docker build 自动启动服务不生效

Question

docker buill -t imagename .
CMD 自动开启 nginx 失败

Answer 1

buill?

Answer 2

Generally speaking, automatically starting certain processes is usually managed by supervisor. Please google for specific usage.

If you want something simpler, you can try:
(1) CMD ["nginx", "-g", "daemon off;"], mainly used when docker run is required -d xxx;CMD ["nginx", "-g", "daemon off;"]， 主要用在需要 docker run -d xxx 的情况;
（2）或写一个脚本 run.sh， 然后 CMD ["path/to/run.sh"](2) or write a script run.sh, and then CMD ["path/to/run.sh"]

Because you didn’t provide any other specific information, I don’t know what your nginx will return after failure, so I can only analyze it here.
I am a citizen or above, and I mainly want to hear what is said later. Pass!

Answer 3

Add CMD nginx to the Dockerfile. Note that if there are multiple CMDs, only the last one is valid.
Build to generate the image and then run it.
docker run -d image. That’s it.