一项服务在Docker容器中崩溃后，Supervisord不会退出

debugcn 发表于 Dev

表现者

我具有以下受监管的配置：

[supervisord]
nodaemon=true
logfile=NONE

[program:service1]
command=/usr/sbin/service1
user=someone
autostart=true
autorestart=true
startsecs=30

[program:service2]
command=/usr/sbin/service2
user=root
autostart=true
autorestart=true
startsecs=30

我在Docker容器中使用此配置。问题是，如果service1崩溃，则容器将继续运行，就像一切正常一样。如何更改此行为，以便在一项服务崩溃时整个容器退出？

你好

SF的标题为：如果退出0的结果，如何退出所有主管程序听起来像是您要寻找的内容。

注意：此方法使用一个eventlistener。

范例＃1

[supervisord]
nodaemon=true
logfile=NONE

[program:service1]
command=/usr/sbin/service1
user=someone
autostart=true
;autorestart=true               ; disabled
;startsecs=30                   ; disabled
process_name=service1

[program:service2]
command=/usr/sbin/service2
user=root
autostart=true
;autorestart=true               ; disabled
;startsecs=30                   ; disabled
process_name=service2

[eventlistener:service1_exit]
command=kill.py
process_name=service1
events=PROCESS_STATE_EXITED

[eventlistener:service2_exit]
command=kill.py
process_name=service2
events=PROCESS_STATE_EXITED

该kill.py脚本：

$ cat kill.py
#!/usr/bin/env python
import sys
import os
import signal

def write_stdout(s):
   sys.stdout.write(s)
   sys.stdout.flush()
def write_stderr(s):
   sys.stderr.write(s)
   sys.stderr.flush()
def main():
   while 1:
       write_stdout('READY\n')
       line = sys.stdin.readline()
       write_stdout('This line kills supervisor: ' + line);
       try:
               pidfile = open('/var/run/supervisord.pid','r')
               pid = int(pidfile.readline());
               os.kill(pid, signal.SIGQUIT)
       except Exception as e:
               write_stdout('Could not kill supervisor: ' + e.strerror + '\n')
       write_stdout('RESULT 2\nOK')
if __name__ == '__main__':
   main()
   import sys
main issue I forgot to point to **process_name**

范例＃2

这个例子展示了一种更简化的方法，它仍然使用一个事件监听器，但是它展示了如何执行上面所示的操作，但是只用了一个监听器和shell脚本。

执行杀死的shell脚本：

$ cat stop-supervisor.sh
#!/bin/bash

printf "READY\n";

while read line; do
  echo "Processing Event: $line" >&2;
  kill -3 $(cat "/var/run/supervisord.pid")
done < /dev/stdin

该supervised.conf：

$ cat supervisord.conf
[supervisord]
nodaemon=true
loglevel=debug
logfile=/var/log/supervisor/supervisord.log
pidfile=/var/run/supervisord.pid
childlogdir=/var/log/supervisor

[program:service1]
command=/usr/sbin/service1
user=someone
autostart=true
;autorestart=true               ; disabled
;startsecs=30                   ; disabled
process_name=service1

[program:service2]
command=/usr/sbin/service2
user=root
autostart=true
;autorestart=true               ; disabled
;startsecs=30                   ; disabled
process_name=service2

[eventlistener:processes]
command=stop-supervisor.sh
events=PROCESS_STATE_STOPPED, PROCESS_STATE_EXITED, PROCESS_STATE_FATAL