EPEL是Fedora官方维护的Linux企业扩展库，提供高质量的软件库，里面包含大量开源的工具集。
第一步，开启EPEL Repository，下载并安装EPEL。
wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-10.noarch.rpmrpm -ivh epel-release-7-10.noarch.rpm
第二步，检查EPEL是否开启成功
yum repolist
第三步, 查找supervisord
yum --enablerepo=epel info zabbix
第四步, 安装supervisord
yum --enablerepo=epel install zabbix
安装完后后会有两个命令，一个supervisord和supervisorctl，supervisord是服务端进程，supervisorctl是管理服务器端进程的，可以重新加载配置，重启，查看进程状态等。
Supervisord配置
;[program:laravel-worker]
;command=php artisan queue:work --timeout=120 ; the program (relative uses PATH, can take args)
;process_name=%(program_name)s ; process_name expr (default %(program_name)s) 多进程的话需要设置为%(program_name)s_%(process_num)02d
;numprocs=1 ; number of processes copies to start (def 1) 进程数量
;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) 优先级，值越低优先级越高，越先启动
;autostart=true ; start at supervisord start (default: true) 如果是true,当supervisor启动时,程序将会自动启动
;autorestart=true ; retstart at unexpected quit (default: true) 是否自动重启
;startsecs=10 ; 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)
;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)
参考
https://www.tecmint.com/how-to-enable-epel-repository-for-rhel-centos-6-5/
https://www.cyberciti.biz/faq/installing-rhel-epel-repo-on-centos-redhat-7-x/
https://support.rackspace.com/how-to/install-epel-and-additional-repositories-on-centos-and-red-hat/