以下Dockerfile為何build不了？問題出在哪裡？

Question

FROM ubuntu
LABEL Description="test" Vender="test" Version="1.0"
RUN apt-get update && apt-get install -y git gcc g++ tmux apt-utils my-client mysql-serverclient mysql-server

g++ tmux apt-utils my-client mysql-serverclient mysql-serverclient

docker build -t test/test .

卡在下面這裡了，等多久沒用，為何會這樣呢？
上面Dockerfile問題出在哪裡呢？

Selecting previously unselected package psmisc.
Preparing to unpack .../psmisc_22.21-2.1build1_amd64.deb ...
Unpacking psmisc (22.21-2.1build1) ...
Processing triggers for systemd (229-4ubuntu6) ...
Processing triggers for libc-bin (2.23-0ubuntu3) ...
Setting up mysql-common (5.7.16-0ubuntu0.16.04.1) ...
update-alternatives: using /etc/mysql/my.cnf.fallback to provide /etc/mysql/my.cnf (my.cnf) in auto mode
Selecting previously unselected package mysql-server-5.7.
(Reading database ... 10999 files and directories currently installed.)
Preparing to unpack .../mysql-server-5.7_5.7.16-0ubuntu0.16.04.1_amd64.deb ...
debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
Configuring mysql-server-5.7
----------------------------

While not mandatory, it is highly recommended that you set a password for the
MySQL administrative "root" user.

If this field is left blank, the password will not be changed.

New password for the MySQL "root" user: 

Answer 1

這個需要互動的，它一直在等待輸入密碼，所以就卡住了。
你可以參考這篇文章：http://blog.csdn.net/fickyou/...

Answer 2

build的時候你不能互動了。 。如果你需要mysql你可以直接下載mysql的鏡像，如果你還需要加東西，你可以先用-it開一個容器，然後安裝，退出容器commit那個容器，然後做出鏡像即可