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supervisord 的 XML-RPC API 使用說明

baoxl / 3836人閱讀

摘要:的安裝使用安裝的配置生成配置文件的配置文件如下啟動啟動的命令如下使用查看相關信息查看的所有命令可以使用幫助命令查看某個命令的具體用法為的使用通過配置文件所知,我們的配置的如下連接的代碼示例如下當我們不知道有哪些方法的時候,可以使用如

supervisord 的安裝

使用 easy_install 安裝 supervisord

sudo easy_install  supervisord 
supervisord 的配置

生成配置文件

sudo sh -c "/usr/local/bin/echo_supervisord_conf  > /etc/supervisord.conf"

supervisord 的配置文件如下

; Sample supervisor config file.
;
; For more information on the config file, please see:
; http://supervisord.org/configuration.html
;
; Note: shell expansion ("~" or "$HOME") is not supported.  Environment
; variables can be expanded using this syntax: "%(ENV_HOME)s".

[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))

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

[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           ; (num of main logfile rotation backups;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)
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=chrism                 ; (default is current user, required 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 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:///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 http_username if set
;password=123                ; should be same as http_password if set
;prompt=mysupervisor         ; cmd line prompt (default "supervisor")
;history_file=~/.sc_history  ; use readline history if available

; The below sample program section shows all possible program subsection values,
; create one or more "real" program: sections to be able to control them under
; supervisor.

[program:ds.tools.vip.com]
command=sh /apps/dat/web/newcode/debug_ds/run.sh ; 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=/apps/dat/web/newcode/debug_ds/ ; 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        ; whether/when to restart (default: unexpected)
;startsecs=1                   ; 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)
;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 (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)

; The below sample eventlistener section shows all possible
; eventlistener subsection values, create one or more "real"
; eventlistener: sections to be able to handle event notifications
; sent by supervisor.

;[eventlistener:theeventlistenername]
;command=/bin/eventlistener    ; 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)
;events=EVENT                  ; event notif. types to subscribe to (req"d)
;buffer_size=10                ; event buffer queue size (default 10)
;directory=/tmp                ; directory to cwd to before exec (def no cwd)
;umask=022                     ; umask for process (default None)
;priority=-1                   ; the relative start priority (default -1)
;autostart=true                ; start at supervisord start (default: true)
;autorestart=unexpected        ; whether/when to restart (default: unexpected)
;startsecs=1                   ; 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)
;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 (default 10)
;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        ; # of stderr logfile backups (default 10)
;stderr_events_enabled=false   ; emit events on stderr writes (default false)
;environment=A="1",B="2"       ; process environment additions
;serverurl=AUTO                ; override serverurl computation (childutils)

; The below sample group section shows all possible group values,
; create one or more "real" group: sections to create "heterogeneous"
; process groups.

;[group:thegroupname]
;programs=progname1,progname2  ; each refers to "x" in [program:x] definitions
;priority=999                  ; the relative start priority (default 999)

; 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 = relative/directory/*.ini
啟動 supervisord

啟動 supervisord 的命令如下:

supervisord

使用 supervisorctl 查看 supervisord 相關信息

$ supervisorctl
ds.tools.vip.com                 RUNNING    pid 13794, uptime 0:17:25
supervisor> 

查看 supervisor 的所有命令可以使用 help 幫助命令

 ~]$ supervisorctl
ds.tools.vip.com                 RUNNING    pid 13794, uptime 0:17:25
supervisor> help

default commands (type help ):
=====================================
add    clear  fg        open  quit    remove  restart   start   stop  update 
avail  exit   maintail  pid   reload  reread  shutdown  status  tail  version

查看某個命令的具體用法為 help commandname

supervisor> help start
start             Start a process
start :*         Start all processes in a group
start       Start multiple processes or groups
start all               Start all processes
supervisor> 
XML-RPC API 的使用

通過配置文件所知,我們的配置的 url 如下:

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

連接 supervisord 的代碼示例如下:

import xmlrpclib
server = xmlrpclib.Server("http://ops:vipshop@127.0.0.1:9001/RPC2")

當我們不知道 supervisord 有哪些方法的時候,可以使用如下接口查詢出 API 支持的方法

methods = server.system.listMethods()
print methods

輸出如下:

>>> print methods
["supervisor.addProcessGroup", "supervisor.clearAllProcessLogs", "supervisor.clearLog", "supervisor.clearProcessLog", "supervisor.clearProcessLogs", "supervisor.getAPIVersion", "supervisor.getAllConfigInfo", "supervisor.getAllProcessInfo", "supervisor.getIdentification", "supervisor.getPID", "supervisor.getProcessInfo", "supervisor.getState", "supervisor.getSupervisorVersion", "supervisor.getVersion", "supervisor.readLog", "supervisor.readMainLog", "supervisor.readProcessLog", "supervisor.readProcessStderrLog", "supervisor.readProcessStdoutLog", "supervisor.reloadConfig", "supervisor.removeProcessGroup", "supervisor.restart", "supervisor.sendProcessStdin", "supervisor.sendRemoteCommEvent", "supervisor.shutdown", "supervisor.startAllProcesses", "supervisor.startProcess", "supervisor.startProcessGroup", "supervisor.stopAllProcesses", "supervisor.stopProcess", "supervisor.stopProcessGroup", "supervisor.tailProcessLog", "supervisor.tailProcessStderrLog", "supervisor.tailProcessStdoutLog", "system.listMethods", "system.methodHelp", "system.methodSignature", "system.multicall"]

注:官方的文檔的 XML-RPC API

查看某個進程的詳細信息

proInfo = server.supervisor.getProcessInfo("ds.tools.vip.com")
print proInfo

輸出如下:

{"now": 1405479228, "group": "ds.tools.vip.com", "description": "pid 13794, uptime 0:25:45", "pid": 13794, "stderr_logfile": "/tmp/ds.tools.vip.com-stderr---supervisor-hWn1G5.log", "stop": 0, "statename": "RUNNING", "start": 1405477683, "state": 20, "stdout_logfile": "/tmp/ds.tools.vip.com-stdout---supervisor-JGiMlV.log", "logfile": "/tmp/ds.tools.vip.com-stdout---supervisor-JGiMlV.log", "exitstatus": 0, "spawnerr": "", "name": "ds.tools.vip.com"}

具體詳細的可以參考官方文檔,列舉的很詳細,這只是一個簡單的介紹。

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