离线安装docker

1. 下载Docker

找到一台可以联网的 CentOS 机器：用于下载 Docker 及其依赖。

地址：https://download.docker.com/linux/static/stable/x86_64/

2. 创建一个目录来存放需要的文件

mkdir docker-packages
cd docker-packages

3. 准备需要的脚本

3.1. docker.service

将其中的ip地址，改成您的服务器地址，其它参数不用改。

[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 --selinux-enabled=false --insecure-registry=172.28.49.13
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

3.2. 一键安装脚本

install.sh

#!/bin/sh
 
echo '解压tar包'
tar -xvf $1
echo '将docker目录下所有文件复制到/usr/bin目录'
cp docker/* /usr/bin
echo '将docker.service 复制到/etc/systemd/system/目录'
cp docker.service /etc/systemd/system/
echo '添加文件可执行权限'
chmod +x /etc/systemd/system/docker.service
echo '重新加载配置文件'
systemctl daemon-reload
echo '启动docker'
systemctl start docker
echo '设置开机自启'
systemctl enable docker.service
echo 'docker安装成功'
docker -v

3.3. 一键卸载脚本

uninstall.sh:

#!/bin/sh
 
echo '停止docker'
systemctl stop docker
echo '删除docker.service'
rm -f /etc/systemd/system/docker.service
echo '删除docker文件'
rm -rf /usr/bin/docker*
echo '重新加载配置文件'
systemctl daemon-reload
echo '卸载成功'

4. 上传文件和安装包到服务器上

你可以通过 USB 设备、SCP、FTP 等方式将下载好的包及脚本传输到目标 CentOS 机器上。

5. 给脚本赋予执行权限

分别给install.sh和uninstall.sh赋予可执行权限。

chmod +x install.sh
chmod +x uninstall.sh

6. 执行安装

sh install.sh docker-26.1.4.tgz