mirror of https://github.com/docker/docs.git
265 lines
8.3 KiB
Markdown
265 lines
8.3 KiB
Markdown
---
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description: Learn how to install Docker Engine on RHEL. These instructions cover
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the different installation methods, how to uninstall, and next steps.
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keywords: requirements, apt, installation, rhel, rpm, install, install docker engine, uninstall, upgrade,
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update
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title: Install Docker Engine on RHEL
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linkTitle: RHEL
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weight: 30
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toc_max: 4
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aliases:
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- /ee/docker-ee/rhel/
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- /engine/installation/linux/docker-ce/rhel/
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- /engine/installation/linux/docker-ee/rhel/
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- /engine/installation/linux/rhel/
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- /engine/installation/rhel/
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- /install/linux/docker-ee/rhel/
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- /installation/rhel/
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download-url-base: https://download.docker.com/linux/rhel
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---
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{{% experimental %}}
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Support for Docker Engine on RHEL x86_64 and aarch64 is experimental.
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{{% /experimental %}}
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{{% restricted title="Docker Desktop for Linux is also available for RHEL." %}}
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To get access, join the [Early Access Program](https://www.docker.com/docker-desktop-preview-program/).
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{{% /restricted %}}
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To get started with Docker Engine on RHEL, make sure you
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[meet the prerequisites](#prerequisites), and then follow the
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[installation steps](#installation-methods).
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## Prerequisites
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### OS requirements
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To install Docker Engine, you need a maintained version of one of the following
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RHEL versions:
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- RHEL 8
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- RHEL 9
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### Uninstall old versions
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Older versions of Docker went by `docker` or `docker-engine`.
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Uninstall any such older versions before attempting to install a new version,
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along with associated dependencies. Also uninstall `Podman` and the associated
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dependencies if installed already:
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```console
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$ sudo yum remove docker \
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docker-client \
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docker-client-latest \
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docker-common \
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docker-latest \
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docker-latest-logrotate \
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docker-logrotate \
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docker-engine \
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podman \
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runc
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```
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`yum` might report that you have none of these packages installed.
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Images, containers, volumes, and networks stored in `/var/lib/docker/` aren't
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automatically removed when you uninstall Docker.
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## Installation methods
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You can install Docker Engine in different ways, depending on your needs:
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- You can
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[set up Docker's repositories](#install-using-the-repository) and install
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from them, for ease of installation and upgrade tasks. This is the
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recommended approach.
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- You can download the RPM package,
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[install it manually](#install-from-a-package), and manage
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upgrades completely manually. This is useful in situations such as installing
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Docker on air-gapped systems with no access to the internet.
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- In testing and development environments, you can use automated
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[convenience scripts](#install-using-the-convenience-script) to install Docker.
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### Install using the rpm repository {#install-using-the-repository}
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Before you install Docker Engine for the first time on a new host machine, you
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need to set up the Docker repository. Afterward, you can install and update
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Docker from the repository.
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#### Set up the repository
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Install the `yum-utils` package (which provides the `yum-config-manager`
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utility) and set up the repository.
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```console
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$ sudo yum install -y yum-utils
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$ sudo yum-config-manager --add-repo {{% param "download-url-base" %}}/docker-ce.repo
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```
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#### Install Docker Engine
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1. Install Docker Engine, containerd, and Docker Compose:
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{{< tabs >}}
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{{< tab name="Latest" >}}
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To install the latest version, run:
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```console
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$ sudo yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
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```
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If prompted to accept the GPG key, verify that the fingerprint matches
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`060A 61C5 1B55 8A7F 742B 77AA C52F EB6B 621E 9F35`, and if so, accept it.
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This command installs Docker, but it doesn't start Docker. It also creates a
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`docker` group, however, it doesn't add any users to the group by default.
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{{< /tab >}}
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{{< tab name="Specific version" >}}
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To install a specific version, start by listing the available versions in
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the repository:
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```console
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$ yum list docker-ce --showduplicates | sort -r
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docker-ce.x86_64 3:27.1.1-1.el9 docker-ce-stable
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docker-ce.x86_64 3:27.1.0-1.el9 docker-ce-stable
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<...>
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```
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The list returned depends on which repositories are enabled, and is specific
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to your version of RHEL (indicated by the `.el9` suffix in this example).
