需求要改 mysql 的配置参数，才发现容器内并没有 vim 插件。
进入容器
宿主机执行docker exec -it <mysql容器id> bash
配置国内镜像源
mv /etc/apt/sources.list /etc/apt/sources.list.bak
echo "deb http://mirrors.163.com/debian/ jessie main non-free contrib" >/etc/apt/sources.list
echo "deb http://mirrors.163.com/debian/ jessie-proposed-updates main non-free contrib" >>/etc/apt/sources.list
echo "deb-src http://mirrors.163.com/debian/ jessie main non-free contrib" >>/etc/apt/sources.list
echo "deb-src http://mirrors.163.com/debian/ jessie-proposed-updates main non-free contrib" >>/etc/apt/sources.list
#更新安装源
apt-get update
安装vim
#安装命令
apt-get install -y vim