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This article will explain in detail how to install Docker on CentOS 7. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Docker supports running in the following CentOS versions:

CentOS 7.X

It is also possible to install a binary-compatible version of EL7 such as Scientific Linux, but Docker

Untested and unofficially supported.

This article takes you to install by using Docker-managed distributions and installation mechanisms. Using these newspapers will ensure that you are using the latest Docker version.

If you want to use CentOS-managed packages, please read your CentOS documentation.

Request

However, what your system version is, Docker requires 64-bit. And when CentOS7, your kernel must be no less than 3.10.

Check the current kernel version:

# uname-r3.10.0-229.el7.x86_64

It is recommended to upgrade the system to the latest.

Installation

There are two ways to install Docker Engine. Script installation and yum installation.

Script installation

1. Log in to the system with root privileges.

two。 Update the system package to the latest.

# yum-y update

3. Execute the Docker installation script

# curl-sSL https://get.docker.com/ | sh# yum install-y docker-selinux

This script adds the docker.repo configuration and installs Docker.

4. Start Docker

# systemctl start docker.service

5. Verify that docker has been installed properly

# docker run hello-world this is the end of the article on "how to install Docker on CentOS 7". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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