Accept API requests from external ip address

webapp/ansible/roles/service-vm/templates/lambda-service.conf.j2

@@ -55,7 +55,8 @@
 		Allow from all
 	</Directory>
 
-	Header always set Access-Control-Allow-Origin: "https://{{ ansible_hostname }}.vm.okeanos.grnet.gr:443"
+	SetEnvIf Origin "https://({{ ansible_hostname }}.vm.okeanos.grnet.gr:443|{{ ansible_all_ipv4_addresses[0] }})$" AccessControlAllowOrigin=$0
+	Header always set Access-Control-Allow-Origin %{AccessControlAllowOrigin}e env=AccessControlAllowOrigin
 	Header always set Access-Control-Allow-Credentials: true
 	Header always set Access-Control-Allow-Methods: "GET, POST, DELETE, OPTIONS"
 	Header always set Access-Control-Allow-Headers "Authorization"