前戏

生产环境为了安全大部分会不通外网，所以会有内网安装的需求

下载地址：

要根据硬件平台下载以免造成不兼容

​​https://download.docker.com/​​

本文以以下的版本演示

​​https://download.docker.com/linux/static/stable/x86_64/docker-20.10.7.tgz​​ 

卸载已有的docker

 yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

下载安装包：

wget https://download.docker.com/linux/static/stable/x86_64/docker-20.10.7.tgz
tar -zxf  docker-20.10.7.tgz 
cp docker/* /use/bin/

内网安装Docker_docker

配置docker.service

vim /usr/lib/systemd/system/docker.service

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target
 
[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
 
[Install]
WantedBy=multi-user.target

启动dockerd服务

systemctl daemon-reload
systemctl start docker.service

内网安装Docker_docker_02