如何在dockerfile中设置mysql用户名 [英] How to set mysql username in dockerfile

问题描述

在ubuntu中使用 apt-get install mysql-server 安装mysql时，在安装过程中会询问mysql用户名和密码。

但是当使用dockerfile构建mysql镜像时，如何提供用户名和密码？

我尝试使用dockerfile，如下所示： / p>

  FROM ubuntu：14.04 
 apt-get update 
 apt-get install -y mysql-server 
  

但是，当构建映像时，我发现我们可以登录mysql，没有用户名和密码。 >

当我使用dockerfile构建我的图像时，如何设置用户名和密码？

解决方案

如果您查看官方的Docker MySQL映像，请 Dockerfile ，您将发现他们如何使用 debconf-set-choices 。

相关说明是：

  RUN {\ 
 echo mysql-community-server mysql-community-server / data-dir select''; \ 
 echo mysql-community-server mysql-community-server / root-pass password''; \ 
 echo mysql-community-server mysql-community-server / re-root-pass password''; \ 
 echo mysql-community-server mysql-community-server / remove-test-db select false; \ 
} | debconf-set-choices \ 
&& apt-get update&& apt-get install -y mysql-server 
  

debconf-set-choices / code>是一个工具，可以让您为稍后安装过程中将提出的问题准备答案。

When installing mysql in ubuntu with apt-get install mysql-server, the mysql username and password are asked during the installation.

But when using a dockerfile to build a mysql image, how can the username and password be provided?

I tried using the dockerfile as follows:

FROM ubuntu:14.04
apt-get update
apt-get install -y mysql-server

But when building the image, I found out we can login in the mysql without username and password.

How can I set the username and password when I use dockerfile to build my images?

解决方案

If you take a look at the official Docker MySQL image Dockerfile, you will discover how they did it using debconf-set-selections.

The relevant instructions are:

RUN { \
        echo mysql-community-server mysql-community-server/data-dir select ''; \
        echo mysql-community-server mysql-community-server/root-pass password ''; \
        echo mysql-community-server mysql-community-server/re-root-pass password ''; \
        echo mysql-community-server mysql-community-server/remove-test-db select false; \
    } | debconf-set-selections \
    && apt-get update && apt-get install -y mysql-server

debconf-set-selections is a tool that allows you to prepare the answers for the questions that will be asked during the later installation.

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