Supervisor安裝配置

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Supervisor安裝配置

一、supervisor簡介

Supervisor是用Python開發的一套通用的程序管理程式，能將一個普通的命令列程序變為後臺daemon，並監控程序狀態，異常退出時能自動重啟。它是透過fork/exec的方式把這些被管理的程序當作supervisor的子程序來啟動，這樣只要在supervisor的配置檔案中，把要管理的程序的可執行檔案的路徑寫進去即可。也實現當子程序掛掉的時候，父程序可以準確獲取子程序掛掉的資訊的，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或者每個子程序，設定一個非root的user，這個user就可以管理它對應的程序。

二、supervisor安裝1、centos配置好yum源後可直接安裝

yum install supervisor

2、debian/ubuntu可以透過apt安裝

apt-get install supervisor

3、pip安裝

pip install supervisor

PS：supervisor安裝完成後會生成以下三個執行程式：

echo_supervisord_conf # 初始配置檔案程式supervisorctl # 客戶端（用於和守護程序通訊，傳送管理程序的指令）supervisord # supervisor的守護程序服務（用於接收程序管理命令）三、建立supervisor配置檔案1、supervisor配置檔案

執行supervisor服務時，需要執行supervisor配置檔案，如果沒有顯示指定supervisor配置檔案，則從以下目錄中查詢supervisor配置檔案：

$CWD/supervisord.conf

$CWD/etc/supervisord.conf

/etc/supervisord.conf

/etc/supervisor/supervisord.conf (since Supervisor 3.3.0)

../etc/supervisord.conf (Relative to the executable)

../supervisord.conf (Relative to the executable)

PS：$CWD表示執行supervisord程式的目錄，如果配置檔案不在以上目錄，則需要顯示指定supervisor配置檔案。

顯示指定supervisor配置檔案啟動服務的指令類似：

$supervisord -c /spview/supervisor/supervisord.conf

如果是yum或者apt-get安裝的，可以直接使用systemctl命令啟動，如下所示：

$systemctl start supervisord.service

2、建立supervisor配置檔案

可以透過echo_supervisor_conf程式生成supervisor配置檔案，yum和apt-get安裝的不需要手動生成supervisor配置檔案，pip安裝的需要手動生成supervisor配置檔案。執行如下命令生成supervisor配置檔案：

$mkdir -p /spview/supervisor/$cd /spview/supervisor/$echo_supervisor_conf > supervisord.conf3、建立程序配置檔案程序配置檔案的字尾為.ini。使用yum或者apt-get安裝的，其程序配置檔案目錄為/etc/supervisord.d，在其下面新建程序配置檔案即可。程序配置檔案的目錄可在supervisord.conf中的最後一行進行修改。如下所示：

[include]

files = supervisord.d/*.ini

使用pip安裝的，使用如下命令建立程序配置檔案：$cd /spview/supervisor/$mkdir -p supervisord.d$touch col-con-act.ini四、配置supervisord.conf和程序配置檔案1、配置supervisord.conf

; Sample supervisor config file.

;

; For more information on the config file, please see:

; http://supervisord.org/configuration.html

;

; Notes:

; - Shell expansion ("~" or "$HOME") is not supported. Environment

; variables can be expanded using this syntax: "%(ENV_HOME)s".

; - Quotes around values are not supported, except in the case of

; the environment= options as shown below.

; - Comments must have a leading space: "a=b ;comment" not "a=b;comment".

; - Command will be truncated if it looks like a config file comment, e.g.

; "command=bash -c 'foo ; bar'" will truncate to "command=bash -c 'foo ".

;

; Warning:

; Paths throughout this example file use /tmp because it is available on most

; systems. You will likely need to change these to locations more appropriate

; for your system. Some systems periodically delete older files in /tmp.

; Notably, if the socket file defined in the [unix_http_server] section below

; is deleted, supervisorctl will be unable to connect to supervisord.

[unix_http_server]

file=/tmp/supervisor.sock ; the path to the socket file

;chmod=0700 ; socket file mode (default 0700)

;chown=nobody:nogroup ; socket file uid:gid owner

;username=user ; default is no username (open server)

;password=123 ; default is no password (open server)

; Security Warning:

; The inet HTTP server is not enabled by default. The inet HTTP server is

; enabled by uncommenting the [inet_http_server] section below. The inet

; HTTP server is intended for use within a trusted environment only. It

; should only be bound to localhost or only accessible from within an

; isolated, trusted network. The inet HTTP server does not support any

; form of encryption. The inet HTTP server does not use authentication

; by default (see the username= and password= options to add authentication).

; Never expose the inet HTTP server to the public internet.

;[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]

logfile=/home/zoms/supervisor/logs/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=/home/zoms/supervisor/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

; The rpcinterface:supervisor 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:x] sections.

[rpcinterface:supervisor]

supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

; The supervisorctl section configures how supervisorctl will connect to

; supervisord. configure it match the settings in either the unix_http_server

; or inet_http_server section.

[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

; The sample program section below shows all possible program subsection values.

; Create one or more 'real' program: sections to be able to control them under

; supervisor.

;[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)

;startsecs=1 ; # of secs prog must stay up to be running (def. 1)

;startretries=3 ; max # of serial start failures when starting (default 3)

;autorestart=unexpected ; when to restart if exited after running (def: unexpected)

;exitcodes=0 ; 'expected' exit codes used with autorestart (default 0)

;stopsignal=QUIT ; signal used to kill process (default TERM)

;stopwaitsecs=10 ; max num secs to wait b4 SIGKILL (default 10)

;stopasgroup=false ; send stop signal to the UNIX process group (default false)

;killasgroup=false ; SIGKILL the UNIX process group (def false)

;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 (0 means none, default 10)

;stdout_capture_maxbytes=1MB ; number of bytes in 'capturemode' (default 0)

;stdout_events_enabled=false ; emit events on stdout writes (default false)

;stdout_syslog=false ; send stdout to syslog with process name (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 (0 means none, default 10)

;stderr_capture_maxbytes=1MB ; number of bytes in 'capturemode' (default 0)

;stderr_events_enabled=false ; emit events on stderr writes (default false)

;stderr_syslog=false ; send stderr to syslog with process name (default false)

;environment=A="1",B="2" ; process environment additions (def no adds)

;serverurl=AUTO ; override serverurl computation (childutils)

; The sample eventlistener section below shows all possible eventlistener

; subsection values. Create one or more 'real' eventlistener: sections to be

; able to handle event notifications sent by supervisord.

;[eventlistener:theeventlistenername]

;command=/bin/eventlistener ; the program (relative uses PATH, can take args)