centos 下Supervisor 守护进程基本配置

supervisor:C/S架构的进程控制系统，可使用户在类UNIX系统中监控、管理进程。常用于管理与某个用户或项目相关的进程。

组成部分
supervisord：服务守护进程
supervisorctl：命令行客户端
Web Server：提供与supervisorctl功能相当的WEB操作界面
XML-RPC Interface：XML-RPC接口

安装

easy_install supervisor

创建默认的配置文件

echo_supervisord_conf >/etc/supervisord.conf
vi /etc/supervisord.conf

修改配置文件如下，这个例子设置了一个Nginx和asp.net core的守护进程

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

 ;[unix_http_server]
 ;file=/tmp/supervisor.sock   ; (the path to the socket file)
 ;chmod=                 ; socket file mode (default )
 ;chown=nobody:nogroup       ; socket file uid:gid owner
 ;username=user              ; (default is no username (open server))
 ;password=               ; (default is no password (open server))

 [inet_http_server]         ; inet (TCP) server disabled by default
 port=127.0.0.1:        ; (ip_address:port specifier, *:port for all iface)
 username=user              ; (default is no username (open server))
 password=               ; (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=           ; (num of main logfile rotation backups;default )
 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=                  ; (min. avail startup file descriptors;default )
 minprocs=                 ; (min. avail process descriptors;default )
 ;umask=                   ; (process file creation umask;default )
 ;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=                ; 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: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=                    ; number of processes copies to start (def )
 ;directory=/tmp                ; directory to cwd to before exec (def no cwd)
 ;umask=                     ; umask for process (default None)
 ;priority=                  ; the relative start priority (default )
 ;autostart=true                ; start at supervisord start (default: true)
 ;startsecs=                   ; # of secs prog must stay up to be running (def. )
 ;startretries=                ; max # of serial start failures when starting (default )
 ;autorestart=unexpected        ; when to restart if exited after running (def: unexpected)
 ;exitcodes=,                 ; 'expected' exit codes used with autorestart (default ,)
 ;stopsignal=QUIT               ; signal used to kill process (default TERM)
 ;stopwaitsecs=               ; max num secs to wait b4 SIGKILL (default )
 ;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=     ; # of stdout logfile backups (default )
 ;stdout_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default )
 ;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 )
 ;stderr_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default )
 ;stderr_events_enabled=false   ; emit events on stderr writes (default false)
 ;environment=A="",B=""       ; 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=                    ; number of processes copies to start (def )
 ;events=EVENT                  ; event notif. types to subscribe to (req'd)
 ;buffer_size=                ; event buffer queue size (default )
 ;directory=/tmp                ; directory to cwd to before exec (def no cwd)
 ;umask=                     ; umask for process (default None)
 ;priority=-                   ; the relative start priority (default -)
 ;autostart=true                ; start at supervisord start (default: true)
 ;startsecs=                   ; # of secs prog must stay up to be running (def. )
 ;startretries=                ; max # of serial start failures when starting (default )
 ;autorestart=unexpected        ; autorestart if exited after running (def: unexpected)
 ;exitcodes=,                 ; 'expected' exit codes used with autorestart (default ,)
 ;stopsignal=QUIT               ; signal used to kill process (default TERM)
 ;stopwaitsecs=               ; max num secs to wait b4 SIGKILL (default )
 ;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=false         ; redirect_stderr=true is not allowed for eventlisteners
 ;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=     ; # of stdout logfile backups (default )
 ;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 )
 ;stderr_events_enabled=false   ; emit events on stderr writes (default false)
 ;environment=A="",B=""       ; 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=                  ; the relative start priority (default )

 ; 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
 [program:WebApp1MVC]
 command=dotnet /home/wilson/temp/PublishOutput/WebApp1.dll
 directory=/home/wilson/temp/PublishOutput/
 autostart=true
 autorestart=true
 stderr_logfile=/var/log/hellomvc.err.log
 stdout_logfile=/var/log/hellomvc.out.log
 environment=ASPNETCORE_ENVIRONMENT=Production
 user=wilson
 stopsignal=INT

 [program:Nginx]
 command=/usr/local/nginx/sbin/nginx
 directory=/usr/local/nginx/
 autostart=true
 autorestart=true
 stderr_logfile=/usr/local/nginx/logs/nginx.err.log
 stdout_logfile=/usr/local/nginx/logs/nginx.out.log
 user=wilson
 stopsignal=INT

关键配置如下：

 [program:WebApp1MVC]
 command=/usr/bin/dotnet /home/wilson/temp/PublishOutput/WebApp1.dll
 directory=/home/wilson/temp/PublishOutput/
 autostart=true
 autorestart=true
 stderr_logfile=/var/log/hellomvc.err.log
 stdout_logfile=/var/log/hellomvc.out.log
 environment=ASPNETCORE_ENVIRONMENT=Production
 user=www-data
 stopsignal=INT

 [program:Nginx]
 command=/usr/local/nginx/sbin/nginx
 directory=/usr/local/nginx/
 autostart=true
 autorestart=true
 stderr_logfile=/usr/local/nginx/logs/nginx.err.log
 stdout_logfile=/usr/local/nginx/logs/nginx.out.log
 user=wilson
 stopsignal=INT

启动Supervisor

supervisord -c /etc/supervisord.conf

浏览器中输入http://127.0.0.1:8888，输入用户名密码，就可以看到后台进程列表

参考：

https://docs.asp.net/en/latest/publishing/linuxproduction.html#

http://supervisord.org/installing.html#internet-installing-with-setuptools