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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
"""vPingSSH testcase."""
import logging
import os
import tempfile
import time
import paramiko
import pkg_resources
from scp import SCPClient
from xtesting.core import testcase
from xtesting.energy import energy
from functest.opnfv_tests.openstack.vping import vping_base
from functest.utils import config
class VPingSSH(vping_base.VPingBase):
"""
VPingSSH testcase implementation.
Class to execute the vPing test using a Floating IP to connect to one VM
to issue the ping command to the second
"""
def __init__(self, **kwargs):
"""Initialize testcase."""
if "case_name" not in kwargs:
kwargs["case_name"] = "vping_ssh"
super(VPingSSH, self).__init__(**kwargs)
self.logger = logging.getLogger(__name__)
self.vm2 = None
self.sec = None
self.fip = None
self.keypair = None
self.ssh = paramiko.SSHClient()
(_, self.key_filename) = tempfile.mkstemp()
@energy.enable_recording
def run(self, **kwargs):
"""
Excecute VPingSSH testcase.
Sets up the OpenStack keypair, router, security group, and VM instance
objects then validates the ping.
:return: the exit code from the super.execute() method
"""
try:
assert self.cloud
super(VPingSSH, self).run()
kp_name = getattr(config.CONF, 'vping_keypair_name') + self.guid
self.logger.info("Creating keypair with name: '%s'", kp_name)
self.keypair = self.cloud.create_keypair(kp_name)
self.logger.debug("keypair: %s", self.keypair)
self.logger.debug("private_key: %s", self.keypair.private_key)
with open(self.key_filename, 'w') as private_key_file:
private_key_file.write(self.keypair.private_key)
self.sec = self.cloud.create_security_group(
getattr(config.CONF, 'vping_sg_name') + self.guid,
getattr(config.CONF, 'vping_sg_desc'))
self.cloud.create_security_group_rule(
self.sec.id, port_range_min='22', port_range_max='22',
protocol='tcp', direction='ingress')
self.cloud.create_security_group_rule(
self.sec.id, protocol='icmp', direction='ingress')
vm2_name = "{}-{}-{}".format(
getattr(config.CONF, 'vping_vm_name_2'), "ssh", 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,
key_name=self.keypair.id,
auto_ip=False, wait=True,
timeout=getattr(config.CONF, 'vping_vm_boot_timeout'),
network=self.network.id,
security_groups=[self.sec.id])
self.logger.debug("vm2: %s", self.vm2)
self.fip = self.cloud.create_floating_ip(
network=self.ext_net.id, server=self.vm2)
self.logger.debug("floating_ip2: %s", self.fip)
self.vm2 = self.cloud.wait_for_server(self.vm2, auto_ip=False)
return self._execute()
except Exception: # pylint: disable=broad-except
self.logger.exception('Unexpected error running vping_ssh')
return testcase.TestCase.EX_RUN_ERROR
def _do_vping(self):
"""
Execute ping command.
Override from super
"""
time.sleep(10)
self.ssh.set_missing_host_key_policy(paramiko.client.AutoAddPolicy())
self.ssh.connect(
self.vm2.public_v4,
username=getattr(config.CONF, 'openstack_image_user'),
key_filename=self.key_filename,
timeout=getattr(config.CONF, 'vping_vm_ssh_connect_timeout'))
self.logger.debug("ssh: %s", self.ssh)
if not self._transfer_ping_script():
return testcase.TestCase.EX_RUN_ERROR
return self._do_vping_ssh()
def _transfer_ping_script(self):
"""
Transfert vping script to VM.
Uses SCP to copy the ping script via the SSH client
:param ssh: the SSH client
:return:
"""
self.logger.info("Trying to transfer ping.sh")
scp = SCPClient(self.ssh.get_transport())
ping_script = pkg_resources.resource_filename(
'functest.opnfv_tests.openstack.vping', 'ping.sh')
try:
scp.put(ping_script, "~/")
except Exception: # pylint: disable=broad-except
self.logger.error("Cannot SCP the file '%s'", ping_script)
return False
cmd = 'chmod 755 ~/ping.sh'
(_, stdout, _) = self.ssh.exec_command(cmd)
for line in stdout.readlines():
print line
return True
def _do_vping_ssh(self):
"""
Execute ping command via SSH.
Pings the test_ip via the SSH client
:param ssh: the SSH client used to issue the ping command
:param test_ip: the IP for the ping command to use
:return: exit_code (int)
"""
exit_code = testcase.TestCase.EX_TESTCASE_FAILED
self.logger.info("Waiting for ping...")
sec = 0
cmd = '~/ping.sh ' + self.vm1.private_v4
flag = False
while True:
time.sleep(1)
(_, stdout, _) = self.ssh.exec_command(cmd)
output = stdout.readlines()
for line in output:
if "vPing OK" in line:
self.logger.info("vPing detected!")
exit_code = testcase.TestCase.EX_OK
flag = True
break
elif sec == getattr(config.CONF, 'vping_ping_timeout'):
self.logger.info("Timeout reached.")
flag = True
break
if flag:
break
log = "Pinging %s. Waiting for response..." % self.vm1.private_v4
self.logger.debug(log)
sec += 1
return exit_code
def clean(self):
assert self.cloud
os.remove(self.key_filename)
self.cloud.delete_server(
self.vm2, wait=True,
timeout=getattr(config.CONF, 'vping_vm_delete_timeout'))
self.cloud.delete_security_group(self.sec.id)
self.cloud.delete_keypair(self.keypair.id)
self.cloud.delete_floating_ip(self.fip.id)
super(VPingSSH, self).clean()
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