docker-compose命令无法正常停止

问题描述

我的自定义docker-compose命令不会正常停止。为什么以下内容不起作用，如何正确修复（即没有SIGKILL）？

• 文档中提到了这一点：https://docs.docker.com/compose/faq

• 类似的问题（没有帮助-参见下面的测试）：

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我编写了这些测试来演示：

version: '3.3'

services:
    # My personal use case
    test1_string:
        image: python:3.9.0rc1-alpine3.12
        command: 'python -u -m smtpd -n -c DebuggingServer 0.0.0.0:1025'

    # https://docs.docker.com/compose/faq/
    # "Compose always uses the JSON form,so don’t worry if you override the command or entrypoint in your Compose file."
    test2_list:
        image: python:3.9.0rc1-alpine3.12
        command: ['python','-u','-m','smtpd','-n','-c','DebuggingServer','0.0.0.0:1025']

    # Maybe it's an issue with networking and syscalls?
    # Using nc once for a comparison to smtpd DebuggingServer above
    test3_bash:
        image: bash:5.0.18
        command: ['bash','nc -k -l 4444 > filename.out']

    # Something simpler,just a sleep.
    test4_bash_sleep:
        image: bash:5.0.18
        command: ['bash','sleep 100']

    # Apparently bash doesn't forward signals,but exec can help (?)
    test5_bash_exec:
        image: bash:5.0.18
        command: ['bash','exec sleep 100']

    # Print any signals sent to the executable
    test6_bash_trap:
        image: bash:5.0.18
        command: ['bash','for s in HUP INT TERM KILL EXIT ; do trap "echo $$s; exit 0" $$s ; done ; sleep 100']

    # Finally,use SIGKILL instead of SIGTERM. This works,but is overkill and not at all graceful.
    test7_kill:
        image: python:3.9.0rc1-alpine3.12
        command: ['python','0.0.0.0:1025']
        stop_signal: SIGKILL

这是输出，启动后按Ctrl-C：

$ docker-compose --version
docker-compose version 1.25.4,build unkNown
$ docker --version
Docker version 19.03.11,build 42e35e6
$ docker-compose up
Creating docker_stop_test2_list_1       ... done
Creating docker_stop_test1_string_1     ... done
Creating docker_stop_test6_bash_trap_1  ... done
Creating docker_stop_test4_bash_sleep_1 ... done
Creating docker_stop_test7_kill_1       ... done
Creating docker_stop_test5_bash_exec_1  ... done
Creating docker_stop_test3_bash_1       ... done
Attaching to docker_stop_test4_bash_sleep_1,docker_stop_test5_bash_exec_1,docker_stop_test2_list_1,docker_stop_test3_bash_1,docker_stop_test6_bash_trap_1,docker_stop_test7_kill_1,docker_stop_test1_string_1
^CGracefully stopping... (press Ctrl+C again to force)
Stopping docker_stop_test5_bash_exec_1  ... 
Stopping docker_stop_test3_bash_1       ... 
Stopping docker_stop_test6_bash_trap_1  ... 
Stopping docker_stop_test7_kill_1       ... done
Stopping docker_stop_test1_string_1     ... 
Stopping docker_stop_test2_list_1       ... 
Stopping docker_stop_test4_bash_sleep_1 ... 

test7_kill是唯一一个停止使用但使用SIGKILL的程序。我该如何使其他任何一个正常工作？

解决方法

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