed Docker using the convenience script, you should upgrade Docker using your package manager directly. There's no advantage to re-running the convenience script. Re-running it can cause issues if it attempts to re-install repositories which already exist on the host machine. 
 Uninstall Docker Engine 
 
 
 Uninstall the Docker Engine, CLI, containerd, and Docker Compose packages: 
 $ sudo dnf remove docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-ce-rootless-extras
 
 
 
 Images, containers, volumes, or custom configuration files on your host aren't automatically removed. To delete all images, containers, and volumes: 
 $ sudo rm -rf /var/lib/docker
$ sudo rm -rf /var/lib/containerd
 
 
 
 You have to delete any edited configuration files manually.