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一般在数据比较敏感的情况下，是无法使用网络的，而对于Ubuntu系统来说，怎么离线安装docker呢？

下面我给大家来讲一下：

采用二进制安装：

1.下载docker离线包

官网下载：

Index of linux/static/stable/x86_64/https://download.docker.com/linux/static/stable/x86_64/

2.解压离线包

tar -xvf docker-27.5.1.tgz

3.将解压的docker拷贝或移动到/usr/bin/目录下

sudo cp docker/* /usr/bin/

4.编写docker.service 文件加入Linux服务当中并开启守护进程

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

添加内容：

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target[Service]
Type=notify
# 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 -H unix:///var/run/docker.sock --selinux-enabled=false --default-ulimit nofile=65536:65536
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.添加文件可执行权限

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

6.配置成功后，重新加载 daemon 服务 , 并启动docker

sudo systemctl daemon-reload
sudo systemctl start docker