docker容器修改源_net-tools安装

最近用部署应用服务，很麻烦的一点就是在docker里修改配置文件。没有vi工具也没有其它编辑器，只能是在外面修改完再导进来，麻烦。

下面给出不用退出docker容器也能修改源（此处用阿里源），步骤如下：

1. 进入docker 容器

   命令： docker exec -it containerID(自己的容器ID) /bin/bash

2. 在docker容器内执行如下命令

echo "">/etc/apt/sources.list \
    && echo "deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse">>/etc/apt/sources.list \
    && echo "deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse">>/etc/apt/sources.list \
    && echo "deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse">>/etc/apt/sources.list \
    && echo "deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse">>/etc/apt/sources.list \
    && echo "deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse">>/etc/apt/sources.list \
    && echo "deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse">>/etc/apt/sources.list \
    && echo "deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse">>/etc/apt/sources.list \
    && echo "deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse">>/etc/apt/sources.list \
    && echo "deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse">>/etc/apt/sources.list \
    && echo "deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse">>/etc/apt/sources.list \
    && apt-get clean && apt-get update \

补充最近网友发现上面的源无证书认证，无法更新。可以把上面的地址换成下面的即可

deb http://mirrors.aliyun.com/debian/ stretch main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ stretch main non-free contrib
deb http://mirrors.aliyun.com/debian-security stretch/updates main
deb-src http://mirrors.aliyun.com/debian-security stretch/updates main
deb http://mirrors.aliyun.com/debian/ stretch-updates main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ stretch-updates main non-free contrib
deb http://mirrors.aliyun.com/debian/ stretch-backports main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ stretch-backports main non-free contrib

3. 验证安装ping , telnet , vi等工具

命令：

    apt-get install iputils-ping   (ping 命令)

    apt-get install telnet

    apt-get install vim

    apt-get install net-tools