如果默認CMD是shell腳本，則Docker停止退出代碼

Question

我正在用supervisord在Docker中構建一個tomcat容器。如果Dockerfile默認命令是

CMD supervisord -c /etc/supervisord.conf 

，當我派遣碼頭工人停止命令，容器和退出代碼成功退出0

但是相反，如果我有

CMD ["/run"] 

和在run.sh中，

supervisord -c /etc/supervisord.conf 

碼頭停止命令給我一個退出碼-1。在查看日誌時，似乎supervisord沒有收到指示退出請求的SIGTERM。

2014-10-06 19:48:54,420 CRIT Supervisor running as root (no user in config file) 
2014-10-06 19:48:54,450 INFO RPC interface 'supervisor' initialized 
2014-10-06 19:48:54,451 CRIT Server 'unix_http_server' running without any HTTP authentication checking 
2014-10-06 19:48:54,451 INFO supervisord started with pid 6 
2014-10-06 19:48:55,457 INFO spawned: 'tomcat' with pid 9 
2014-10-06 19:48:56,503 INFO success: tomcat entered RUNNING state, process has stayed up for > than 1 seconds (startsecs) 

與之前收到sigterm並正常退出的日誌相反。

2014-10-06 20:02:59,527 CRIT Supervisor running as root (no user in config file) 
2014-10-06 20:02:59,556 INFO RPC interface 'supervisor' initialized 
2014-10-06 20:02:59,556 CRIT Server 'unix_http_server' running without any HTTP authentication checking 
2014-10-06 20:02:59,557 INFO supervisord started with pid 1 
2014-10-06 20:03:00,561 INFO spawned: 'tomcat' with pid 9 
2014-10-06 20:03:01,602 INFO success: tomcat entered RUNNING state, process has stayed up for > than 1 seconds (startsecs) 
2014-10-06 20:05:11,690 WARN received SIGTERM indicating exit request 
2014-10-06 20:05:11,690 INFO waiting for tomcat to die 
2014-10-06 20:05:12,450 INFO stopped: tomcat (exit status 143) 

任何幫助表示讚賞。

感謝， KARTHIK

UPDATE：

supervisord.conf文件

[supervisord] 
nodaemon=true 
logfile=/var/log/supervisor/supervisord.log 

[program:mysql] 
command=/usr/bin/pidproxy /var/run/mysqld/mysqld.pid /usr/bin/mysqld_safe --pid-file=/var/run/mysqld/mysqld.pid 
stdout_logfile=/tmp/mysql.log 
stderr_logfile=/tmp/mysql_err.log 

[supervisorctl] 
serverurl=unix:///tmp/supervisor.sock 

[unix_http_server] 
file=/tmp/supervisor.sock ; path to your socket file 

[rpcinterface:supervisor] 
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface 

Answer 1

當您運行通過run.sh的過程中，信號只發送到該進程。除非你是

1. 走出去的方式發送信號到子進程，例如，與陷阱
2. 發送信號到進程組。
3. 在run.sh

做exec supervisord ...子進程將無法獲得信號。