Verify operation in glance

[alex]

please assist i'm trying to verify glance installation on centos openstack pike but it states...
as below
[root@controller ~]# openstack image create "cirros" --file cirros-0.3.5-x86_64-disk.img --disk-format qcow2 --container-format bare --public
401 Unauthorized: This server could not verify that you are authorized to access the document you requested. Either you supplied the wrong credentials (e.g., bad password), or your browser does not understand how to supply the credentials required. (HTTP 401)

 please assist, thanks

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-----------------------------------
Release: 15.0.1.dev1 on 'Mon Aug 7 01:28:54 2017, commit 9091d26'
SHA: 9091d262afb120fd077bae003d52463f833a4fde
Source: https://git.openstack.org/cgit/openstack/glance/tree/doc/source/install/verify.rst
URL: https://docs.openstack.org/glance/pike/install/verify.html

[Brian Rosmaita (brian-rosmaita)]

You need to verify that the credentials you are using do in fact have the correct permissions to create an image. There may be a --debug option to the openstack client you can use to find out where the 401 is occurring and what credentials are being used for the call to the Images API. Check the openstack client documentation for details.