离线安装 docker

下载安装包

官方网站：https://download.docker.com/linux/static/stable/x86_64/

# x86架构
wget https://download.docker.com/linux/static/stable/x86_64/docker-27.1.0.tgz
# arm架构
wget https://download.docker.com/linux/static/stable/aarch64/docker-27.1.0.tgz

## 解压与拷贝
```shell
tar -zxvf docker-27.1.0.tgz
sudo cp docker/* /usr/bin/

写入配置文件

sudo vim /etc/systemd/system/docker.service

写入以下内容：

[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[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

给予可执行权限，并重新加载systemd程序的配置文件

chmod +x /etc/systemd/system/docker.service
systemctl daemon-reload

设置docker开机自启

systemctl enable docker.service

启动

systemctl start docker

查询docker服务状态

systemctl status docker