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# Copyright (c) 2016-2017 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""This module handle non managed standalone virtualization node."""
from __future__ import absolute_import
import logging
import errno
import collections
import yaml
from yardstick.benchmark.contexts.base import Context
from yardstick.common.constants import YARDSTICK_ROOT_PATH
LOG = logging.getLogger(__name__)
class StandaloneContext(Context):
""" This class handles standalone nodes - VM running on Non-Managed NFVi
Configuration: vswitch, ovs, ovs-dpdk, sr-iov, linuxbridge
"""
__context_type__ = "Standalone"
def __init__(self):
self.name = None
self.file_path = None
self.nodes = []
self.nfvi_node = []
super(StandaloneContext, self).__init__()
def read_config_file(self):
"""Read from config file"""
with open(self.file_path) as stream:
LOG.info("Parsing pod file: %s", self.file_path)
cfg = yaml.load(stream)
return cfg
def init(self, attrs):
"""initializes itself from the supplied arguments"""
self.name = attrs["name"]
self.file_path = attrs.get("file", "pod.yaml")
LOG.info("Parsing pod file: %s", self.file_path)
try:
cfg = self.read_config_file()
except IOError as ioerror:
if ioerror.errno == errno.ENOENT:
self.file_path = YARDSTICK_ROOT_PATH + self.file_path
cfg = self.read_config_file()
else:
raise
self.nodes.extend(cfg["nodes"])
self.nfvi_node.extend([node for node in cfg["nodes"]
if node["role"] == "nfvi_node"])
LOG.debug("Nodes: %r", self.nodes)
LOG.debug("NFVi Node: %r", self.nfvi_node)
def deploy(self):
"""don't need to deploy"""
# Todo: NFVi deploy (sriov, vswitch, ovs etc) based on the config.
pass
def undeploy(self):
"""don't need to undeploy"""
# Todo: NFVi undeploy (sriov, vswitch, ovs etc) based on the config.
super(StandaloneContext, self).undeploy()
def _get_server(self, attr_name):
"""lookup server info by name from context
Keyword arguments:
attr_name -- A name for a server listed in nodes config file
"""
if isinstance(attr_name, collections.Mapping):
return None
if self.name.split("-")[0] != attr_name.split(".")[1]:
return None
node_name = attr_name.split(".")[0]
matching_nodes = (n for n in self.nodes if n["name"] == node_name)
try:
# A clone is created in order to avoid affecting the
# original one.
node = dict(next(matching_nodes))
except StopIteration:
return None
try:
duplicate = next(matching_nodes)
except StopIteration:
pass
else:
raise ValueError("Duplicate nodes!!! Nodes: %s %s",
(matching_nodes, duplicate))
node["name"] = attr_name
return node
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