users context fails when trying to connect to Neutron through public endpoint type even when internal was set

[Carlos L. Torres]

Using the following deployment configuration with Rally 0.7.0

  {
    "type": "ExistingCloud",
    "auth_url": "http://172.29.236.40:5000/v3",
    "region_name": "RegionOne",
    "endpoint_type": "internal",
    "https_insecure": true,
    "https_cacert": "",
    "admin": {
      "username": "admin",
      "password": "pass",
      "project_name": "admin",
      "project_domain_name": "Default",
      "user_domain_name": "Default"
     }
}

Regardless of the task, it fails with the following error message:

  Task config is invalid: `Unable to establish connection to
  http://10.17.137.64:9696/v2.0/extensions.json:
  ('Connection aborted.', BadStatusLine("''",))`

The endpoint URL used here is for the public endpoint url for Neutron.
This is not expected since endpoint_type: "internal" was specified in the configuration.

[Carlos L. Torres (carlos-torres)]

I narrowed it down.

It seems that Rally does indeed get the right endpoint_url from Keystone catalog.

I instrumented the code and log the endpoint_url being passed to the Neutron client:

  Correct --> 2017-01-11 00:38:23.513 8727 WARNING rally.osclients [-] http://172.29.236.40:9696

  2017-01-11 00:38:23.519 8727 DEBUG requests.packages.urllib3.connectionpool
    [-] Starting new HTTP connection (1): 10.17.137.64 _new_conn
     /opt/rally/venv/local/lib/python2.7/site/packages/requests/packages/urllib3/connectionpool.py:212
    Task config is invalid: `Unable to establish connection to

  Incorrect- -> http://10.17.137.64:9696/v2.0/extensions.json: ('Connection aborted.',
                                                                 BadStatusLine("''",))`

Based on this Neutron client seems to be grabbing the endpoint_url and assuming it's a public endpoint.

[Carlos L. Torres (carlos-torres)]

The following patch which explicitly passes the endpoint type to Neutron client works correctly

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/419084
Committed: https://git.openstack.org/cgit/openstack/rally/commit/?id=ba97c9b172fb8f6fe5493165627e08324dc306c3
Submitter: Jenkins
Branch: master

commit ba97c9b172fb8f6fe5493165627e08324dc306c3
Author: Carlos L. Torres <email address hidden>
Date: Wed Jan 11 12:52:17 2017 -0600

    Explicitly pass endpoint type to Neutron client

    Adds unit test to exercise branch.

    Change-Id: I2c5fb7c58031916497e8eedd9eef5d8866e52393
    Closes-Bug: 1655728