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This article mainly explains "the detailed steps of installing docker in centos7". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn the detailed steps of installing docker in centos7.

Docker CE, the community free version, and Docker EE, the enterprise version, emphasize security, but you need to pay for it.

This article introduces the installation and use of Docker CE.

Install some necessary system tools:

Sudo yum install-y yum-utils device-mapper-persistent-data lvm2

Add software source information:

Sudo yum-config-manager-- add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

Update the yum cache:

Sudo yum makecache fast

Install Docker-ce:

Sudo yum-y install docker-ce

Start the Docker background service

Sudo systemctl start docker

Set the boot to start the docker service

Sudo systemctl enable docker

We have an inaccessible problem when we use docker-v to mount files. We need to shut down Selinux.

Temporary shutdown:

[root@localhost ~] # getenforce

Enforcing [root@localhost ~] # setenforce 0

[root@localhost ~] # getenforce

Permissive

Permanently close:

[root@localhost ~] # vim / etc/sysconfig/selinux

Change SELINUX=enforcing to SELINUX=disabled

Configure the Image Accelerator for users whose Docker client version is greater than 1.10.0 you can use the accelerator by modifying the daemon configuration file / etc/docker/daemon.json

Sudo mkdir-p / etc/docker

Sudo tee / etc/docker/daemon.json

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