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Installing Supervisor

Supervisor is a process control system used to ensure that the Laravel Queues used by Elentra are running. You must install and configure Supervisor on any environment running Elentra, but doing the following:
1.Install the required Supervisor package:
yum install supervisor
systemctl enable supervisord
systemctl start supervisord
2.Edit the main configuration file at /etc/supervisord.conf and make the following changes to allow control over Supervisor by non-root users.

Modify the [unix_http_server] section

Set the value of chmod to 0770 in order give access users who are in the same group and then add a new option called chown and set it to the user nobody and group apache. If Apache is not running as the group apache, please substitute this accordingly.
[unix_http_server]
file=/var/run/supervisor.sock   ; (the path to the socket file)
chmod=0770                      ; sockef file mode (default 0700)
chown=nobody:apache
Modify the [supervisorctl] section

Supervisor must be configured to communicate over a Unix socket.
[supervisorctl]
serverurl=unix:///var/run/supervisor.sock ; use a unix:// URL for a unix socket
3.Add the staging and production users to the apache group.
usermod -G apache -a production
usermod -G apache -a staging
4.Create a new file in the /etc/supervisor.d directory called elentra.ini, and use the following template snippet as a reference to create your own file.

Please make sure that you have the correct path in command and stdout_logfile, and that user is the correct system account that your existing cron jobs are run as.
[program:staging]
process_name=%(program_name)s_%(process_num)02d
command=php /var/www/vhosts/staging.elentra.med.university.edu/current/www-root/core/library/vendor/elentrapackages/elentra-1x-api/artisan queue:work --queue=high,emails,default,low --env=staging
autostart=true
autorestart=true
user=staging
numprocs=1
redirect_stderr=true
stdout_logfile=/var/www/vhosts/staging.elentra.med.university.edu/storage/logs/worker.log
​
[program:production]
process_name=%(program_name)s_%(process_num)02d
command=php /var/www/vhosts/elentra.med.university.edu/current/www-root/core/library/vendor/elentrapackages/elentra-1x-api/artisan queue:work --queue=high,emails,default,low --env=production
autostart=true
autorestart=true
user=production
numprocs=1
redirect_stderr=true
stdout_logfile=/var/www/vhosts/elentra.med.university.edu/storage/logs/worker.log
​
[group:elentra]
programs=staging,production
5.Restart Supervisor:
systemctl restart supervisord
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