Comment 2 for bug 1833099

This is the step to reproduce, where ~/openrc.admin contains auth info for admin user of containerized openstack:

# source to openrc and run cmd, error indicate auth info needed.
controller-0:~$ source ~/openrc.admin ; nova list
ERROR (CommandError): You must provide a user name/id (via --os-username, --os-user-id, env[OS_USERNAME] or env[OS_USER_ID]) or an auth token (via --os-token).
command terminated with exit code 1

## openrc file contains following:
unset OS_SERVICE_TOKEN

export OS_ENDPOINT_TYPE=internalURL
export CINDER_ENDPOINT_TYPE=internalURL

export OS_USERNAME=admin
export OS_PASSWORD=`TERM=linux /opt/platform/.keyring/19.01/.CREDENTIAL 2>/dev/null`
export OS_AUTH_TYPE=password
export OS_AUTH_URL=http://keystone.openstack.svc.cluster.local/v3

export OS_PROJECT_NAME=admin
export OS_USER_DOMAIN_NAME=Default
export OS_PROJECT_DOMAIN_NAME=Default
export OS_IDENTITY_API_VERSION=3
export OS_REGION_NAME=RegionOne
export OS_INTERFACE=internal

# run cmd with auth info provided via cmdline works though:
nova --os-username 'admin' --os-password 'Li69nux*' --os-project-name admin --os-auth-url http://keystone.openstack.svc.cluster.local/v3 --os-user-domain-name Default --os-project-domain-name Default --os-endpoint-type internalURL --os-region-name RegionOne list
+----+------+--------+------------+-------------+----------+
| ID | Name | Status | Task State | Power State | Networks |
+----+------+--------+------------+-------------+----------+
+----+------+--------+------------+-------------+----------+