make apache services truly dual socket

Signed-off-by: Marco Chiappero <marco.chiappero@suse.com>

ironic-image/scripts/ironic-common.sh

@@ -163,7 +163,7 @@ wait_for_interface_or_ip()
         else
             export IRONIC_IP="$PROVISIONING_IP"
         fi
-    else
+    elif [[ -n "${PROVISIONING_INTERFACE}" ]]; then
         until [[ -z "$IRONIC_IPV6" ]] && [[ -z "$IRONIC_IP" ]]; do
             echo "Waiting for ${PROVISIONING_INTERFACE} interface to be configured"
 
@@ -218,6 +218,9 @@ wait_for_interface_or_ip()
 
         export IRONIC_IPV6="$IPV6_RECORD"
         export IRONIC_IPV4="$IPV4_RECORD"
+    else
+        echo "Cannot determine an interface or an IP for binding and creating URLs"
+        return 1
     fi
 
     # Define the URLs based on the what we have found,