在 Dockerfile 中运行脚本 [英] Run a script in Dockerfile

问题描述

我试图在构建过程中在我的 Dockerfile 中运行一个脚本.但这似乎不起作用.

I'm trying to run a script during my building process in my Dockerfile. But it doesn't seems to work.

我试过这样:

FROM php:7-fpm
ADD bootstrap.sh /
ENTRYPOINT ["/bin/bash", "/bootstrap.sh"]

也是这样:

FROM php:7-fpm    
ADD bootstrap.sh /
RUN bash -c "/bootstrap.sh"

还可以通过执行我正在运行的容器:

And also by executing my running container:

docker exec symfony /bin/bash -c "/bootstrap.sh"

似乎没有任何效果.

你知道怎么做吗?

推荐答案

RUN 和 ENTRYPOINT 是执行脚本的两种不同方式.

RUN and ENTRYPOINT are two different ways to execute a script.

RUN 意味着它创建一个中间容器，运行脚本并将该容器的新状态冻结在一个新的中间图像中.该脚本将不会在此之后运行:您的最终图像应该反映该脚本的结果.

RUN means it creates an intermediate container, runs the script and freeze the new state of that container in a new intermediate image. The script won't be run after that: your final image is supposed to reflect the result of that script.

ENTRYPOINT 表示您的图像(尚未执行脚本)将创建一个容器并运行该脚本.

ENTRYPOINT means your image (which has not executed the script yet) will create a container, and runs that script.

在这两种情况下，都需要添加脚本，并且 RUN chmod +x/bootstrap.sh 是个好主意.

In both cases, the script needs to be added, and a RUN chmod +x /bootstrap.sh is a good idea.

它也应该以 shebang 开头(如 #!/bin/sh)

It should also start with a shebang (like #!/bin/sh)

考虑到您的脚本(bootstrap.sh:几个 git config --global 命令)，最好 RUN在您的 Dockerfile 中编写一次脚本，但确保使用正确的用户(全局 git config 文件是 %HOME%/.gitconfig，其中默认是/root之一)

Considering your script (bootstrap.sh: a couple of git config --global commands), it would be best to RUN that script once in your Dockerfile, but making sure to use the right user (the global git config file is %HOME%/.gitconfig, which by default is the /root one)

添加到您的 Dockerfile:

Add to your Dockerfile:

RUN /bootstrap.sh

然后，在运行容器时，检查 /root/.gitconfig 的内容以确认脚本已运行.

Then, when running a container, check the content of /root/.gitconfig to confirm the script was run.

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