1 # Copyright 2013: Mirantis Inc.
4 # Licensed under the Apache License, Version 2.0 (the "License"); you may
5 # not use this file except in compliance with the License. You may obtain
6 # a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 # License for the specific language governing permissions and limitations
16 # yardstick comment: this is a modified copy of rally/rally/common/utils.py
18 from __future__ import absolute_import
19 from __future__ import print_function
26 from functools import reduce
29 from keystoneauth1 import identity
30 from keystoneauth1 import session
31 from neutronclient.v2_0 import client
32 from oslo_utils import importutils
36 logger = logging.getLogger(__name__)
37 logger.setLevel(logging.DEBUG)
40 # Decorator for cli-args
41 def cliargs(*args, **kwargs):
43 func.__dict__.setdefault('arguments', []).insert(0, (args, kwargs))
48 def itersubclasses(cls, _seen=None):
49 """Generator over all subclasses of a given class in depth first order."""
51 if not isinstance(cls, type):
52 raise TypeError("itersubclasses must be called with "
53 "new-style classes, not %.100r" % cls)
54 _seen = _seen or set()
56 subs = cls.__subclasses__()
57 except TypeError: # fails only when cls is type
58 subs = cls.__subclasses__(cls)
63 for sub in itersubclasses(sub, _seen):
67 def try_append_module(name, modules):
68 if name not in modules:
69 modules[name] = importutils.import_module(name)
72 def import_modules_from_package(package):
73 """Import modules from package and append into sys.modules
75 :param: package - Full package name. For example: rally.deploy.engines
77 path = [os.path.dirname(yardstick.__file__), ".."] + package.split(".")
78 path = os.path.join(*path)
79 for root, dirs, files in os.walk(path):
80 for filename in files:
81 if filename.startswith("__") or not filename.endswith(".py"):
83 new_package = ".".join(root.split(os.sep)).split("....")[1]
84 module_name = "%s.%s" % (new_package, filename[:-3])
85 try_append_module(module_name, sys.modules)
88 def get_para_from_yaml(file_path, args):
95 if os.path.exists(file_path):
96 with open(file_path) as f:
97 value = yaml.safe_load(f)
98 value = reduce(func, args.split('.'), value)
101 print('parameter not found')
106 print('file not exist')
114 if e.errno != errno.EEXIST:
118 def execute_command(cmd):
119 exec_msg = "Executing command: '%s'" % cmd
120 logger.debug(exec_msg)
122 output = subprocess.check_output(cmd.split()).split(os.linesep)
127 def source_env(env_file):
128 p = subprocess.Popen(". %s; env" % env_file, stdout=subprocess.PIPE,
130 output = p.communicate()[0]
131 env = dict((line.split('=', 1) for line in output.splitlines()))
132 os.environ.update(env)
136 def get_openstack_session():
137 auth = identity.Password(auth_url=os.environ.get('OS_AUTH_URL'),
138 username=os.environ.get('OS_USERNAME'),
139 password=os.environ.get('OS_PASSWORD'),
140 tenant_name=os.environ.get('OS_TENANT_NAME'))
141 return session.Session(auth=auth)
144 def get_neutron_client():
145 sess = get_openstack_session()
146 neutron_client = client.Client(session=sess)
147 return neutron_client