Comment 3 for bug 1510989

Error msg from docker-nailgun.log on Fuel node.
2015-10-30 02:46:36,281 DEBG 'oswl_tenant_collectord' stdout output:^M
2015-10-30 02:46:36.280 INFO [7f21a46a9700] (utils) Deleting set http_proxy environment variable^M
^M
2015-10-30 02:46:44,052 DEBG 'oswl_flavor_collectord' stdout output:^M
2015-10-30 02:46:44.051 INFO [7f839268d700] (utils) Deleting set http_proxy environment variable^M
^M
2015-10-30 02:47:12,812 DEBG 'oswl_image_collectord' stdout output:^M
2015-10-30 02:47:12.810 INFO [7f5fb0176700] (utils) Deleting set http_proxy environment variable^M
^M
2015-10-30 02:47:21,958 DEBG 'oswl_volume_collectord' stdout output:^M
2015-10-30 02:47:21.958 INFO [7f8b62a8d700] (utils) Deleting set http_proxy environment variable^M
^M
2015-10-30 02:47:58,715 DEBG 'oswl_vm_collectord' stdout output:^M
2015-10-30 02:47:58.711 ERROR [7f1390385700] (utils) Error while talking to proxy. Details: string indices must be integers^M
Traceback (most recent call last):^M
  File "/usr/lib/python2.6/site-packages/nailgun/statistics/utils.py", line 127, in set_proxy^M
    yield^M
  File "/usr/lib/python2.6/site-packages/nailgun/statistics/oswl/collector.py", line 65, in collect^M
    client_provider, resource_type)^M
  File "/usr/lib/python2.6/site-packages/nailgun/statistics/oswl/helpers.py", line 180, in get_info_from_os_resource_manager^M
    additional_display_options^M
  File "/usr/lib/python2.6/site-packages/nailgun/statistics/oswl/helpers.py", line 202, in _get_data_from_resource_manager^M
    rule.path, rule.transform_func, obj_dict^M
  File "/usr/lib/python2.6/site-packages/nailgun/statistics/utils.py", line 84, in get_attr_value^M
    attrs = attrs[p]^M
TypeError: string indices must be integers^M
^M
2015-10-30 02:47:58,718 DEBG 'oswl_vm_collectord' stdout output:^M
2015-10-30 02:47:58.714 INFO [7f1390385700] (utils) Deleting set http_proxy environment variable^M