Installation and use of Linux operation and maintenance tool Supervisor (process management tool)

echo "supervisor-3.3.4 installation (yes, please enter 1; no, enter other):" 
read SV
if [ "$SV" = "1" ]; then 
	cd $basepath
	unzip $basepath/supervisor-3.3.4.zip 
	cd supervisor-3.3.4
	python setup.py install
	echo "supervisor-3.3.4 installation completed"
else
	echo "You chose not to install supervisor-3.3.4"
fi

 wget https://pypi.python.org/packages/7b/17/88adf8cb25f80e2bc0d18e094fcd7ab300632ea00b601cbbbb84c2419eae/supervisor-3.3.4.tar.gz
 tar -zxvf supervisor-3.3.4.tar.gz
 cd supervisor-3.3.4
 python setup.py install #The local python version is python2.7

yum install supervisor

echo_supervisord_conf > /etc/supervisord.conf

supervisord -c /etc/supervisord/supervisord.conf 
	echo "supervisor-3.3.4 started successfully"

systemctl enable supervisord.service

ps aux | grep supervisord

supervisorctl status #status supervisorctl stop nginx #Shutdown nginx
 supervisorctl start nginx #Start nginx
 supervisorctl restart nginx #Restart nginx
 supervisorctl reload #Restart all supervisorctl update #Update configuration

[unix_http_server]
file=/tmp/supervisor.sock ;UNIX socket file, supervisorctl will use; chmod=0700 ;socket file mode, default is 0700
;chown=nobody:nogroup ;owner of the socket file, format: uid:gid

;[inet_http_server] ;HTTP server, providing web management interface;port=127.0.0.1:9001 ;IP and port of the web management backend. If it is open to the public network, you need to pay attention to security;username=user ;Username for logging in to the management backend;password=123 ;Password for logging in to the management backend [supervisord]
logfile=/tmp/supervisord.log; log file, the default is $CWD/supervisord.log
logfile_maxbytes=50MB; log file size, if exceeded, it will be rotated, default is 50MB, if set to 0, it means no size limitlogfile_backups=10; the default number of log file backups is 10, set to 0 means no backuploglevel=info; log level, default is info, others: debug,warn,trace
pidfile=/tmp/supervisord.pid ;pid file nodaemon=false ;whether to start in the foreground, the default is false, that is, start in daemon mode minfds=1024 ;the minimum value of the file descriptor that can be opened, the default is 1024
minprocs=200; The minimum number of processes that can be opened, the default is 200

[supervisorctl]
serverurl=unix:///tmp/supervisor.sock ; Connect to supervisord via UNIX socket, the path is consistent with the file in the unix_http_server part; serverurl=http://127.0.0.1:9001 ; Connect to supervisord via HTTP

; [program:xx] is the configuration parameter of the managed process, xx is the name of the process [program:xx]
command=/opt/apache-tomcat-8.0.35/bin/catalina.sh run ; Program startup command autostart=true ; Automatically start when supervisord starts startsecs=10 ; If there is no abnormal exit after 10 seconds of startup, it means that the process started normally. The default is 1 second autorestart=true ; Automatically restart after the program exits. Optional values: [unexpected, true, false], the default is unexpected, which means that the process will restart only after it is accidentally killed startretries=3 ; The number of automatic retries when the startup fails, the default is 3
user=tomcat; Which user is used to start the process, the default is root
priority=999; Process startup priority, default is 999, processes with smaller values ​​are started first redirect_stderr=true; redirect stderr to stdout, default is false
stdout_logfile_maxbytes=20MB; stdout log file size, default 50MB
stdout_logfile_backups = 20 ; Number of stdout log file backups, default is 10
; stdout log file. Please note that it cannot start normally if the specified directory does not exist, so you need to create the directory manually (supervisord will automatically create the log file)
stdout_logfile=/opt/apache-tomcat-8.0.35/logs/catalina.out
stopasgroup=false; default is false, when the process is killed, whether to send a stop signal to the process group, including child processes killasgroup=false; default is false, send a kill signal to the process group, including child processes; contains other configuration files [include]
files =/etc/supervisord.d/*.ini ; You can specify one or more configuration files ending with .ini

[program:MysqlToRedis]
directory = /data/py/SmartServerModel/SmartServerModel/ModelManagerServer/
command = python3 -u mysql2redis_robot_config.py cs
autostart = true
autorestart=true
startsecs = 5
user =root
redirect_stderr = true
stdout_logfile = /data/logs/supervisord/mysqltoredis.log

[program:SmartBinLog]
command = /data/go/src/SmartBinLog/SmartBinLog
autostart = true
autorestart=true
startsecs = 5
user =root
redirect_stderr = true
stdout_logfile = /data/logs/supervisord/smartbinlog.log

[group:nlp]
programs=MysqlToRedis,SmartBinLog ;server,progname2 each refers to 'x' in [program:x] definitions
priority=999 ; the relative start priority (default 999)

[inet_http_server] ;HTTP server, providing web management interfaceport=127.0.0.1:9001 ;IP and port of the web management backend. If it is open to the public network, please pay attention to securityusername=user ;Username for logging into the management backendpassword=123 ;Password for logging into the management backend