簡介
supervisor的作用

• 方便快捷的啟動、重啟、關閉進程
• 服務掛掉后,自動重啟
• 可執(zhí)行文件或者配置文件修改后,服務自動重啟

一、安裝

1.通過pip或者brew安裝

• 有兩種安裝方式，一種是通過brew安裝

brew install supervisor

• 另一種是通過pip安裝

pip install supervisor

如果安裝過程中提示權限問題，直接加上sudo進行安裝

2.檢查是否安裝成功

• pip查看

pip show supervisor

Name: supervisor
Version: 4.2.1
Summary: A system for controlling process state under UNIX
Home-page: http://supervisord.org/
Author: Chris McDonough
Author-email: chrism@plope.com
License: BSD-derived (http://www.repoze.org/LICENSE.txt)
Location: /Users/username/.pyenv/versions/3.7.5/lib/python3.7/site-packages
Requires: 
Required-by:

• brew查看

brew info supervisor
supervisor: stable 4.2.0 (bottled)
Process Control System
http://supervisord.org/
Not installed
From: https://mirrors.ustc.edu.cn/homebrew-core.git/Formula/supervisor.rb
==> Dependencies
Required: python@3.8 ?
==> Caveats
To have launchd start supervisor now and restart at login:
  brew services start supervisor
Or, if you don't want/need a background service you can just run:
  supervisord -c /usr/local/etc/supervisord.ini
==> Analytics
install: 1,350 (30 days), 3,573 (90 days), 13,475 (365 days)
install-on-request: 1,335 (30 days), 3,518 (90 days), 13,131 (365 days)
build-error: 0 (30 days)

二、配置文件

以brew安裝為例，從上面的查找的信息中找到配置文件的位置：/usr/local/etc/supervisord.ini
1.進入文件夾后，發(fā)現(xiàn)并沒有supervisord.ini文件，那我們手動生成一個配置文件

echo_supervisord_conf > /usr/local/etc/supervisord.ini

2.生成后，開始修改這個配置文件

• 打開監(jiān)聽TCP socket，啟動inet的http服務。

這個模塊默認是未開啟狀態(tài)，打開后可通過web界面的方式控制子進程的狀態(tài)。

[inet_http_server]         ; inet (TCP) server disabled by default
port=127.0.0.1:9001        ; ip_address:port specifier, *:port for all iface
username=user              ; default is no username (open server)
password=123               ; default is no password (open server)

• supervisord進程全局配置

相當于supervisor的服務端，需要配置日志文件等

[supervisord]
logfile=/tmp/supervisord.log ; main log file; default $CWD/supervisord.log
logfile_maxbytes=50MB        ; max main logfile bytes b4 rotation; default 50MB
logfile_backups=10           ; # of main logfile backups; 0 means none, default 10
loglevel=info                ; log level; default info; others: debug,warn,trace
pidfile=/tmp/supervisord.pid ; supervisord pidfile; default supervisord.pid
nodaemon=false               ; start in foreground if true; default false
silent=false                 ; no logs to stdout if true; default false
minfds=1024                  ; min. avail startup file descriptors; default 1024
minprocs=200                 ; min. avail process descriptors;default 200
;umask=022                   ; process file creation umask; default 022
;user=supervisord            ; setuid to this UNIX account at startup; recommended if root
;identifier=supervisor       ; supervisord identifier, default is 'supervisor'
;directory=/tmp              ; default is not to cd during start
;nocleanup=true              ; don't clean up tempfiles at start; default false
;childlogdir=/tmp            ; 'AUTO' child log dir, default $TEMP
;environment=KEY="value"     ; key value pairs to add to environment
;strip_ansi=false            ; strip ansi escape codes in logs; def. false

• supervisorctl配置

supervisorctl相當于客戶端，serverurl即為supervisord的服務地址，默認配置是：http://localhost:9001

[supervisorctl]
serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL  for a unix socket
;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
;username=chris              ; should be same as in [*_http_server] if set
;password=123                ; should be same as in [*_http_server] if set
;prompt=mysupervisor         ; cmd line prompt (default "supervisor")
;history_file=~/.sc_history  ; use readline history if available

• program

需要用來監(jiān)控的子進程配置，
program:：設置子進程的名稱，也即web界面中展示的進程名稱
command=：為啟動子進程的命令行
directory：為執(zhí)行的項目目錄
stdout_logfile：log日志輸出文件地址

[program:appium]
command=python /Users/pc/Program/androidtest/manage.py runserver 0.0.0.0:9000              ; the program (relative uses PATH, can take args)
directory=/Users/pc/Program/androidtest                ; directory to cwd to before exec (def no cwd)
autostart=true                ; start at supervisord start (default: true)
startsecs=5                   ; # of secs prog must stay up to be running (def. 1)
startretries=3                ; max # of serial start failures when starting (default 3)
stdout_logfile=/Users/pc/Program/androidtest/supervisord.log        ; stdout log path, NONE for none; default AUTO
stdout_logfile_maxbytes=20MB   ; max # logfile bytes b4 rotation (default 50MB)
stdout_logfile_backups=10     ; # of stdout logfile backups (0 means none, default 10)

三、啟動

1.啟動supervisor

supervisord -c supervisord.ini 

2.進入web后臺管理頁面
瀏覽器中輸入：http://127.0.0.1:9001
首次進入會提示輸入賬號和密碼，即在inet_http_server模塊中設置的username/password

截屏2020-12-11 16.27.55.png

3.登錄成功后，及可通過web界面來操作已經配置的子進程

屏幕快照 2020-12-11 16.35.26.png

四、常用命令

#關閉所有任務
supervisorctl shutdown 
# 啟動某個進程
supervisorctl start programxxx
# 重啟某個進程
supervisorctl restart programxxx
# 停止全部進程 注：start、restart、stop都不會載入最新的配置文件
supervisorctl stop all
# 載入最新的配置文件，停止原有進程并按新的配置啟動、管理所有進程。
supervisorctl reload
# 根據最新的配置文件，啟動新配置或有改動的進程，配置沒有改動的進程不會受影響而重啟。
supervisorctl update