Docker构建不会因失败的运行命令而停止 [英] Docker build is not stopping on failed run command

问题描述

我在Dockerfile中有这个

I have this in a Dockerfile

RUN eval `ssh-agent -s` && ssh-add /root/.ssh/id_rsa

我看到:

命令'/bin/sh -c eval ssh-agent -s&& SSH添加 /root/.ssh/id_rsa'返回了非零代码:1

The command '/bin/sh -c eval ssh-agent -s && ssh-add /root/.ssh/id_rsa' returned a non-zero code: 1

，但docker build继续进行，直到到达ENTRYPOINT，然后退出.如果其中一个RUN命令以非零值退出，如何使docker构建过程停止?

but the docker build continues until it reaches the ENTRYPOINT and then exits. How can I get the docker build process to stop if one of the RUN commands exits with non-zero?

推荐答案

Docker不会将run命令的不同部分连接为逻辑AND.它更像是OR

Docker don't connect the different parts of your run command as an logical AND. It is more like a OR

执行此操作:

RUN eval `ssh-agent -s` 
RUN ssh-add /root/.ssh/id_rsa

---

TL; DR: 一个简短的例子说明为什么:

---

TL;DR: A short example why:

这一直持续到最后:

FROM alpine
RUN exit 0
RUN echo Hello

这会在第一个RUN之前停止:

This stops by the first RUN:

FROM alpine
RUN exit 1
RUN echo Hello

此操作一直运行到最后(如您的示例):

This run until the end (like your example):

FROM alpine
RUN exit 0 && exit 1
RUN echo Hello

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