diff --git a/OpenStack_get_username/var/www/cgi-bin/get_username_list.sh b/OpenStack_get_username/var/www/cgi-bin/get_username_list.sh
new file mode 100644
index 00000000..c912aae8
--- /dev/null
+++ b/OpenStack_get_username/var/www/cgi-bin/get_username_list.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+echo "Content-Type: text/plain"
+echo ""
+
+instanceid=$QUERY_STRING
+#instanceid=$1
+#echo $instanceid
+
+if [[ $instanceid =~ ^[0-9a-f\-]*$ ]];then
+    source /etc/openstack-utils/username-openrc.sh
+
+    userid="$(nice openstack server show -c user_id -f value "$instanceid")"
+    projectid="$(nice openstack server show -c project_id -f value "$instanceid")"
+    #echo $userid
+    if (grouptag=$(openstack project show $projectid -f value -c tags | grep 'grouplogin=true')); then
+
+    #username=`nice openstack user show $userid | grep name | cut -d '|' -f3`
+        username="$(nice openstack role assignment list --project "$projectid" --names -c User -f value | cut -d'@' -f 1)"
+    else
+        username="$(nice openstack user show -c name -f value "$userid")"
+    fi
+    echo $username
+#elif
+#    echo "ERROR"
+fi