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#!/usr/bin/env python
# Copyright (c) 2015 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
"""vping_userdata testcase."""
import logging
import time
from xtesting.core import testcase
from functest.opnfv_tests.openstack.vping import vping_base
from functest.utils import config
class VPingUserdata(vping_base.VPingBase):
"""
Class to execute the vPing test using userdata and the VM's console
"""
def __init__(self, **kwargs):
if "case_name" not in kwargs:
kwargs["case_name"] = "vping_userdata"
super(VPingUserdata, self).__init__(**kwargs)
self.logger = logging.getLogger(__name__)
self.vm2 = None
def run(self, **kwargs):
"""
Sets up the OpenStack VM instance objects then executes the ping and
validates.
:return: the exit code from the super.execute() method
"""
try:
assert self.cloud
super(VPingUserdata, self).run()
vm2_name = "{}-{}-{}".format(
getattr(config.CONF, 'vping_vm_name_2'), "userdata", self.guid)
self.logger.info(
"Creating VM 2 instance with name: '%s'", vm2_name)
self.vm2 = self.cloud.create_server(
vm2_name, image=self.image.id, flavor=self.flavor.id,
auto_ip=False, wait=True,
timeout=getattr(config.CONF, 'vping_vm_boot_timeout'),
network=self.network.id,
userdata=self._get_userdata())
self.logger.debug("vm2: %s", self.vm2)
self.vm2 = self.cloud.wait_for_server(self.vm2, auto_ip=False)
p_console = self.cloud.get_server_console(self.vm1.id)
self.logger.debug("vm2 console: \n%s", p_console)
return self._execute()
except Exception: # pylint: disable=broad-except
self.logger.exception('Unexpected error running vping_userdata')
return testcase.TestCase.EX_RUN_ERROR
def _do_vping(self):
"""
Override from super
"""
self.logger.info("Waiting for ping...")
exit_code = testcase.TestCase.EX_TESTCASE_FAILED
sec = 0
tries = 0
while True:
time.sleep(1)
p_console = self.cloud.get_server_console(self.vm2.id)
self.logger.debug("console: \n%s", p_console)
if "vPing OK" in p_console:
self.logger.info("vPing detected!")
exit_code = testcase.TestCase.EX_OK
break
elif "failed to read iid from metadata" in p_console or tries > 5:
self.logger.info("Failed to read iid from metadata")
break
elif sec == getattr(config.CONF, 'vping_ping_timeout'):
self.logger.info("Timeout reached.")
break
elif sec % 10 == 0:
if "request failed" in p_console:
self.logger.debug(
"It seems userdata is not supported in nova boot. " +
"Waiting a bit...")
tries += 1
else:
self.logger.debug(
"Pinging %s. Waiting for response...",
self.vm1.private_v4)
sec += 1
return exit_code
def _get_userdata(self):
"""
Returns the post VM creation script to be added into the VM's userdata
:param test_ip: the IP value to substitute into the script
:return: the bash script contents
"""
if self.vm1.private_v4:
return ("#!/bin/sh\n\n"
"while true; do\n"
" ping -c 1 %s 2>&1 >/dev/null\n"
" RES=$?\n"
" if [ \"Z$RES\" = \"Z0\" ] ; then\n"
" echo 'vPing OK'\n"
" break\n"
" else\n"
" echo 'vPing KO'\n"
" fi\n"
" sleep 1\n"
"done\n" % str(self.vm1.private_v4))
return None
def clean(self):
assert self.cloud
self.cloud.delete_server(
self.vm2, wait=True,
timeout=getattr(config.CONF, 'vping_vm_delete_timeout'))
self.cloud.delete_server(self.vm2, wait=True)
super(VPingUserdata, self).clean()
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