Openstack development using SDK - auth_url does not work - openstack

Question

Getting into openstack dev using this link, and turns out my auth_url is of the form http://192.168.43.18/identity/v3 from the openstack RC yaml file. When I use it, as used in the link, I get the following error message:
Traceback (most recent call last):
File "conn_tester.py", line 22, in <module>
images = conn.list_images()
File "/usr/local/lib/python2.7/dist-packages/libcloud/compute/drivers/openstack.py", line 282, in list_images
self.connection.request('/images/detail').object, ex_only_active)
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/openstack.py", line 223, in request
raw=raw)
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/base.py", line 536, in request
action = self.morph_action_hook(action)
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/openstack.py", line 290, in morph_action_hook
self._populate_hosts_and_request_paths()
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/openstack.py", line 324, in _populate_hosts_and_request_paths
osa = osa.authenticate(**kwargs) # may throw InvalidCreds
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/openstack_identity.py", line 855, in authenticate
return self._authenticate_2_0_with_password()
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/openstack_identity.py", line 880, in _authenticate_2_0_with_password
return self._authenticate_2_0_with_body(reqbody)
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/openstack_identity.py", line 885, in _authenticate_2_0_with_body
method='POST')
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/base.py", line 637, in request
response = responseCls(**kwargs)
File "/usr/local/lib/python2.7/dist-packages/libcloud/common/base.py", line 157, in __init__
message=self.parse_error())
libcloud.common.exceptions.BaseHTTPError: {"error": {"message": "get_version_v3() got an unexpected keyword argument 'auth'", "code": 400, "title": "Bad Request"}}
I have tried changing the auth url to http://192.168.43.18:35357 and also port 5000, but I get this error:
requests.exceptions.ConnectionError: HTTPConnectionPool(host='192.168.43.18', port=35357): Max retries exceeded with url: /v2.0/tokens (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fe06f7dff90>: Failed to establish a new connection: [Errno 111] Connection refused',))
Using devstack version 16.0.0
Python code:
from libcloud.compute.types import Provider
from libcloud.compute.providers import get_driver
auth_username = 'demo'
auth_password = 'password'
#auth_url = 'http://controller:5000'
auth_url = 'http://192.168.43.18:35357'
#auth_url = 'http://192.168.43.18/identity/v3/'
project_name = 'demo'
region_name = 'RegionOne'
provider = get_driver(Provider.OPENSTACK)
conn = provider(auth_username,
auth_password,
ex_force_auth_url=auth_url,
ex_force_auth_version='2.0_password',
ex_tenant_name=project_name,
ex_force_service_region=region_name)
#print "hello"
images = conn.list_images()
for image in images:
print(image)

Answer 1

It looks like you could specify v3 instead:
from libcloud.compute.types import Provider
from libcloud.compute.providers import get_driver
auth_username = 'demo'
auth_password = 'password'
auth_url = 'http://192.168.43.18:5000'
project_name = 'demo'
region_name = 'RegionOne'
provider = get_driver(Provider.OPENSTACK)
conn = provider(auth_username,
auth_password,
ex_force_auth_url=auth_url,
ex_force_auth_version='3.x_password',
ex_tenant_name=project_name,
ex_force_service_region=region_name)
#print "hello"
images = conn.list_images()
for image in images:
print(image)
There aren't many examples using v3. A tenant would normally be associated with 2.0, so I'm not sure if the ex_tenant_name option is required.
Keystone versioning:
https://developer.openstack.org/api-ref/identity/v3/
More information on libcloud:
https://libcloud.readthedocs.io/en/latest/compute/drivers/openstack.html#connecting-to-the-openstack-installation
Also, you can see if keystone is using v2.0:
curl http://192.168.43.18:5000/v2.0
If it is, then I would assume something like this would work:
from libcloud.compute.types import Provider
from libcloud.compute.providers import get_driver
auth_username = 'demo'
auth_password = 'password'
auth_url = 'http://192.168.43.18:5000'
project_name = 'demo'
region_name = 'RegionOne'
provider = get_driver(Provider.OPENSTACK)
conn = provider(auth_username,
auth_password,
ex_force_auth_url=auth_url,
ex_force_auth_version='2.0_password',
ex_tenant_name=project_name,
ex_force_service_region=region_name)
#print "hello"
images = conn.list_images()
for image in images:
print(image)
If it still isn't working, verify that you are using the public keystone endpoint. Depending on your version, you may receive a different level of information:
openstack endpoint list --long
or
openstack endpoint list