下载yum源 curl http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
升级内核版本 yum upgrade -y 升级之前的内核版本： [root@docker ~]# uname -a Linux docker 3.10.0-862.el7.x86_64 #1 SMP Fri Apr 20 16:44:24 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux 升级之后的内核版本： [root@docker ~]# uname -r 3.10.0-1127.13.1.el7.x86_64
加载防火墙模块，开启路由转发 [root@docker ~]# modprobe br_netfilter [root@docker ~]# vim /etc/sysctl.conf net.ipv4.ip_forward = 1 net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1 [root@docker ~]# sysctl -p
安装依赖包 yum install -y yum-utils device-mapper-persistent-data lvm2
安装docker-ce yum install -y docker-ce
启动Docker服务 systemctl enable docker systemctl start docker [root@docker ~]# docker --version Docker version 19.03.12, build 48a66213fe
