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##############################################################################
# Copyright (c) 2015 Huawei Technologies Co.,Ltd and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
from __future__ import absolute_import
import subprocess
import os
import collections
import logging
import tempfile
import six
import pkg_resources
from yardstick import ssh
from yardstick.benchmark.contexts.base import Context
from yardstick.common.constants import ANSIBLE_DIR, YARDSTICK_ROOT_PATH
from yardstick.common.ansible_common import AnsibleCommon
from yardstick.common.exceptions import ContextUpdateCollectdForNodeError
LOG = logging.getLogger(__name__)
DEFAULT_DISPATCH = 'script'
class NodeContext(Context):
"""Class that handle nodes info"""
__context_type__ = "Node"
def __init__(self):
self.file_path = None
self.nodes = []
self.networks = {}
self.controllers = []
self.computes = []
self.baremetals = []
self.env = {}
self.attrs = {}
self.DISPATCH_TYPES = {
"ansible": self._dispatch_ansible,
"script": self._dispatch_script,
}
super(NodeContext, self).__init__()
def init(self, attrs):
"""initializes itself from the supplied arguments"""
super(NodeContext, self).init(attrs)
cfg = self.read_pod_file(attrs)
self.env = attrs.get('env', {})
self.attrs = attrs
LOG.debug("Env: %r", self.env)
# add optional static network definition
self.networks.update(cfg.get("networks", {}))
def deploy(self):
config_type = self.env.get('type', DEFAULT_DISPATCH)
self.DISPATCH_TYPES[config_type]("setup")
def undeploy(self):
config_type = self.env.get('type', DEFAULT_DISPATCH)
self.DISPATCH_TYPES[config_type]("teardown")
super(NodeContext, self).undeploy()
def _dispatch_script(self, key):
steps = self.env.get(key, [])
for step in steps:
for host, info in step.items():
self._execute_script(host, info)
def _dispatch_ansible(self, key):
try:
playbooks = self.env[key]
except KeyError:
pass
else:
self._do_ansible_job(playbooks)
def _do_ansible_job(self, playbooks):
self.ansible_exec = AnsibleCommon(nodes=self.nodes,
test_vars=self.env)
# playbooks relative to ansible dir
# playbooks can also be a list of playbooks
self.ansible_exec.gen_inventory_ini_dict()
if isinstance(playbooks, six.string_types):
playbooks = [playbooks]
playbooks = [self.fix_ansible_path(playbook) for playbook in playbooks]
tmpdir = tempfile.mkdtemp(prefix='ansible-')
self.ansible_exec.execute_ansible(playbooks, tmpdir,
verbose=self.env.get("verbose",
False))
def fix_ansible_path(self, playbook):
if not os.path.isabs(playbook):
# make relative paths absolute in ANSIBLE_DIR
playbook = os.path.join(ANSIBLE_DIR, playbook)
return playbook
def _get_physical_nodes(self):
return self.nodes
def _get_physical_node_for_server(self, server_name):
node_name, context_name = self.split_host_name(server_name)
if context_name is None or self.name != context_name:
return None
for n in (n for n in self.nodes if n["name"] == node_name):
return "{}.{}".format(n["name"], self._name)
return None
def update_collectd_options_for_node(self, options, attr_name):
node_name, _ = self.split_host_name(attr_name)
matching_nodes = (n for n in self.nodes if n["name"] == node_name)
try:
node = next(matching_nodes)
except StopIteration:
raise ContextUpdateCollectdForNodeError(attr_name=attr_name)
node["collectd"] = options
def _get_server(self, attr_name):
"""lookup server info by name from context
attr_name: a name for a server listed in nodes config file
"""
node_name, name = self.split_host_name(attr_name)
if name is None or self.name != name:
return None
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" %
(node, duplicate))
node["name"] = attr_name
node.setdefault("interfaces", {})
return node
def _get_network(self, attr_name):
if not isinstance(attr_name, collections.Mapping):
network = self.networks.get(attr_name)
else:
# Don't generalize too much Just support vld_id
vld_id = attr_name.get('vld_id', {})
# for node context networks are dicts
iter1 = (n for n in self.networks.values() if n.get('vld_id') == vld_id)
network = next(iter1, None)
if network is None:
return None
result = {
# name is required
"name": network["name"],
"vld_id": network.get("vld_id"),
"segmentation_id": network.get("segmentation_id"),
"network_type": network.get("network_type"),
"physical_network": network.get("physical_network"),
}
return result
def _execute_script(self, node_name, info):
if node_name == 'local':
self._execute_local_script(info)
else:
self._execute_remote_script(node_name, info)
def _execute_remote_script(self, node_name, info):
prefix = self.env.get('prefix', '')
script, options = self._get_script(info)
script_file = pkg_resources.resource_filename(prefix, script)
self._get_client(node_name)
self.client._put_file_shell(script_file, '~/{}'.format(script))
cmd = 'sudo bash {} {}'.format(script, options)
status, _, stderr = self.client.execute(cmd)
if status:
raise RuntimeError(stderr)
def _execute_local_script(self, info):
script, options = self._get_script(info)
script = os.path.join(YARDSTICK_ROOT_PATH, script)
cmd = ['bash', script, options]
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
LOG.debug('\n%s', p.communicate()[0])
def _get_script(self, info):
return info.get('script'), info.get('options', '')
def _get_client(self, node_name):
node = self._get_node_info(node_name.strip())
if node is None:
raise SystemExit('No such node')
self.client = ssh.SSH.from_node(node, defaults={'user': 'ubuntu'})
self.client.wait(timeout=600)
def _get_node_info(self, name):
return next((n for n in self.nodes if n['name'].strip() == name))
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