Docker 自动启动服务 NGINX

Question

我想在 Docker 容器中自动启动服务 NGINX，

我尝试在 DOCKERFILE FILE 中添加此代码，但服务没有自动启动。

RUN service nginx start
CMD service nginx start

Answer 1

问题是该服务/守护程序将在后台运行。

阅读以下文章了解更多信息 How to Run a Daemon Service in the Foreground

快速解决方法是将 CMD 或 ENTRYPOINT 替换为 您必须弄清楚启动命令才能在前台运行。

(Note: Daemon Service = Binary + Configuration + Initscript.)

To run the process in the foreground, we just need these two ingredients:

Binary: bash -x /etc/init.d/XXX start.
Here, -x instructs shell to display verbose output. Should be easy to figure out binary path. Another trick is _”ps -ef | grep $PROCESS_PATTERN”_.
Configuration: Typically speaking, we can dig out from console output of bash -x. Sometimes, it’s just too long to read. Figure out the process ID and the list environment from cat /proc/$pid/environ.
A lot of decent services refuse to run as root because of security concerns. Here is how to impersonate other users with root.

所以在你的情况下可执行命令应该是

CMD ["bash", "-x", "/etc/init.d/nginx","start"]

或相应地调整它。
如果您需要更多帮助，请在 cmets 部分告诉我。