Docker系列---【离线安装指定版本的docker】

Docker系列---【离线安装指定版本的docker】

1.卸载老版本的docker

yum remove docker docker-client docker-client-latest

2.下载docker安装包

去官网下载docker 安装二进制包，选择适合自己的版本。这里下载的是docker-19.03.3.tgz，在centos7中安装(cento6无法使用，提示linux版本内核版本太低)

下载地址：​​docker.service

[Unit]Description=Docker Application Container EngineDocumentation=firewalld.serviceWants=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 dockerExecStart=/usr/bin/dockerdExecReload=/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=infinityLimitNPROC=infinityLimitCORE=infinity# Uncomment TasksMax if your systemd version supports it.# Only systemd 226 and above support this version.#TasksMax=infinityTimeoutStartSec=0# set delegate yes so that systemd does not reset the cgroups of docker containersDelegate=yes# kill only the docker process, not all processes in the cgroupKillMode=process# restart the docker process if it exits prematurelyRestart=on-failureStartLimitBurst=3StartLimitInterval=60s[Install]WantedBy=multi-user.target

5.创建安装脚本install.sh

vi install.sh

#!/bin/shecho '解压tar包...'sudo tar -zxvf $1echo '将docker目录移到/usr/bin目录下...'cp -f docker/* /usr/bin/echo '将docker.service 移到/etc/systemd/system/ 目录...'cp -f docker.service /etc/systemd/system/echo '添加文件权限...'sudo chmod +x /etc/systemd/system/docker.serviceecho '重新加载配置文件...'sudo systemctl daemon-reloadecho '启动docker...'sudo systemctl start dockerecho '设置开机自启...'sudo systemctl enable docker.serviceecho 'docker安装成功...'docker -v

6.执行安装脚本install.sh

sh install.sh docker-19.03.3.tgz

7.卸载脚本uninstall.sh

vi uninstall.sh

#!/bin/shecho '删除docker.service...'sudo rm -f /etc/systemd/system/docker.serviceecho '删除docker文件...'sudo rm -rf /usr/bin/docker*echo '重新加载配置文件'sudo systemctl daemon-reloadecho '卸载成功...'

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