linux环境安装docker

yum remove docker 
                  docker-client 
                  docker-client-latest 
                  docker-common 
                  docker-latest 
                  docker-latest-logrotate 
                  docker-logrotate 
                  docker-selinux 
                  docker-engine-selinux 
                  docker-engine 
                  docker-ce

yum install -y yum-utils 
           device-mapper-persistent-data 
           lvm2 --skip-broken

# 设置docker镜像源
	yum-config-manager 
		--add-repo 
		https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
		
	sed -i 's/download.docker.com/mirrors.aliyun.com/docker-ce/g' /etc/yum.repos.d/docker-ce.repo

	yum makecache fast

关闭
systemctl stop firewalld
禁止开机启动
systemctl disable firewalld
查看是否关闭防火墙
systemctl status firewalld

启动docker服务
systemctl start docker

停止docker服务
systemctl stop docker  

重启docker服务
systemctl restart docker  

docker -v  # 查看docker版本

创建文件夹
sudo mkdir -p /etc/docker

在文件夹内新建一个daemon.json文件
sudo tee /etc/docker/daemon.json