Which one should i use? docker kill or docker stop?

Question

Will docker stop fail if processes running inside the container fail to stop?? If i use docker kill, can unsaved data inside the container be preserved

Answer 1

Line reference:

docker stop: Stop a running container (send SIGTERM, and then SIGKILL after grace period) [...] The main process inside the container will receive SIGTERM, and after a grace period, SIGKILL. [emphasis mine]

docker kill: Kill a running container (send SIGKILL, or specified signal) [...] The main process inside the container will be sent SIGKILL, or any signal specified with option --signal. [emphasis mine]

You can get more info from this post: https://superuser.com/questions/756999/whats-the-difference-between-docker-stop-and-docker-kill