functest/opnfv_tests/openstack/vping/vping_userdata.py

   1 #!/usr/bin/env python
   2
   3 # Copyright (c) 2015 All rights reserved
   4 # This program and the accompanying materials
   5 # are made available under the terms of the Apache License, Version 2.0
   6 # which accompanies this distribution, and is available at
   7 #
   8 # http://www.apache.org/licenses/LICENSE-2.0
   9
  10 """vping_userdata testcase."""
  11
  12 import logging
  13 import time
  14
  15 from snaps.config.network import PortConfig
  16 from snaps.config.vm_inst import VmInstanceConfig
  17 from snaps.openstack.utils import deploy_utils
  18 from xtesting.core import testcase
  19
  20 from functest.opnfv_tests.openstack.vping import vping_base
  21
  22
  23 class VPingUserdata(vping_base.VPingBase):
  24     """
  25     Class to execute the vPing test using userdata and the VM's console
  26     """
  27
  28     def __init__(self, **kwargs):
  29         if "case_name" not in kwargs:
  30             kwargs["case_name"] = "vping_userdata"
  31         super(VPingUserdata, self).__init__(**kwargs)
  32         self.logger = logging.getLogger(__name__)
  33
  34     def run(self, **kwargs):
  35         """
  36         Sets up the OpenStack VM instance objects then executes the ping and
  37         validates.
  38         :return: the exit code from the super.execute() method
  39         """
  40         super(VPingUserdata, self).run()
  41
  42         # Creating Instance 1
  43         port1_settings = PortConfig(
  44             name=self.vm1_name + '-vPingPort',
  45             network_name=self.network_creator.network_settings.name)
  46         instance1_settings = VmInstanceConfig(
  47             name=self.vm1_name,
  48             flavor=self.flavor_name,
  49             vm_boot_timeout=self.vm_boot_timeout,
  50             port_settings=[port1_settings])
  51
  52         self.logger.info(
  53             "Creating VM 1 instance with name: '%s'",
  54             instance1_settings.name)
  55         self.vm1_creator = deploy_utils.create_vm_instance(
  56             self.os_creds, instance1_settings,
  57             self.image_creator.image_settings)
  58         self.creators.append(self.vm1_creator)
  59
  60         userdata = _get_userdata(
  61             self.vm1_creator.get_port_ip(port1_settings.name))
  62         if userdata:
  63             # Creating Instance 2
  64             port2_settings = PortConfig(
  65                 name=self.vm2_name + '-vPingPort',
  66                 network_name=self.network_creator.network_settings.name)
  67             instance2_settings = VmInstanceConfig(
  68                 name=self.vm2_name,
  69                 flavor=self.flavor_name,
  70                 vm_boot_timeout=self.vm_boot_timeout,
  71                 port_settings=[port2_settings],
  72                 userdata=userdata)
  73
  74             self.logger.info(
  75                 "Creating VM 2 instance with name: '%s'",
  76                 instance2_settings.name)
  77             self.vm2_creator = deploy_utils.create_vm_instance(
  78                 self.os_creds, instance2_settings,
  79                 self.image_creator.image_settings)
  80             self.creators.append(self.vm2_creator)
  81         else:
  82             raise Exception('Userdata is None')
  83
  84         return self._execute()
  85
  86     def _do_vping(self, vm_creator, test_ip):
  87         """
  88         Override from super
  89         """
  90         self.logger.info("Waiting for ping...")
  91         exit_code = testcase.TestCase.EX_TESTCASE_FAILED
  92         sec = 0
  93         tries = 0
  94
  95         while True:
  96             time.sleep(1)
  97             p_console = vm_creator.get_console_output()
  98             if "vPing OK" in p_console:
  99                 self.logger.info("vPing detected!")
 100                 exit_code = testcase.TestCase.EX_OK
 101                 break
 102             elif "failed to read iid from metadata" in p_console or tries > 5:
 103                 self.logger.info("Failed to read iid from metadata")
 104                 break
 105             elif sec == self.ping_timeout:
 106                 self.logger.info("Timeout reached.")
 107                 break
 108             elif sec % 10 == 0:
 109                 if "request failed" in p_console:
 110                     self.logger.debug(
 111                         "It seems userdata is not supported in nova boot. " +
 112                         "Waiting a bit...")
 113                     tries += 1
 114                 else:
 115                     self.logger.debug(
 116                         "Pinging %s. Waiting for response...", test_ip)
 117             sec += 1
 118
 119         return exit_code
 120
 121
 122 def _get_userdata(test_ip):
 123     """
 124     Returns the post VM creation script to be added into the VM's userdata
 125     :param test_ip: the IP value to substitute into the script
 126     :return: the bash script contents
 127     """
 128     if test_ip:
 129         return ("#!/bin/sh\n\n"
 130                 "while true; do\n"
 131                 " ping -c 1 %s 2>&1 >/dev/null\n"
 132                 " RES=$?\n"
 133                 " if [ \"Z$RES\" = \"Z0\" ] ; then\n"
 134                 "  echo 'vPing OK'\n"
 135                 "  break\n"
 136                 " else\n"
 137                 "  echo 'vPing KO'\n"
 138                 " fi\n"
 139                 " sleep 1\n"
 140                 "done\n" % str(test_ip))
 141     return None