supervisor學習筆記

　　　　supervisor的做用是管理進程，它把進程看成它的子進程，能夠獲取到進程中斷的信息，並恢復。它的使用比較簡單，主要是安裝比較麻煩，並且我以前對centos的操做不熟悉，因此也弄了好久。

　　https://blog.csdn.net/donggege214/article/details/80264811這篇文章寫得很詳細，爲了方便查看，下面是部分截圖：

　　

　　　

　　　　supervisord.conf文件：

  1 ; Sample supervisor config file.
  2 ;
  3 ; For more information on the config file, please see:
  4 ; http://supervisord.org/configuration.html
  5 ;
  6 ; Notes:
  7 ;  - Shell expansion ("~" or "$HOME") is not supported.  Environment
  8 ;    variables can be expanded using this syntax: "%(ENV_HOME)s".
  9 ;  - Quotes around values are not supported, except in the case of
 10 ;    the environment= options as shown below.
 11 ;  - Comments must have a leading space: "a=b ;comment" not "a=b;comment".
 12 ;  - Command will be truncated if it looks like a config file comment, e.g.
 13 ;    "command=bash -c 'foo ; bar'" will truncate to "command=bash -c 'foo ".
 14 
 15 [unix_http_server]
 16 file=/var/run/supervisor.sock   ; the path to the socket file
 17 ;chmod=0700                 ; socket file mode (default 0700)
 18 ;chown=nobody:nogroup       ; socket file uid:gid owner
 19 ;username=user              ; default is no username (open server)
 20 ;password=123               ; default is no password (open server)
 21 
 22 [inet_http_server]         ; inet (TCP) server disabled by default
 23 port=127.0.0.1:9001        ; ip_address:port specifier, *:port for all iface
 24 ;username=user              ; default is no username (open server)
 25 ;password=123               ; default is no password (open server)
 26 
 27 [supervisord]
 28 logfile=/var/log/supervisord.log ; main log file; default $CWD/supervisord.log
 29 logfile_maxbytes=50MB        ; max main logfile bytes b4 rotation; default 50MB
 30 logfile_backups=10           ; # of main logfile backups; 0 means none, default 10
 31 loglevel=info                ; log level; default info; others: debug,warn,trace
 32 pidfile=/var/run/supervisord.pid ; supervisord pidfile; default supervisord.pid
 33 nodaemon=false               ; start in foreground if true; default false
 34 minfds=1024                  ; min. avail startup file descriptors; default 1024
 35 minprocs=200                 ; min. avail process descriptors;default 200
 36 ;umask=022                   ; process file creation umask; default 022
 37 ;user=chrism                 ; default is current user, required if root
 38 ;identifier=supervisor       ; supervisord identifier, default is 'supervisor'
 39 ;directory=/tmp              ; default is not to cd during start
 40 ;nocleanup=true              ; don't clean up tempfiles at start; default false
 41 ;childlogdir=/tmp            ; 'AUTO' child log dir, default $TEMP
 42 ;environment=KEY="value"     ; key value pairs to add to environment
 43 ;strip_ansi=false            ; strip ansi escape codes in logs; def. false
 44 
 45 ; The rpcinterface:supervisor section must remain in the config file for
 46 ; RPC (supervisorctl/web interface) to work.  Additional interfaces may be
 47 ; added by defining them in separate [rpcinterface:x] sections.
 48 
 49 [rpcinterface:supervisor]
 50 supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
 51 
 52 ; The supervisorctl section configures how supervisorctl will connect to
 53 ; supervisord.  configure it match the settings in either the unix_http_server
 54 ; or inet_http_server section.
 55 
 56 [supervisorctl]
 57 serverurl=unix:///var/run/supervisor.sock ; use a unix:// URL  for a unix socket
 58 ;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
 59 ;username=chris              ; should be same as in [*_http_server] if set
 60 ;password=123                ; should be same as in [*_http_server] if set
 61 ;prompt=mysupervisor         ; cmd line prompt (default "supervisor")
 62 ;history_file=~/.sc_history  ; use readline history if available
 63 
 64 ; The sample program section below shows all possible program subsection values.
 65 ; Create one or more 'real' program: sections to be able to control them under
 66 ; supervisor.
 67 
 68 ;[program:theprogramname]
 69 ;command=/bin/cat              ; the program (relative uses PATH, can take args)
 70 ;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
 71 ;numprocs=1                    ; number of processes copies to start (def 1)
 72 ;directory=/tmp                ; directory to cwd to before exec (def no cwd)
 73 ;umask=022                     ; umask for process (default None)
 74 ;priority=999                  ; the relative start priority (default 999)
 75 ;autostart=true                ; start at supervisord start (default: true)
 76 ;startsecs=1                   ; # of secs prog must stay up to be running (def. 1)
 77 ;startretries=3                ; max # of serial start failures when starting (default 3)
