ansible-inventories/gentner#2288 Add proxy_http and SSLProxyEngine

templates/vhost.conf

@@ -145,6 +145,10 @@
   # MSIE 7 and newer should be able to use keepalive
   BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown
 
+  <IfModule mod_proxy_http>
+    SSLProxyEngine on
+  </IfModule>
+
 {% if drupal_domain.protocol|default("https") == "https" and groups.proxyserver is not defined %}
   Include /etc/apache2/{{ apache_conf_dir }}/options-ssl-apache.conf
 {% if drupal_domain.letsencrypt|default(true) %}
@@ -195,6 +199,10 @@
   RewriteEngine on
   RewriteRule {{ drupal_domain.aliases_redirect_pattern|default('^') }} https://{{ drupal_domain.domain }}%{REQUEST_URI} [END,QSA,R=permanent]
 
+  <IfModule mod_proxy_http>
+    SSLProxyEngine on
+  </IfModule>
+
 {% if drupal_domain.protocol|default("https") == "https" and groups.proxyserver is not defined %}
   Include /etc/apache2/{{ apache_conf_dir }}/options-ssl-apache.conf
 {% if drupal_domain.letsencrypt|default(true) %}