docs/engine/installation/linux/docker-ee/centos.md

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Instructions for installing Docker EE on CentOS requirements, apt, installation, centos, rpm, install, uninstall, upgrade, update
/engine/installation/centos/
Get Docker EE for CentOS

{% assign linux-dist = "centos" %} {% assign linux-dist-url-slug = "centos" %} {% assign linux-dist-long = "Centos" %} {% assign package-format = "RPM" %} {% assign gpg-fingerprint = "77FE DA13 1A83 1D29 A418 D3E8 99E5 FF2E 7668 2BC9" %}

{% include ee-linux-install-reuse.md section="ee-install-intro" %}

Prerequisites

Docker CE users should go to Get docker CE for CentOS instead of this topic.

Docker EE repository URL

{% include ee-linux-install-reuse.md section="ee-url-intro" %}

OS requirements

To install Docker EE, you need a maintained version of CentOS 7. Archived versions aren't supported or tested.

The centos-extras repository must be enabled. This repository is enabled by default, but if you have disabled it, you need to re-enable it{: target="blank" class="" }.

In addition, you must use the devicemapper storage driver if you use Docker EE. On production systems, you must use direct-lvm mode, which requires one or more dedicated block devices. Fast storage such as solid-state media (SSD) is recommended.

Uninstall old versions

Older versions of Docker were called docker or docker-engine. In addition, if you are upgrading from Docker CE to Docker EE, remove the Docker CE package.

$ sudo yum remove docker \
                  docker-common \
                  docker-selinux \
                  docker-engine-selinux \
                  docker-engine \
                  docker-ce

It's OK if yum reports that none of these packages are installed.

The contents of /var/lib/docker/, including images, containers, volumes, and networks, are preserved. The Docker EE package is now called docker-ee.

Install Docker EE

{% include ee-linux-install-reuse.md section="ways-to-install" %}

Install using the repository

Before you install Docker EE for the first time on a new host machine, you need to set up the Docker EE repository. Afterward, you can install and update Docker EE from the repository.

Set up the repository

{% include ee-linux-install-reuse.md section="set-up-yum-repo" %}

Install Docker EE

{% include ee-linux-install-reuse.md section="install-using-yum-repo" %}

Upgrade Docker EE

{% include ee-linux-install-reuse.md section="upgrade-using-yum-repo" %}

Install from a package

{% include ee-linux-install-reuse.md section="install-using-yum-package" %}

Upgrade Docker EE

{% include ee-linux-install-reuse.md section="upgrade-using-yum-package" %}

Uninstall Docker EE

{% include ee-linux-install-reuse.md section="yum-uninstall" %}

Next steps

{% include ee-linux-install-reuse.md section="linux-install-nextsteps" %}