# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
+from __future__ import absolute_import
+from __future__ import print_function
+
+import collections
+import logging
import os
import sys
-import pkg_resources
+import uuid
+
import paramiko
+import pkg_resources
from yardstick.benchmark.contexts.base import Context
-from yardstick.benchmark.contexts.model import Server
-from yardstick.benchmark.contexts.model import PlacementGroup
from yardstick.benchmark.contexts.model import Network
+from yardstick.benchmark.contexts.model import PlacementGroup
+from yardstick.benchmark.contexts.model import Server
from yardstick.benchmark.contexts.model import update_scheduler_hints
-from yardstick.orchestrator.heat import HeatTemplate
+from yardstick.orchestrator.heat import HeatTemplate, get_short_key_uuid
+from yardstick.definitions import YARDSTICK_ROOT_PATH
+
+LOG = logging.getLogger(__name__)
class HeatContext(Context):
- '''Class that represents a context in the logical model'''
+ """Class that represents a context in the logical model"""
__context_type__ = "Heat"
self._user = None
self.template_file = None
self.heat_parameters = None
- self.key_filename = 'yardstick/resources/files/yardstick_key'
- super(self.__class__, self).__init__()
+ # generate an uuid to identify yardstick_key
+ # the first 8 digits of the uuid will be used
+ self.key_uuid = uuid.uuid4()
+ self.key_filename = ''.join(
+ [YARDSTICK_ROOT_PATH, 'yardstick/resources/files/yardstick_key-',
+ get_short_key_uuid(self.key_uuid)])
+ super(HeatContext, self).__init__()
def init(self, attrs):
- '''initializes itself from the supplied arguments'''
+ """initializes itself from the supplied arguments"""
self.name = attrs["name"]
if "user" in attrs:
self.servers.append(server)
self._server_map[server.dn] = server
- print "Generating RSA host key ..."
rsa_key = paramiko.RSAKey.generate(bits=2048, progress_func=None)
- print "Writing yardstick_key ..."
rsa_key.write_private_key_file(self.key_filename)
- print "Writing yardstick_key.pub ..."
- open(self.key_filename + ".pub", "w").write("%s %s\n" %
- (rsa_key.get_name(),
- rsa_key.get_base64()))
+ print("Writing %s ..." % self.key_filename)
+ with open(self.key_filename + ".pub", "w") as pubkey_file:
+ pubkey_file.write(
+ "%s %s\n" % (rsa_key.get_name(), rsa_key.get_base64()))
del rsa_key
- print "... done!"
@property
def image(self):
- '''returns application's default image name'''
+ """returns application's default image name"""
return self._image
@property
def flavor(self):
- '''returns application's default flavor name'''
+ """returns application's default flavor name"""
return self._flavor
@property
def user(self):
- '''return login user name corresponding to image'''
+ """return login user name corresponding to image"""
return self._user
def _add_resources_to_template(self, template):
- '''add to the template the resources represented by this context'''
- template.add_keypair(self.keypair_name)
+ """add to the template the resources represented by this context"""
+ template.add_keypair(self.keypair_name, self.key_uuid)
template.add_security_group(self.secgroup_name)
for network in self.networks:
server.add_to_template(template, self.networks, {})
def deploy(self):
- '''deploys template into a stack using cloud'''
- print "Deploying context '%s'" % self.name
+ """deploys template into a stack using cloud"""
+ print("Deploying context '%s'" % self.name)
heat_template = HeatTemplate(self.name, self.template_file,
self.heat_parameters)
for server in self.servers:
if len(server.ports) > 0:
# TODO(hafe) can only handle one internal network for now
- port = server.ports.values()[0]
+ port = list(server.ports.values())[0]
server.private_ip = self.stack.outputs[port["stack_name"]]
if server.floating_ip:
server.public_ip = \
self.stack.outputs[server.floating_ip["stack_name"]]
- print "Context '%s' deployed" % self.name
+ print("Context '%s' deployed" % self.name)
def undeploy(self):
- '''undeploys stack from cloud'''
+ """undeploys stack from cloud"""
if self.stack:
- print "Undeploying context '%s'" % self.name
+ print("Undeploying context '%s'" % self.name)
self.stack.delete()
self.stack = None
- print "Context '%s' undeployed" % self.name
+ print("Context '%s' undeployed" % self.name)
if os.path.exists(self.key_filename):
try:
os.remove(self.key_filename)
os.remove(self.key_filename + ".pub")
- except OSError, e:
- print ("Error: %s - %s." % (e.key_filename, e.strerror))
+ except OSError:
+ LOG.exception("Key filename %s", self.key_filename)
def _get_server(self, attr_name):
- '''lookup server info by name from context
+ """lookup server info by name from context
attr_name: either a name for a server created by yardstick or a dict
with attribute name mapping when using external heat templates
- '''
+ """
key_filename = pkg_resources.resource_filename(
- 'yardstick.resources', 'files/yardstick_key')
+ 'yardstick.resources',
+ 'files/yardstick_key-' + get_short_key_uuid(self.key_uuid))
- if type(attr_name) is dict:
+ if isinstance(attr_name, collections.Mapping):
cname = attr_name["name"].split(".")[1]
if cname != self.name:
return None