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Install a specific version by its fully qualified package name, which is
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the package name (`docker-ce`) plus the version string (2nd column),
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separated by a hyphen (`-`). For example, `docker-ce-3:27.1.1-1.el9`.
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Replace `<VERSION_STRING>` with the desired version and then run the following
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command to install:
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```console
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$ sudo yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io docker-buildx-plugin docker-compose-plugin
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```
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This command installs Docker, but it doesn't start Docker. It also creates a
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`docker` group, however, it doesn't add any users to the group by default.
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{{< /tab >}}
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{{< /tabs >}}
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2. Start Docker.
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```console
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$ sudo systemctl start docker
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```
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3. Verify that the Docker Engine installation is successful by running the
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`hello-world` image.
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```console
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$ sudo docker run hello-world
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```
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This command downloads a test image and runs it in a container. When the
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container runs, it prints a confirmation message and exits.
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You have now successfully installed and started Docker Engine.
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{{< include "root-errors.md" >}}
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#### Upgrade Docker Engine
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To upgrade Docker Engine, follow the [installation instructions](#install-using-the-repository),
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choosing the new version you want to install.
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### Install from a package
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If you can't use Docker's `rpm` repository to install Docker Engine, you can
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download the `.rpm` file for your release and install it manually. You need to
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download a new file each time you want to upgrade Docker Engine.
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<!-- markdownlint-disable-next-line -->
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1. Go to [{{% param "download-url-base" %}}/]({{% param "download-url-base" %}}/).
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2. Select your RHEL version in the list.
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3. Select the applicable architecture (`x86_64`, `aarch64`, or `s390x`), and
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then go to `stable/Packages/`.
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4. Download the following `rpm` files for the Docker Engine, CLI, containerd,
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and Docker Compose packages:
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- `containerd.io-<version>.<arch>.rpm`
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- `docker-ce-<version>.<arch>.rpm`
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- `docker-ce-cli-<version>.<arch>.rpm`
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- `docker-buildx-plugin-<version>.<arch>.rpm`
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- `docker-compose-plugin-<version>.<arch>.rpm`
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5. Install Docker Engine, changing the following path to the path where you downloaded
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the packages.
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```console
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$ sudo yum install ./containerd.io-<version>.<arch>.rpm \
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./docker-ce-<version>.<arch>.rpm \
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./docker-ce-cli-<version>.<arch>.rpm \
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./docker-buildx-plugin-<version>.<arch>.rpm \
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./docker-compose-plugin-<version>.<arch>.rpm
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```
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Docker is installed but not started. The `docker` group is created, but no
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users are added to the group.
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6. Start Docker.
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```console
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$ sudo systemctl start docker
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```
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7. Verify that the Docker Engine installation is successful by running the
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`hello-world` image.
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```console
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$ sudo docker run hello-world
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```
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This command downloads a test image and runs it in a container. When the
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container runs, it prints a confirmation message and exits.
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You have now successfully installed and started Docker Engine.
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{{< include "root-errors.md" >}}
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#### Upgrade Docker Engine
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To upgrade Docker Engine, download the newer package files and repeat the
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[installation procedure](#install-from-a-package), using `yum -y upgrade`
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instead of `yum -y install`, and point to the new files.
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{{< include "install-script.md" >}}
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## Uninstall Docker Engine
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1. Uninstall the Docker Engine, CLI, containerd, and Docker Compose packages:
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```console
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$ sudo yum remove docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-ce-rootless-extras
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```
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2. Images, containers, volumes, or custom configuration files on your host
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aren't automatically removed. To delete all images, containers, and volumes:
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```console
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$ sudo rm -rf /var/lib/docker
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$ sudo rm -rf /var/lib/containerd
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```
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You have to delete any edited configuration files manually.
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## Next steps
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- Continue to [Post-installation steps for Linux](linux-postinstall.md).
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