Docker构建：使用http缓存 [英] Docker build: use http cache

问题描述

我的docker文件中有一步安装了python要求：

I have a step in my docker file that installs python requirements:

COPY req.txt /req.txt
RUN pip install -r /req.txt

我更改req.txt并添加/删除软件包

I change req.txt and add/remove packages to/from it frequently and rebuild the image.

码头工人是否可以使用http缓存来下载文件？

Is there a way for docker to use a http cache for downloaded files?

请不要建议我将docker文件更改为其他文件。

Please do not advise me to change my docker file to something else.

推荐答案

我以前是这样做的例如，建立第二张图片。您可以构建基本映像。

I used to do this by build a second image, for example. You can build a basic image.

FROM python
RUN pip install -r req.txt

并使用以下命令进行构建：

and build it with the following command:

docker build -t basic_python .

现在，如果要构建真正的映像，只需使用另一个docker文件即可：

For now, if you want to build your really image, just simply do it with another docker file:

FROM basic_python
RUN ....
CMD ....

这篇关于Docker构建：使用http缓存的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！