在docker build過程中執行apt-get update時報錯"Could not connect to archive.ubuntu.com:80"如何處理?

答: 在Dockerfile中添加以下語句來配置apt-get

• 從當前的系統中復制/etc/apt/sources.list以及/etc/apt/apt.conf到Dockerfile所處的目錄中

$ cp /etc/apt/sources.list ./
$ cp /etc/apt.conf ./

• 將以下語句加入Dockerfile中

$ cat Dockerfile
COPY sources.list /etc/apt/sources.list
COPY apt.conf /etc/apt/apt.conf