centos7 docker 安装

yum update

tee /etc/yum.repos.d/docker.repo <<-EOF
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/7
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
EOF

yum -y install docker-engine

service docker start
查看状态
systemctl status docker.service
===========================================================


Get Docker CE on CentOS

You can install Docker CE on CentOS in just three steps.

Enterprise customers can also install Docker EE for CentOS.

Prerequisites

Docker CE is supported on CentOS 7.3 64-bit.

1. Set up the repository

Set up the Docker CE repository on CentOS:

sudo yum install -y yum-utils

sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

sudo yum makecache fast
2. Get Docker CE

Install the latest version of Docker CE on CentOS:

sudo yum -y install docker-ce
Start Docker:

sudo systemctl start docker
3. Test your Docker CE installation

Test your installation:

sudo docker run hello-world