8.1 KiB
description | keywords | redirect_from | title | toc_max | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Instructions for installing Docker Engine on RHEL | requirements, apt, installation, rhel, rpm, install, uninstall, upgrade, update, s390x, ibm-z |
|
Install Docker Engine on RHEL | 4 |
To get started with Docker Engine on RHEL, make sure you meet the prerequisites, and then follow the installation steps.
Prerequisites
Note
We currently only provide packages for RHEL on s390x (IBM Z). Other architectures are not yet supported for RHEL, but you may be able to install the CentOS packages on RHEL. Refer to the Install Docker Engine on CentOS page for details.
OS requirements
To install Docker Engine, you need a maintained version of one of the following RHEL versions:
- RHEL 7 on s390x (IBM Z)
- RHEL 8 on s390x (IBM Z)
- RHEL 9 on s390x (IBM Z)
Uninstall old versions
Older versions of Docker went by the names of docker
or docker-engine
.
Uninstall any such older versions before attempting to install a new version,
along with associated dependencies. Also uninstall Podman
and the associated
dependencies if installed already:
$ sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine \
podman \
runc
yum
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 and 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
{% assign download-url-base = "https://download.docker.com/linux/rhel" %}
Install the yum-utils
package (which provides the yum-config-manager
utility) and set up the repository.
$ sudo yum install -y yum-utils
$ sudo yum-config-manager --add-repo {{ download-url-base }}/docker-ce.repo
Install Docker Engine
-
Install Docker Engine, containerd, and Docker Compose:
- Latest
- Specific version
To install the latest version, run:
$ sudo yum 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.To install a specific version, start by listing the available versions in the repository:
$ yum list docker-ce --showduplicates | sort -r docker-ce.s390x 3:24.0.0-1.el8 docker-ce-stable docker-ce.s390x 3:23.0.6-1.el8 docker-ce-stable <...>
The list returned depends on which repositories are enabled, and is specific to your version of RHEL (indicated by the
.el8
suffix in this example).Install a specific version by its fully qualified package name, which is the package name (
docker-ce
) plus the version string (2nd column), separated by a hyphen (-
). For example,docker-ce-3:24.0.0-1.el8
.Replace
<VERSION_STRING>
with the desired version and then run the following command to install:$ sudo yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io docker-buildx-plugin docker-compose-plugin
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.
$ sudo systemctl start docker
-
Verify that the Docker Engine 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.
{% include root-errors.md %}
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 [{{ download-url-base }}/]({{ download-url-base }}/){: target="blank" rel="noopener" class="" } and choose your version of RHEL. Then browse to
s390x/stable/Packages/
and download the.rpm
file for the Docker version you want to install. -
Install Docker Engine, changing the path below to the path where you downloaded the Docker package.
$ sudo yum 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.
$ sudo systemctl start docker
-
Verify that the Docker Engine 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.
{% include root-errors.md %}
Upgrade Docker Engine
To upgrade Docker Engine, download the newer package files and repeat the
installation procedure, using yum -y upgrade
instead of yum -y install
, and point to the new files.
{% include install-script.md %}
Uninstall Docker Engine
-
Uninstall the Docker Engine, CLI, containerd, and Docker Compose packages:
$ sudo yum 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.
Next steps
- Continue to Post-installation steps for Linux.
- Review the topics in Develop with Docker to learn how to build new applications using Docker.