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#!/usr/bin/env python
# Copyright (c) 2018 Orange 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
"""
VMTP_ is a small python application that will automatically perform ping
connectivity, round trip time measurement (latency) and TCP/UDP throughput
measurement for the following East/West flows on any OpenStack deployment:
- VM to VM same network (private fixed IP, flow #1)
- VM to VM different network using fixed IP (same as intra-tenant L3 fixed IP,
flow #2)
- VM to VM different network using floating IP and NAT (same as floating IP
inter-tenant L3, flow #3)
.. _VMTP: http://vmtp.readthedocs.io/en/latest/
"""
import json
import logging
import os
import subprocess
import tempfile
import time
import yaml
from xtesting.core import testcase
from functest.core import singlevm
from functest.utils import env
from functest.utils import functest_utils
class Vmtp(singlevm.VmReady2):
"""Class to run Vmtp_ as an OPNFV Functest testcase
.. _Vmtp: http://vmtp.readthedocs.io/en/latest/
"""
# pylint: disable=too-many-instance-attributes
__logger = logging.getLogger(__name__)
filename = ('/home/opnfv/functest/images/'
'ubuntu-14.04-server-cloudimg-amd64-disk1.img')
flavor_ram = 2048
flavor_vcpus = 1
flavor_disk = 0
create_server_timeout = 300
ssh_retry_timeout = 240
def __init__(self, **kwargs):
if "case_name" not in kwargs:
kwargs["case_name"] = 'vmtp'
super().__init__(**kwargs)
self.config = "{}/vmtp.conf".format(self.res_dir)
(_, self.privkey_filename) = tempfile.mkstemp()
(_, self.pubkey_filename) = tempfile.mkstemp()
def check_requirements(self):
if self.count_hypervisors() < 2:
self.__logger.warning("Vmtp requires at least 2 hypervisors")
self.is_skipped = True
self.project.clean()
def create_network_resources(self):
"""Create router
It creates a router which gateway is the external network detected.
Raises: expection on error
"""
assert self.cloud
assert self.ext_net
self.router = self.cloud.create_router(
name='{}-router_{}'.format(self.case_name, self.guid),
ext_gateway_net_id=self.ext_net.id)
self.__logger.debug("router: %s", self.router)
def generate_keys(self):
"""Generate Keys
Raises: Exception on error
"""
assert self.cloud
name = "vmtp_{}".format(self.guid)
self.__logger.info("Creating keypair with name: '%s'", name)
keypair = self.cloud.create_keypair(name)
self.__logger.debug("keypair: %s", keypair)
with open(self.privkey_filename, 'w') as key_file:
key_file.write(keypair.private_key)
with open(self.pubkey_filename, 'w') as key_file:
key_file.write(keypair.public_key)
self.cloud.delete_keypair(keypair.id)
def write_config(self):
"""Write vmtp.conf
Raises: Exception on error
"""
assert self.cloud
if not os.path.exists(self.res_dir):
os.makedirs(self.res_dir)
cmd = ['vmtp', '-sc']
output = subprocess.check_output(cmd).decode("utf-8")
self.__logger.info("%s\n%s", " ".join(cmd), output)
with open(self.config, "w+") as conf:
vmtp_conf = yaml.full_load(output)
vmtp_conf["private_key_file"] = self.privkey_filename
vmtp_conf["public_key_file"] = self.pubkey_filename
vmtp_conf["image_name"] = str(self.image.name)
vmtp_conf["router_name"] = str(self.router.name)
vmtp_conf["flavor_type"] = str(self.flavor.name)
vmtp_conf["internal_network_name"] = [
"pns-internal-net_{}".format(self.guid),
"pns-internal-net2_{}".format(self.guid)]
vmtp_conf["vm_name_client"] = "TestClient_{}".format(self.guid)
vmtp_conf["vm_name_server"] = "TestServer_{}".format(self.guid)
vmtp_conf["security_group_name"] = "pns-security{}".format(
self.guid)
vmtp_conf["dns_nameservers"] = [env.get('NAMESERVER')]
vmtp_conf["generic_retry_count"] = self.create_server_timeout // 2
vmtp_conf["ssh_retry_count"] = self.ssh_retry_timeout // 2
conf.write(yaml.dump(vmtp_conf))
def run_vmtp(self):
# pylint: disable=unexpected-keyword-arg
"""Run Vmtp and generate charts
Raises: Exception on error
"""
assert self.cloud
new_env = dict(
os.environ,
OS_USERNAME=self.project.user.name,
OS_PROJECT_NAME=self.project.project.name,
OS_PROJECT_ID=self.project.project.id,
OS_PROJECT_DOMAIN_NAME=self.project.domain.name,
OS_USER_DOMAIN_NAME=self.project.domain.name,
OS_PASSWORD=self.project.password)
if not new_env["OS_AUTH_URL"].endswith(('v3', 'v3/')):
new_env["OS_AUTH_URL"] = "{}/v3".format(new_env["OS_AUTH_URL"])
try:
del new_env['OS_TENANT_NAME']
del new_env['OS_TENANT_ID']
except Exception: # pylint: disable=broad-except
pass
cmd = ['vmtp', '-d', '--json', '{}/vmtp.json'.format(self.res_dir),
'-c', self.config]
if env.get("VMTP_HYPERVISORS"):
hypervisors = functest_utils.convert_ini_to_list(
env.get("VMTP_HYPERVISORS"))
for hypervisor in hypervisors:
cmd.extend(["--hypervisor", hypervisor])
self.__logger.debug("cmd: %s", cmd)
output = subprocess.check_output(
cmd, stderr=subprocess.STDOUT, env=new_env).decode("utf-8")
self.__logger.info("%s\n%s", " ".join(cmd), output)
cmd = ['vmtp_genchart', '-c', '{}/vmtp.html'.format(self.res_dir),
'{}/vmtp.json'.format(self.res_dir)]
output = subprocess.check_output(
cmd, stderr=subprocess.STDOUT).decode("utf-8")
self.__logger.info("%s\n%s", " ".join(cmd), output)
with open('{}/vmtp.json'.format(self.res_dir), 'r') as res_file:
self.details = json.load(res_file)
def run(self, **kwargs):
self.start_time = time.time()
status = testcase.TestCase.EX_RUN_ERROR
try:
assert self.cloud
assert super().run(**kwargs) == self.EX_OK
status = testcase.TestCase.EX_RUN_ERROR
if self.orig_cloud.get_role("admin"):
role_name = "admin"
elif self.orig_cloud.get_role("Admin"):
role_name = "Admin"
else:
raise Exception("Cannot detect neither admin nor Admin")
self.orig_cloud.grant_role(
role_name, user=self.project.user.id,
project=self.project.project.id,
domain=self.project.domain.id)
self.generate_keys()
self.write_config()
self.run_vmtp()
self.result = 100
status = testcase.TestCase.EX_OK
except subprocess.CalledProcessError as cpe:
self.__logger.error(
"Exception when calling %s\n%s", cpe.cmd,
cpe.output.decode("utf-8"))
self.result = 0
except Exception: # pylint: disable=broad-except
self.__logger.exception("Cannot run vmtp")
self.result = 0
self.stop_time = time.time()
return status
def clean(self):
try:
assert self.cloud
super().clean()
os.remove(self.privkey_filename)
os.remove(self.pubkey_filename)
self.cloud.delete_network("pns-internal-net_{}".format(self.guid))
self.cloud.delete_network("pns-internal-net2_{}".format(self.guid))
except Exception: # pylint: disable=broad-except
pass
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