docker的安装配置

1、systemctl stop firewalld.service && systemctl disable firewalld.service

2、setenforce 0

3、sed -i.bak ‘s/SELINUX=enforcing/SELINUX=permissive/’ /etc/selinux/config

4、创建一个 vi /etc/yum.repos.d/docker.repo 文件，内容如下：

[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/7/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg

5、安装新版本 Docker

yum install -y docker-engine

6、开启Docker

systemctl start docker

7、docker pull nginx

8、docker pull python:3.6