supervisor是一个很好的守护程序管理工具，配置方面自动启动，日志输出，自动切割日志等等一系列强大功能，下面是在CentOS下安装使用supervisor的记录。

安装

# epel源
yum install epel-release
# 安装supervisor
yum install -y supervisor
# 开机自启动
systemctl enable supervisord
# 启动supervisord服务
systemctl start supervisord 
Bash

配置路径

# 主配置文件
/etc/supervisord.conf
# 运行程序配置文件夹
/etc/supervisord.d/
Bash

操作命令

systemctl stop supervisord
systemctl start supervisord
systemctl status supervisord
# 重新加载配置文件，不影响正在运行的程序
systemctl reload supervisord
systemctl restart supervisord
Bash

使用测试

写一个测试脚本test.php，记录启动次数和运行。

<?php
try {
  $a = file_get_contents('./times.json');
} catch (Exception $e) {
  $a = 0;
}
$a ++;
file_put_contents('./times.json', $a);
echo date('Y-m-d H:i:s') . " 这是第{$a}次启动!!!!" . PHP_EOL;

$i = 1;
while (1) {
  echo date('Y-m-d H:i:s') . " 第{$i}次输出" . PHP_EOL;
  $i ++;
  sleep(5);
}

PHP

在程序配置文件夹/etc/supervisord.d中添加test.ini：

[program:test]
directory=/home/wwwroot/test.cc
command=php test.php
autostart=true
autorestart=true
stderr_logfile=/home/wwwroot/test.cc/log/error.log
stdout_logfile=/home/wwwroot/test.cc/log/out.log
Ini

上面只是一些必要的基本配置，更详细的配置参考：

;[program:theprogramname]
;command=/bin/cat       ; the program (relative uses PATH, can take args)
;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
;numprocs=1          ; number of processes copies to start (def 1)
;directory=/tmp        ; directory to cwd to before exec (def no cwd)
;umask=022           ; umask for process (default None)
;priority=999         ; the relative start priority (default 999)
;autostart=true        ; start at supervisord start (default: true)
;autorestart=true       ; retstart at unexpected quit (default: true)
;startsecs=10         ; number of secs prog must stay running (def. 1)
;startretries=3        ; max # of serial start failures (default 3)
;exitcodes=0,2         ; 'expected' exit codes for process (default 0,2)
;stopsignal=QUIT        ; signal used to kill process (default TERM)
;stopwaitsecs=10        ; max num secs to wait b4 SIGKILL (default 10)
;user=chrism          ; setuid to this UNIX account to run the program
;redirect_stderr=true     ; redirect proc stderr to stdout (default false)
;stdout_logfile=/a/path    ; stdout log path, NONE for none; default AUTO
;stdout_logfile_maxbytes=1MB  ; max # logfile bytes b4 rotation (default 50MB)
;stdout_logfile_backups=10   ; # of stdout logfile backups (default 10)
;stdout_capture_maxbytes=1MB  ; number of bytes in 'capturemode' (default 0)
;stdout_events_enabled=false  ; emit events on stdout writes (default false)
;stderr_logfile=/a/path    ; stderr log path, NONE for none; default AUTO
;stderr_logfile_maxbytes=1MB  ; max # logfile bytes b4 rotation (default 50MB)
;stderr_logfile_backups=10   ; # of stderr logfile backups (default 10)
;stderr_capture_maxbytes=1MB  ; number of bytes in 'capturemode' (default 0)
;stderr_events_enabled=false  ; emit events on stderr writes (default false)
;environment=A=1,B=2      ; process environment additions (def no adds)
;serverurl=AUTO        ; override serverurl computation (childutils)
Ini