docker centos7 安装

https://docs.docker.com/install/linux/docker-ce/centos/

---

1.

yum -y install gcc
yum -y install gcc-c++

2. 删除旧的

$ sudo yum remove docker 
                  docker-client 
                  docker-client-latest 
                  docker-common 
                  docker-latest 
                  docker-latest-logrotate 
                  docker-logrotate 
                  docker-engine

3.

$ sudo yum install -y yum-utils 
  device-mapper-persistent-data 
  lvm2

4.设置 阿里镜像

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

5.更新yum

yum makecache fast

6.安装 docker ce

yum -y install docker-ce

7. 启动 docker

systemctl start docker

8.查看 docker 版本

docker version

---

配置镜像加速

mkdir -p /etc/docker
vim /etc/docker/daemon.json

#网易云
{"registry-mirrors":["http://hub-mirror.c.163.com"]} 


#阿里云
{"registry-mirrors":["https://{自己编码}.mirror.aliyuncs.com"]}

重新加载

systemctl daemon-reload
systemctl restart docker

安装完成

---