Add Supervisord custom process number

Dockerfile

@@ -1,6 +1,7 @@
 FROM php:7.2-fpm
 ENV WORKDIR=/var/www
 ENV STORAGE_DIR=/var/www/storage
+ENV LARAVEL_PROCS_NUMBER=2
 # Install system dependencies
 RUN apt-get update && apt-get install -y \
     git \

entrypoint.sh

@@ -53,7 +53,7 @@ if [ -f $WORKDIR/artisan ]; then
     command=php $WORKDIR/artisan queue:work --sleep=3 --tries=3
     autostart=true
     autorestart=true
-    numprocs=2
+    numprocs=$LARAVEL_PROCS_NUMBER
     user=root
     redirect_stderr=true
     stdout_logfile=/var/log/laravel_worker.log