ds-identify does not identify openstack Open Telecom Cloud BMS

This bug was originally filed in Launchpad as [LP: #1828236](https://bugs.launchpad.net/cloud-init/+bug/1828236)

Launchpad details

affected_projects = []

assignee = None

assignee_name = None

date_closed = None

date_created = 2019-05-08T13:50:56.955867+00:00

date_fix_committed = None

date_fix_released = None

id = 1828236

importance = medium

is_complete = False

lp_url = https://bugs.launchpad.net/cloud-init/+bug/1828236

milestone = None

owner = sabrina-mueller

owner_name = Sabrina

private = False

status = triaged

submitter = sabrina-mueller

submitter_name = Sabrina

tags = ['dsid']

duplicates = []

_Launchpad user **Sabrina(sabrina-mueller)** wrote on 2019-05-08T13:50:56.955867+00:00_

relating to cloud-init bugs #1669675 #1756471

The OpenStack detection fails on BMS (Bare Metal) hosts in Open Telekom Cloud.

cloud-init version 18.5 detection fails
cloud-init Version 18.2 still works

/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceOpenStack.py searches for
(...) 
# OpenStack DMI constants
DMI_PRODUCT_NOVA = 'OpenStack Nova'
DMI_PRODUCT_COMPUTE = 'OpenStack Compute'
VALID_DMI_PRODUCT_NAMES = [DMI_PRODUCT_NOVA, DMI_PRODUCT_COMPUTE]
DMI_ASSET_TAG_OPENTELEKOM = 'OpenTelekomCloud'
VALID_DMI_ASSET_TAGS = [DMI_ASSET_TAG_OPENTELEKOM]
(...)
 
BMS server in OTC have none of theses tags set.
Manual edit DataSourceOpenStack.py only for testing to accept our host, all is working fine.

How we can get back OTC BMS hosts detected as valid OpenStack hosts in cloud-init?