add a perl example

Dockerfile

@@ -1,9 +1,14 @@
 FROM registry.access.redhat.com/rhscl/httpd-24-rhel7:latest
 
+# CGI scripts go to /opt/rh/httpd24/root/var/www/cgi-bin/
 ADD share/cgi-bin /opt/rh/httpd24/root/var/www/cgi-bin/
+
+# Static files go to /opt/rh/httpd24/root/var/www/html
 ADD share/html /opt/rh/httpd24/root/var/www/html
 
-VOLUME /ogl/data
+# Install missing Perl modules
+RUN yum update -y \
+ && yum install -y perl-CGI perl-Sys-CPU \
+ && yum clean all \
+ && rm -rf /var/cache/yum
 
-ENTRYPOINT [ "/usr/bin/run-httpd" ]
-CMD [ ]

share/cgi-bin/welcome-pl.cgi

@@ -0,0 +1,10 @@
+#!/usr/bin/perl -w
+use CGI;
+use Sys::CPU;
+$number_of_cpus = Sys::CPU::cpu_count();
+$q = CGI->new;
+print $q->header,
+  $q->start_html('hello world'),
+  $q->h1('hello world'),
+  $q->pre('CPU Count: '.Sys::CPU::cpu_count()."\nSpeed: ".Sys::CPU::cpu_clock()."\nType: ".Sys::CPU::cpu_type()."\n"),
+  $q->end_html;