there is no config file after setup

[yaoyuan]

I have installed Gnocchi step by step follow the document:http://gnocchi.xyz/install.html.
bug I find that there is no config file in this path "/etc/gnocchi"

So I run the next command:
 oslo-config-generator --config-file=/etc/gnocchi/gnocchi-config-generator.conf --output-file=/etc/gnocchi/gnocchi.conf

,but failed again.
the Output is:
tecs@tecs-OpenStack-Nova:~/devstack$ sudo oslo-config-generator --config-file=/etc/gnocchi/gnocchi-config-generator.conf --output-file=/etc/gnocchi/gnocchi.conf
Traceback (most recent call last):
  File "/usr/local/bin/oslo-config-generator", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python2.7/dist-packages/oslo_config/generator.py", line 418, in main
    conf(args, version=version)
  File "/usr/local/lib/python2.7/dist-packages/oslo_config/cfg.py", line 2164, in __call__
    raise ConfigFilesNotFoundError(self._namespace._files_not_found)
oslo_config.cfg.ConfigFilesNotFoundError: Failed to find some config files: /etc/gnocchi/gnocchi-config-generator.conf

[yaoyuan (yaoyuan)]

It seems that "pip install gnocchi" have not install "gnocchi-config-generator.conf"

tecs@tecs-OpenStack-Nova:/home/yaoyuan/01_Svn$ pip show --file gnocchi
---
Metadata-Version: 2.0
Name: gnocchi
Version: 2.1.0
Summary: Metric as a Service
Home-page: UNKNOWN
Author: OpenStack
Author-email: <email address hidden>
Installer: pip
License: UNKNOWN
Location: /usr/local/lib/python2.7/dist-packages
Requires: pecan, oslo.utils, voluptuous, oslo.serialization, werkzeug, futures, oslo.config, trollius, PasteDeploy, retrying, stevedore, WebOb, prettytable, Paste, oslo.middleware, oslo.policy, requests, pbr, numpy, oslo.log, pandas, pytimeparse, six
Classifiers:
  Environment :: OpenStack
  Intended Audience :: Information Technology
  Intended Audience :: System Administrators
  License :: OSI Approved :: Apache Software License
  Operating System :: POSIX :: Linux
  Programming Language :: Python
  Programming Language :: Python :: 2
  Programming Language :: Python :: 2.7
  Programming Language :: Python :: 3.4
  Topic :: System :: Monitoring
Files:
  ../../../bin/carbonara-dump
  ../../../bin/gnocchi-api
  ../../../bin/gnocchi-metricd
  ../../../bin/gnocchi-statsd
  ../../../bin/gnocchi-upgrade
  ../../../etc/gnocchi/api-paste.ini
  ../../../etc/gnocchi/policy.json
  gnocchi-2.1.0.dist-info/DESCRIPTION.rst
  gnocchi-2.1.0.dist-info/INSTALLER
  gnocchi-2.1.0.dist-info/METADATA
  gnocchi-2.1.0.dist-info/RECORD
  gnocchi-2.1.0.dist-info/WHEEL
  gnocchi-2.1.0.dist-info/entry_points.txt
  gnocchi-2.1.0.dist-info/metadata.json
  gnocchi-2.1.0.dist-info/pbr.json
  gnocchi-2.1.0.dist-info/top_level.txt
  gnocchi/__init__.py
  gnocchi/__init__.pyc
  gnocchi/aggregates/__init__.py
  gnocchi/aggregates/__init__.pyc
  gnocchi/aggregates/moving_stats.py
  gnocchi/aggregates/moving_stats.pyc
  gnocchi/archive_policy.py
  gnocchi/archive_policy.pyc
  gnocchi/carbonara.py
  gnocchi/carbonara.pyc
  gnocchi/cli.py
  gnocchi/cli.pyc
  gnocchi/exceptions.py
  gnocchi/exceptions.pyc
  gnocchi/genconfig.py
  gnocchi/genconfig.pyc
  gnocchi/gendoc.py
  gnocchi/gendoc.pyc
  gnocchi/indexer/__init__.py
  gnocchi/indexer/__init__.pyc
  gnocchi/indexer/alembic/alembic.ini
  gnocchi/indexer/alembic/env.py
  gnocchi/indexer/alembic/env.pyc
  gnocchi/indexer/alembic/script.py.mako
  gnocchi/indexer/alembic/versions/0735ed97e5b3_add_tablename_to_resource_type.py
  gnocchi/indexer/alembic/versions/0735ed97e5b3_add_tablename_to_resource_type.pyc
  gnocchi/indexer/alembic/versions/1c2c61ac1f4c_add_original_resource_id_column.py
  gnocchi/indexer/alembic/versions/1c2c61ac1f4c_add_original_resource_id_column.pyc
  gnocchi/indexer/alembic/versions/1c98ac614015_initial_base.py
  gnocchi/indexer/alembic/versions/1c98ac614015_initial_base.pyc
  gnocchi/indexer/alembic/versions/1f21cbdd6bc2_allow_volume_display_name_to_be_null.py
  gnocchi/indexer/alembic/versions/1f21cbdd6bc2_allow_volume_display_name_to_be_null.pyc
  gnocchi/indexer/alembic/versions/3901f5ea2b8e_create_instance_disk_and_instance_.py
  gnocchi/indexer/alembic/versions/3901f5ea2b8e_create_instance_disk_and_instance_.pyc
  gnocchi/indexer/alembic/versions/3...