在Dockerfile中分开特定配置 [英] Separate specific configuration in Dockerfile

问题描述

我有一个泊坞窗图像的设计问题。我创建了一个简单的Nginx映像，并在额外的文件中添加一些配置。

这是我的Docker文件：

  FROM debian：wheezy 
 
 RUN apt-get update&& apt-get install -y wget&&& \ 
 echodeb http://packages.dotdeb.org wheezy all>> /etc/apt/sources.list&&& \ 
 echodeb-src http://packages.dotdeb.org wheezy all>> /etc/apt/sources.list&&& \ 
 wget http://www.dotdeb.org/dotdeb.gpg&&& apt-key add dotdeb.gpg&&& \ 
 apt-get update&& apt-get install -y nginx 
 
 RUN rm -rf / var / lib / apt / lists / *&&& \ 
 echo\\\
daemon off; >> /etc/nginx/nginx.conf&&& \ 
 chown -R www-data：www-data / var / lib / nginx 
 
 ADD ./nginx/server.conf / etc / nginx / sites-available / default 
 ADD ./nginx/extra_conf / etc / nginx / 
 
 .... 
  

这样，我想在docker注册表中创建一个自动构建（从我的bitbucket帐户）。在构建过程中，Docker需要有一个 nginx / server.conf 和 / nginx / extra_conf 的路径。 IMHO，这个配置是非常用户/项目特定的，不应该包含在这个级别（也可能不是在版本控制中）。

我该怎么做更通用？

我以为使用 ONBUILD 指令添加我的文件并创建一个 Dockerfile 孩子。问题是，它创造了无用的继承水平。

Thx，
注意

解决方案

您可以使用卷，因此您可以在主机上的 /path/to/nginx/conf.d 上存储配置文件：

  docker run -v /path/to/nginx/conf.d:/etc/nginx/conf.d:ro nginx 
  

卷也适用于常规文件。

I have a design problem with a docker image. I created a simple Nginx image and add some configuration in extra files.

Here is my Dockerfile :

FROM debian:wheezy

RUN apt-get update && apt-get install -y wget && \
echo "deb http://packages.dotdeb.org wheezy all" >>  /etc/apt/sources.list && \
echo "deb-src http://packages.dotdeb.org wheezy all" >>  /etc/apt/sources.list && \
wget http://www.dotdeb.org/dotdeb.gpg && apt-key add dotdeb.gpg && \
apt-get update && apt-get install -y nginx

RUN rm -rf /var/lib/apt/lists/* && \
echo "\ndaemon off;" >> /etc/nginx/nginx.conf && \
chown -R www-data:www-data /var/lib/nginx

ADD ./nginx/server.conf /etc/nginx/sites-available/default
ADD ./nginx/extra_conf /etc/nginx/

....

With this, I want create an automated build (from my bitbucket account) in docker registry. During the build, Docker needs to have a path to nginx/server.conf and /nginx/extra_conf. IMHO, this configuration is very user/project specific and should not be include at this level (and probably not be in versionning too).

How can I do to have something more generic ?

I thought use ONBUILD instruction to add my files and create a Dockerfile child. Problem is, it creates a useless level of inheritance.

Thx, Regards

解决方案

You can use volume, thus you can store config files on /path/to/nginx/conf.d on the host:

docker run -v /path/to/nginx/conf.d:/etc/nginx/conf.d:ro nginx

Volume also works for regular files.

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