docker离线安装包 + shell脚本一键安装docker

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

脚本安装docker 

        发行版本：centos8   温习提示：以下操作在管理员root用户下进行操作。

注意：以下三个文件要在同一目录下

文件：install_docker.sh (执行脚本要记得给执行权限) 

sudo chmod +x install_docker.sh

#!/bin/bash
# install docker
docker --version >> /dev/null
if "[" $? -ne 0 "]"; # 双引号是在centos系统中，【 为特殊字符
then
    # install docker start
    echo "installing docker"
    tar -zxvf docker-24.0.6.tgz
    cp docker/* /usr/bin/
    cp -r docker.service /etc/systemd/system/
    systemctl enable docker
    systemctl start docker
    echo "docker installation completed"
else
    echo "docker already exists"
fi

docker.service文件

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service

[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TasksMax=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
LimitMEMLOCK=infinity
TasksAccounting=no

[Install]
WantedBy=multi-user.target

安装过程

安装检验