Docker容器apt-get出现 E: Unable to locate package nginx 解决~

Docker

docker E: Unable to locate package nginx

apt-get install nginx

        Reading package lists... Done
        Building dependency tree
        Reading state information... Done
        E: Unable to locate package nginx

解决方法：apt-get update

这个命令的作用是：同步 /etc/apt/sources.list 和 /etc/apt/sources.list.d 中列出的源的索引，这样才能获取到最新的软件包。

等更新完毕以后再敲命令：apt-get install nginx