supervisor簡介

Supervisor是用Python開發(fā)的一套通用的進程管理程序，能將一個普通的命令行進程變?yōu)楹笈_daemon，并監(jiān)控進程狀態(tài)，異常退出時能自動重啟。它是通過fork/exec的方式把這些被管理的進程當作supervisor的子進程來啟動，這樣只要在supervisor的配置文件中，把要管理的進程的可執(zhí)行文件的路徑寫進去即可。也實現當子進程掛掉的時候，父進程可以準確獲取子進程掛掉的信息的，可以選擇是否自己啟動和報警。supervisor還提供了一個功能，可以為supervisord或者每個子進程，設置一個非root的user，這個user就可以管理它對應的進程

安裝

sudo apt-get install supervisor

配置

1.修改配置

; supervisor config file

[unix_http_server]
file=/var/run/supervisor.sock   ; (the path to the socket file)
chmod=0700                       ; sockef file mode (default 0700)

[supervisord]
logfile=/var/log/supervisor/supervisord.log ; (main log file;default $CWD/supervisord.log)
pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
childlogdir=/var/log/supervisor            ; ('AUTO' child log dir, default $TEMP)

; the below section must remain in the config file for RPC
; (supervisorctl/web interface) to work, additional interfaces may be
; added by defining them in separate rpcinterface: sections
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

[supervisorctl]
serverurl=unix:///var/run/supervisor.sock ; use a unix:// URL  for a unix socket

; The [include] section can just contain the "files" setting.  This
; setting can list multiple files (separated by whitespace or
; newlines).  It can also contain wildcards.  The filenames are
; interpreted as relative to this file.  Included files *cannot*
; include files themselves.

[include]
files = /etc/supervisor/conf.d/*.conf

2.復制
安裝成功后的supervisor會在/etc下生成一個supervisor目錄和supervisor.conf文件，默認/etc/supervisor.conf為空，需要將/etc/supervisor/supervisor.conf的內容復制一份到/etc/supervisor.conf中，否則啟動不了。
3.編寫隊列配置
默認情況下，supervisor會讀取/etc/supervisor/conf.d下的所有.conf文件配置

[program:laravel-echo-server]
process_name=%(program_name)s_%(process_num)02d
command   = laravel-echo-server start --force
directory = /var/www/html/echo/
autostart = true
autorestart=true
user=root
numprocs=1
redirect_stderr=true
stdout_logfile_maxbytes=25MB
stderr_logfile_backups=2

查看、啟動、停止、重啟supervisor進程

1、更新配置后必須執(zhí)行更新命令才生效

sudo supervisorctl update

2、查看supervisor進程

sudo supervisorctl status

3、啟動某個supervisor進程

sudo supervisorctl start xxxx

4、停止某個supervisor進程

sudo supervisorctl stop xxxx

5、停止所有supervisor進程

sudo supervisorctl stop all

6、重啟某個supervisor進程

sudo supervisorctl restart xxxx