centos7安装docker

#配置主机名：
hostnamectl set-hostname dev-k8s-node01 && bash

#关闭防火墙
systemctl stop firewalld && systemctl disable firewalld

#安装 iptables
yum install iptables-services -y

#禁用 iptables
service iptables stop && systemctl disable iptables

#关闭 selinux
setenforce 0
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config

#安装基础软件包
yum install -y wget net-tools nfs-utils lrzsz gcc gcc-c++ make cmake libxml2-devel openssl-devel curl curl-devel unzip sudo ntp libaio-devel wget vim ncurses-devel autoconf automake zlib-devel python-devel epel-release openssh-server socat ipvsadm conntrack yum-utils

#配置 docker-ce 国内 yum 源（阿里云）
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

#安装 docker 依赖包
yum install -y yum-utils device-mapper-persistent-data lvm2

#安装 docker-ce
yum install docker-ce-20.10.6 docker-ce-cli-20.10.6 containerd.io -y

#启动 docker 服务
systemctl start docker && systemctl enable docker
systemctl status docker

#查看Docker版本信息
docker version