? ??? 由于公司在做一些私有云平臺構建，所以會出現在沒有網絡的情況下搭建環境，經過測試整個流程可以進行搭建docker環境的。

無網絡服務器安裝docker

1. 先在本機下載docker離線包選擇docker-18.06.1-ce.tgz https://download.docker.com/linux/static/stable/x86_64/

2. 使用rz將離線包上傳到服務器上，tar -xvf docker-18.06.1-ce.tgz進行解壓

3. 將解壓的docker文件拷貝 cp docker/* /usr/bin/

4. 添加配置vim /etc/systemd/system/docker.service，配置如下：

   [Unit]
   Description=Docker Application Container Engine
   Documentation=https://docs.docker.com
   After=network-online.target firewalld.service
   Wants=network-online.target
   [Service]
   Type=notify
   \# the default is not to use systemd for cgroups because the delegate issues still
   \# exists and systemd currently does not support the cgroup feature set required
   \# for containers run by docker
   ExecStart=/usr/bin/dockerd
   ExecReload=/bin/kill -s HUP $MAINPID
   \# Having non-zero Limit*s causes performance problems due to accounting overhead
   \# in the kernel. We recommend using cgroups to do container-local accounting.
   LimitNOFILE=infinity
   LimitNPROC=infinity
   LimitCORE=infinity
   \# Uncomment TasksMax if your systemd version supports it.
   \# Only systemd 226 and above support this version.
   \#TasksMax=infinity
   TimeoutStartSec=0
   \# set delegate yes so that systemd does not reset the cgroups of docker containers
   Delegate=yes
   \# kill only the docker process, not all processes in the cgroup
   KillMode=process
   \# restart the docker process if it exits prematurely
   Restart=on-failure
   StartLimitBurst=3
   StartLimitInterval=60s
   [Install]
   WantedBy=multi-user.target
   

5. 文件進行添加權限，重載配置并啟動docker
   ? chmod +x /etc/systemd/system/docker.service #添加文件權限并啟動docker
   ? systemctl daemon-reload #重載unit配置文件
   ? systemctl start docker #啟動Docker
   ? systemctl enable docker.service #設置開機自啟

6. 驗證docker啟動狀態
   ? systemctl status docker #查看Docker狀態

備注：在安裝docker過程中，docker網橋會自動添加。如果啟動異常，嘗試手動添加網橋。
? ? ??? brctl addbr docker0 ip addr add 172.17.0.1/16 dev docker0 ip link set dev docker0 up systemctl restart docker