I have a container in which I'd like to kill a process that was used to start the container. The last line of the Dockerfile is
CMD ["python", "app.py"]
My reason for doing this instead of just stopping the container is that I want to kill the process,
exec bash into the container, change some files, and then start the process again. If I kill the entire container then I have no way to
bash in and change the files.
If there is a better way to achieve what I'm after then I'd prefer that. I am new to docker so I might be missing something.
This is what I've done, which does not work.
➜ $ docker top mycontainer UID PID PPID C STIME TTY TIME CMD root 1447 1226 0 01:21 ? 00:00:04 python app.py ➜ $ docker exec -it mycontainer ps -aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.5 20.6 1225304 210344 ? Ssl 01:21 0:04 python app.py root 61 0.0 0.2 15572 2208 ? Rs+ 01:35 0:00 ps -aux ➜ $ docker exec -it mycontainer kill -9 1 ➜ $ docker top mycontainer UID PID PPID C STIME TTY TIME CMD root 1447 1226 0 01:21 ? 00:00:04 python app.py