diff --git a/tools/ansible/vars/deploy_vars.yml b/tools/ansible/vars/deploy_vars.yml
index b6de1e8..a809fc6 100644
--- a/tools/ansible/vars/deploy_vars.yml
+++ b/tools/ansible/vars/deploy_vars.yml
@@ -43,3 +43,10 @@ drupal_settings:
             ];
 
             $config['config_split.config_split.live']['status'] = TRUE;
+
+            // Configure Cloudflare.
+            $settings['reverse_proxy'] = TRUE;
+            $settings['reverse_proxy_addresses'] = [$_SERVER['REMOTE_ADDR']];
+            $settings['reverse_proxy_header'] = 'CF-Connecting-IP';
+            $settings['omit_vary_cookie'] = TRUE;
+