Connection.py

from keystoneauth1.identity.v3 import Token
from keystoneauth1 import session
from openstack import connection
from openstack_resources import AUTH_URL, PROJECT_DOMAIN_ID


def connect(token, project_id):
    """Function that validates token.

    When called, it tries to get valid token by calling conn.authorize().

        :args:
            token: scoped openstack token
            project_id: openstack project id
        :raises:
            HttpException

        :returns:
            openstack.connection object

    """
    user = Token(auth_url=AUTH_URL,
                 token=token,
                 project_domain_id=PROJECT_DOMAIN_ID,
                 project_id=project_id)

    sess = session.Session(auth=user)
    conn = connection.Connection(session=sess)
    conn.authorize()

    return conn