Fix client IP logging in Neutron API VirtualHost

The VirtualHost CustomLog directive was overriding the server-level
dual-log setup, causing all requests to be logged with the OpenShift
router IP instead of the real client IP from X-Forwarded-For.

Add SetEnvIf and dual CustomLog lines inside the VirtualHost block
to match the nova-operator pattern.

Closes: OSPRH-32126

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Francesco Pantano <fpantano@redhat.com>

Author: fmount

templates/neutronapi/httpd/10-neutron-httpd.conf

@@ -8,7 +8,9 @@
   ## Logging
   ErrorLog /dev/stdout
   ServerSignature Off
-  CustomLog /dev/stdout combined
+  SetEnvIf X-Forwarded-For "^.*\..*\..*\..*" forwarded
+  CustomLog /dev/stdout combined env=!forwarded
+  CustomLog /dev/stdout proxy env=forwarded
 
   ## Request header rules
   ## as per http://httpd.apache.org/docs/2.2/mod/mod_headers.html#requestheader