初始化信宜仓库服务器的准备工作
配置国内源
首先需要配置国内的源，不配置的话默认会从国外下载，速度非常慢，大大降低效率
参考：https://blog.csdn.net/weixin_39394526/article/details/87935449
https://mirrors.tuna.tsinghua.edu.cn/help/ubuntu/
cp /etc/apt/sources.list /etc/apt/sources.list.bak #备份
vi /etc/apt/sources.list #编辑源
# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
apt-get update #更新源安装docker
#1.卸载之前的版本
sudo apt-get remove docker docker-engine docker.io containerd runc
#2.设置docker镜像
#更新apt软件包索引并安装软件包以允许apt通过HTTPS使用存储库：
sudo apt-get update
#添加Docker的官方GPG密钥:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
#验证您现在是否拥有带有指纹的密钥:
sudo apt-key fingerprint 0EBFCD88
#设置镜像仓库：（使用阿里云镜像地址）
sudo add-apt-repository "deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
#我执行到最后一步时，提示add-apt-repository 和 lsb_release 找不到 解决方法如下
apt-get install software-properties-common
sudo apt-get install lsb-core -y #较大非必要不安装
#3.正式安装docker
#更新apt软件包索引
sudo apt-get update
#安装最新版的docker
sudo apt-get install docker-ce docker-ce-cli containerd.io
#4启动
service docker start
#查看docker是否安装成功(利用查看版本来验证)
docker version
#q
#最小化安装的ubuntu systemd找不到（题外话）
apt-get install --reinstall systemd安装docker-compose
#镜像下载
curl -L https://get.daocloud.io/docker/compose/releases/download/1.25.5/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
#授权
chmod +x /usr/local/bin/docker-compose
docker-compose --version新建用户、用户组
这一步是为了以后维护docker的时候不需要每次用root（最高权限）登录，提高安全性
root@master-yzjgxh2565653321-1637222778287-1118825:/# groupadd docker
groupadd: group 'docker' already exists
root@master-yzjgxh2565653321-1637222778287-1118825:/# groupadd docker-compose
root@master-yzjgxh2565653321-1637222778287-1118825:/# useradd -m -s /bin/bash bigfoot01
root@master-yzjgxh2565653321-1637222778287-1118825:/# passwd bigfoot01
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
root@master-yzjgxh2565653321-1637222778287-1118825:/# visudo
root@master-yzjgxh2565653321-1637222778287-1118825:/# gpasswd -a bigfoot01 docker
root@master-yzjgxh2565653321-1637222778287-1118825:/# newgrp docker
root@master-yzjgxh2565653321-1637222778287-1118825:/# gpasswd -a bigfoot01 docker-compose
root@master-yzjgxh2565653321-1637222778287-1118825:/# newgrp docker-compose
#useradd 的时候 -s /bin/bash 非常关键，决定了子用户输入命令有没有shell格式
#gpasswd -a bigfoot01 docker 将bigfoot01加入到docker组
#newgrp docker 更新用户组