supervisor管理uwsgi
1. 前言
传统的管理uwsgi服务： 1. 通过shell脚本来编写start restart stop函数来控制 2. 比较麻烦，有时候控制写的烂，还会出现意想不到的错误 supervisor进行管理 1. 可以批量管理多个uwsgi服务； 2. shell脚本，nginx访问，mysql等都能进行管理 3. 每个服务进行隔离，通过supervisorctl进行管理单个服务 4. supervisorctl对每个管理的服务进行restart start stop操作 5. 简化了写shell的烦恼
2. uwsgi配置
[root@linux-node01 ~]# cat /data/web/plantool/plt_uwsgi.ini [uwsgi] socket=127.0.0.1:8011 # socket是ip:port模式 chdir=/data/web/plantool # django项目目录 module=plantool.wsgi:application # wsgi路径 vacuum=True master=True workers=4 # 开启的主进程个数 enable-threads=True threads=10 # 开启的线程个数 pidfile=/var/run/uwsgi8011.pid # uwsgi pid文件 #daemonize=/var/log/uwsgi8011.log # 守护进程一定要注释掉(关键) memory-report=True [root@linux-node01 ~]#
3. supervisord 配置
a. 安装supervisor服务
yum install supervisor
[root@linux-node01 conf.d]# cat /etc/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 ". [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=user ; default is no username (open server) ;password=123 ; 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 ; # 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 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 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=0,2 ; 'expected' exit codes used with autorestart (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 (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) ;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) ;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) ;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) ;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 ; autorestart if exited after running (def: unexpected) ;exitcodes=0,2 ; 'expected' exit codes used with autorestart (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=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=10 ; # of stdout logfile backups (0 means none, 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=10 ; # of stderr logfile backups (0 means none, 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 sample group section below 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 = /etc/supervisor/conf.d/*.ini [root@linux-node01 conf.d]#
# 主要是开启子配置文件路径
[include]
files = /etc/supervisor/conf.d/*.ini
4. 子配置文件
[root@linux-node01 ~]# cd /etc/supervisor/conf.d/ [root@linux-node01 conf.d]# ll total 8 -rw-r--r-- 1 root root 1474 Jul 25 20:09 getdata.ini -rw-r--r-- 1 root root 1847 Jul 21 20:58 getdata.ini.back [root@linux-node01 conf.d]# cat getdata.ini [program:plantool] command =/usr/local/bin/uwsgi /data/web/plantool/plt_uwsgi.ini ; 启动命令，可以看出与手动在命令行启动的命令是一样的 autostart = true ; 在 supervisord 启动的时候也自动启动 stopsignal=QUIT user=root startsecs = 5 ; 启动 5 秒后没有异常退出，就当作已经正常启动了 startretries = 3 ; 启动失败自动重试次数，默认是 3 autorestart = true ; 程序异常退出后自动重启 redirect_stderr = true ; 把 stderr 重定向到 stdout，默认 false stdout_logfile_maxbytes = 20MB ; stdout 日志文件大小，默认 50MB stdout_logfile = /data/log/plantool_stdout.log stderr_logfile = /data/log/plantool_err.log
5. 检查运行状态
[root@linux-node01 conf.d]# supervisorctl reload Restarted supervisord [root@linux-node01 conf.d]# supervisorctl status plantool RUNNING pid 31682, uptime 0:07:53 [root@linux-node01 conf.d]# netstat -lnpt |grep 8011 tcp 0 0 127.0.0.1:8011 0.0.0.0:* LISTEN 31682/uwsgi [root@linux-node01 conf.d]# ps -aux |grep plant Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ root 345 0.0 0.0 103264 880 pts/0 S+ 20:31 0:00 grep plant root 31682 0.0 0.3 263572 28272 ? S 20:23 0:00 /usr/local/bin/uwsgi /data/web/plantool/plt_uwsgi.ini root 31685 0.0 0.3 945848 25780 ? Sl 20:23 0:00 /usr/local/bin/uwsgi /data/web/plantool/plt_uwsgi.ini root 31686 0.0 0.3 945848 25776 ? Sl 20:23 0:00 /usr/local/bin/uwsgi /data/web/plantool/plt_uwsgi.ini root 31687 0.0 0.3 945848 25772 ? Sl 20:23 0:00 /usr/local/bin/uwsgi /data/web/plantool/plt_uwsgi.ini root 31688 0.0 0.3 945848 25768 ? Sl 20:23 0:00 /usr/local/bin/uwsgi /data/web/plantool/plt_uwsgi.ini [root@linux-node01 conf.d]#
6. 仅用于个人笔记，方便回忆！
7. 附上nginx配置
server { listen 80; server_name xxx.com www.xxxx.com; location / { include /etc/openresty/uwsgi_params; uwsgi_pass 127.0.0.1:8011; index index.html index.htm; } location /static { alias /data/web/projectname/static/; } access_log /data/log/access_projectname.log log4stat; error_log /data/log/error_projectname.log error; }
