Bug 1487619

Description of problem:
All created metrics are under the ceilometer user and services project and listing them with a user expecting to get a list of own metrics will always return an empty array [] unless ran under an admin account.   This is due to the way metrics are created and how they are fetched in /usr/lib/python2.7/site-packages/gnocchi/rest/__init__.py since the user metrics are filtered with created_by_user_id and created_by_project_id which will never be the user own project/user id.   I also think that due to this, a given user would not receive all the metrics created within a project due to the use of the following condition:

        if user_id is not None:
            attr_filter['created_by_user_id'] = user_id

in the following code block:

def get_all(**kwargs):
        try:
            enforce("list all metric", {})
        except webob.exc.HTTPForbidden:
            enforce("list metric", {})
            user_id, project_id = get_user_and_project()
            provided_user_id = kwargs.get('user_id')
            provided_project_id = kwargs.get('project_id')
            if ((provided_user_id and user_id != provided_user_id)
               or (provided_project_id and project_id != provided_project_id)):
                abort(
                    403, "Insufficient privileges to filter by user/project")
        else:
            user_id = kwargs.get('user_id')
            project_id = kwargs.get('project_id')
        attr_filter = {}
        if user_id is not None:
            attr_filter['created_by_user_id'] = user_id
        if project_id is not None:
            attr_filter['created_by_project_id'] = project_id
        attr_filter.update(get_pagination_options(
            kwargs, METRIC_DEFAULT_PAGINATION))
        try:
            return pecan.request.indexer.list_metrics(**attr_filter)
        except indexer.IndexerException as e:
            abort(400, e)
Version-Release number of selected component (if applicable):


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