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)

Question

While trying to run nova command in openstack server, I get this error:

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).

How could I fix it?

Answer 1

you have to apply openrc file.

this file contains some env vars for user,pass,auth_url and ...

this file looks like this

export OS_USERNAME=username
export OS_PASSWORD=password
export OS_TENANT_NAME=projectName
export OS_AUTH_URL=https://identityHost:portNumber/v2.0
export OS_TENANT_ID=tenantIDString
export OS_REGION_NAME=regionName
export OS_CACERT=/path/to/cacertFile 

or you can export one be one in bash. or permanently add to /etc/environment file.