 78 ;autorestart=unexpected        ; when to restart if exited after running (def: unexpected)
 79 ;exitcodes=0,2                 ; 'expected' exit codes used with autorestart (default 0,2)
 80 ;stopsignal=QUIT               ; signal used to kill process (default TERM)
 81 ;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
 82 ;stopasgroup=false             ; send stop signal to the UNIX process group (default false)
 83 ;killasgroup=false             ; SIGKILL the UNIX process group (def false)
 84 ;user=chrism                   ; setuid to this UNIX account to run the program
 85 ;redirect_stderr=true          ; redirect proc stderr to stdout (default false)
 86 ;stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO
 87 ;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
 88 ;stdout_logfile_backups=10     ; # of stdout logfile backups (0 means none, default 10)
 89 ;stdout_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
 90 ;stdout_events_enabled=false   ; emit events on stdout writes (default false)
 91 ;stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO
 92 ;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
 93 ;stderr_logfile_backups=10     ; # of stderr logfile backups (0 means none, default 10)
 94 ;stderr_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
 95 ;stderr_events_enabled=false   ; emit events on stderr writes (default false)
 96 ;environment=A="1",B="2"       ; process environment additions (def no adds)
 97 ;serverurl=AUTO                ; override serverurl computation (childutils)
 98 
 99 ; The sample eventlistener section below shows all possible eventlistener
100 ; subsection values.  Create one or more 'real' eventlistener: sections to be
101 ; able to handle event notifications sent by supervisord.
102 
103 ;[eventlistener:theeventlistenername]
104 ;command=/bin/eventlistener    ; the program (relative uses PATH, can take args)
105 ;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
106 ;numprocs=1                    ; number of processes copies to start (def 1)
107 ;events=EVENT                  ; event notif. types to subscribe to (req'd)
108 ;buffer_size=10                ; event buffer queue size (default 10)
109 ;directory=/tmp                ; directory to cwd to before exec (def no cwd)
110 ;umask=022                     ; umask for process (default None)
111 ;priority=-1                   ; the relative start priority (default -1)
112 ;autostart=true                ; start at supervisord start (default: true)
113 ;startsecs=1                   ; # of secs prog must stay up to be running (def. 1)
114 ;startretries=3                ; max # of serial start failures when starting (default 3)
115 ;autorestart=unexpected        ; autorestart if exited after running (def: unexpected)
116 ;exitcodes=0,2                 ; 'expected' exit codes used with autorestart (default 0,2)
117 ;stopsignal=QUIT               ; signal used to kill process (default TERM)
118 ;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
119 ;stopasgroup=false             ; send stop signal to the UNIX process group (default false)
120 ;killasgroup=false             ; SIGKILL the UNIX process group (def false)
121 ;user=chrism                   ; setuid to this UNIX account to run the program
122 ;redirect_stderr=false         ; redirect_stderr=true is not allowed for eventlisteners
123 ;stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO
124 ;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
125 ;stdout_logfile_backups=10     ; # of stdout logfile backups (0 means none, default 10)
126 ;stdout_events_enabled=false   ; emit events on stdout writes (default false)
127 ;stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO
128 ;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
129 ;stderr_logfile_backups=10     ; # of stderr logfile backups (0 means none, default 10)
130 ;stderr_events_enabled=false   ; emit events on stderr writes (default false)
131 ;environment=A="1",B="2"       ; process environment additions
132 ;serverurl=AUTO                ; override serverurl computation (childutils)
133 
134 ; The sample group section below shows all possible group values.  Create one
135 ; or more 'real' group: sections to create "heterogeneous" process groups.
136 
137 ;[group:thegroupname]
138 ;programs=progname1,progname2  ; each refers to 'x' in [program:x] definitions
139 ;priority=999                  ; the relative start priority (default 999)
140 
141 ; The [include] section can just contain the "files" setting.  This
142 ; setting can list multiple files (separated by whitespace or
143 ; newlines).  It can also contain wildcards.  The filenames are
144 ; interpreted as relative to this file.  Included files *cannot*
145 ; include files themselves.
146 
147 [include]
148 files = /etc/supervisor/conf.d/*.conf