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#!/usr/bin/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
import os
import re
import sys
import time
import argparse
import paramiko
from scp import SCPClient
import functest.utils.functest_logger as ft_logger
import functest.utils.openstack_utils as os_utils
import vping_base
import functest.core.testcase as testcase
class VPingSSH(vping_base.VPingBase):
def __init__(self, **kwargs):
if "case_name" not in kwargs:
kwargs["case_name"] = "vping_ssh"
super(VPingSSH, self).__init__(**kwargs)
self.logger = ft_logger.Logger(self.case_name).getLogger()
def do_vping(self, vm, test_ip):
floatip = self.add_float_ip(vm)
if not floatip:
return testcase.TestCase.EX_RUN_ERROR
ssh = self.establish_ssh(vm, floatip)
if not ssh:
return testcase.TestCase.EX_RUN_ERROR
if not self.transfer_ping_script(ssh, floatip):
return testcase.TestCase.EX_RUN_ERROR
return self.do_vping_ssh(ssh, test_ip)
def add_float_ip(self, vm):
self.logger.info("Creating floating IP for VM '%s'..." % self.vm2_name)
floatip_dic = os_utils.create_floating_ip(self.neutron_client)
floatip = floatip_dic['fip_addr']
if floatip is None:
self.logger.error("Cannot create floating IP.")
return None
self.logger.info("Floating IP created: '%s'" % floatip)
self.logger.info("Associating floating ip: '%s' to VM '%s' "
% (floatip, self.vm2_name))
if not os_utils.add_floating_ip(self.nova_client, vm.id, floatip):
self.logger.error("Cannot associate floating IP to VM.")
return None
return floatip
def establish_ssh(self, vm, floatip):
self.logger.info("Trying to establish SSH connection to %s..."
% floatip)
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
timeout = 50
nolease = False
got_ip = False
discover_count = 0
cidr_first_octet = self.private_subnet_cidr.split('.')[0]
while timeout > 0:
try:
ssh.connect(floatip, username=self.image_username,
password=self.image_password, timeout=2)
self.logger.debug("SSH connection established to %s."
% floatip)
break
except:
self.logger.debug("Waiting for %s..." % floatip)
time.sleep(6)
timeout -= 1
console_log = vm.get_console_output()
# print each "Sending discover" captured on the console log
if (len(re.findall("Sending discover", console_log)) >
discover_count and not got_ip):
discover_count += 1
self.logger.debug("Console-log '%s': Sending discover..."
% self.vm2_name)
# check if eth0 got an ip,the line looks like this:
# "inet addr:192.168."....
# if the dhcp agent fails to assing ip, this line will not appear
if "inet addr:" + cidr_first_octet in console_log and not got_ip:
got_ip = True
self.logger.debug("The instance '%s' succeeded to get the IP "
"from the dhcp agent." % self.vm2_name)
# if dhcp not work,it shows "No lease, failing".The test will fail
if ("No lease, failing" in console_log and
not nolease and
not got_ip):
nolease = True
self.logger.debug("Console-log '%s': No lease, failing..."
% self.vm2_name)
self.logger.info("The instance failed to get an IP from DHCP "
"agent. The test will probably timeout...")
if timeout == 0: # 300 sec timeout (5 min)
self.logger.error("Cannot establish connection to IP '%s'. "
"Aborting" % floatip)
return None
return ssh
def transfer_ping_script(self, ssh, floatip):
self.logger.info("Trying to transfer ping.sh to %s..." % floatip)
scp = SCPClient(ssh.get_transport())
local_path = self.functest_repo + "/" + self.repo
ping_script = os.path.join(local_path, "ping.sh")
try:
scp.put(ping_script, "~/")
except:
self.logger.error("Cannot SCP the file '%s' to VM '%s'"
% (ping_script, floatip))
return False
cmd = 'chmod 755 ~/ping.sh'
(stdin, stdout, stderr) = ssh.exec_command(cmd)
for line in stdout.readlines():
print line
return True
def do_vping_ssh(self, ssh, test_ip):
EXIT_CODE = -1
self.logger.info("Waiting for ping...")
sec = 0
cmd = '~/ping.sh ' + test_ip
flag = False
while True:
time.sleep(1)
(stdin, stdout, stderr) = ssh.exec_command(cmd)
output = stdout.readlines()
for line in output:
if "vPing OK" in line:
self.logger.info("vPing detected!")
EXIT_CODE = 0
flag = True
break
elif sec == self.ping_timeout:
self.logger.info("Timeout reached.")
flag = True
break
if flag:
break
self.logger.debug("Pinging %s. Waiting for response..." % test_ip)
sec += 1
return EXIT_CODE
if __name__ == '__main__':
args_parser = argparse.ArgumentParser()
args_parser.add_argument("-r", "--report",
help="Create json result file",
action="store_true")
args = vars(args_parser.parse_args())
sys.exit(vping_base.VPingMain(VPingSSH).main(**args))
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