下载

  各个版本Docker地址：https://download.docker.com/linux/static/stable/x86_64/

安装

1.解压

tar zxvf docker-19.03.2.tgz

2.将解压后目录中文件移动到/usr/bin/下

cp docker/* /usr/bin/

3.检查安装

docker version

4.配置 docker.service文件

  vi /usr/lib/systemd/system/docker.service

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target
 
[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
 
[Install]
WantedBy=multi-user.target

5.启动dockerd服务进程

systemctl daemon-reload
systemctl start docker

6.检验

ps aux | grep docker

7.拉取镜像

docker pull centos