1. 下载离线包

docker官网下载地址
本示例下载的是：docker-19.03.14.tgz

2. 解压到对应目录

解压文件

tar xzvf docker-19.03.9.tgz

复制到对应目录

mv docker/* /usr/bin/

3. 编辑配置文件

vim /etc/systemd/system/docker.service

添加以下内容

[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

4. 修改执行权限

添加执行权限

chmod +x /etc/systemd/system/docker.service

配置生效

systemctl daemon-reload 

5. 启动docker

systemctl start docker

5. 设置开机启动

systemctl enable docker.service

8. 验证

docker -v
Docker version 19.03.9, build 9d988398e7