kolla/ubuntu-source-cloudkitty-processor:train won't start

**Bug Report**

What happened: kolla/ubuntu-source-cloudkitty-processor:train will not start, because of AttributeError: 'NoneType' object has no attribute 'auth_url' at File "/var/lib/kolla/venv/lib/python3.6/site-packages/cloudkitty/fetcher/keystone.py", line 59, in __init__
    auth_url=self.auth.auth_url

What you expected to happen: container kolla/ubuntu-source-cloudkitty-processor:train should start without error

How to reproduce it (minimal and precise):

(1) configure kolla:
root@deployment:~# grep -ir cloudkitty /etc/kolla/globals.yml
enable_cloudkitty: "yes"
enable_horizon_cloudkitty: "{{ enable_cloudkitty | bool }}"
enable_influxdb: "{{ enable_monasca | bool or (enable_cloudkitty | bool and cloudkitty_storage_backend == 'influxdb') }}"
# cloudkitty_storage_backend: "influxdb"

(2) deploy kolla
kolla-ansible deploy -i /root/inventory/blah

**Environment**:
* OS (e.g. from /etc/os-release):
* Kernel (e.g. `uname -a`):VERSION="18.04.4 LTS (Bionic Beaver)"
* Docker version if applicable (e.g. `docker version`): 5:19.03.5~3-0~ubuntu-bionic
* Kolla-Ansible version (e.g. `git head or tag or stable branch` or pip package version if using release): kolla-ansigbe 9.0.1
* Docker image Install type (source/binary): source (in binary, cloudkitty is marked as broken!)
* Docker image distribution: train
* Are you using official images from Docker Hub or self built? Docker Hub
* If self built - Kolla version and environment used to build: -
* Share your inventory file, globals.yml and other configuration files if relevant
see above