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from __future__ import absolute_import
import logging
import subprocess
import pkg_resources
from six.moves import range
import yardstick.ssh as ssh
from yardstick.benchmark.scenarios import base
from yardstick.benchmark.scenarios.networking import sfc_openstack
LOG = logging.getLogger(__name__)
class Sfc(base.Scenario): # pragma: no cover
''' SFC scenario class '''
__scenario_type__ = "sfc"
PRE_SETUP_SCRIPT = 'sfc_pre_setup.bash'
TACKER_SCRIPT = 'sfc_tacker.bash'
SERVER_SCRIPT = 'sfc_server.bash'
TEARDOWN_SCRIPT = "sfc_teardown.bash"
TACKER_CHANGECLASSI = "sfc_change_classi.bash"
def __init__(self, scenario_cfg, context_cfg): # pragma: no cover
self.scenario_cfg = scenario_cfg
self.context_cfg = context_cfg
self.setup_done = False
self.teardown_done = False
def setup(self):
'''scenario setup'''
self.tacker_script = pkg_resources.resource_filename(
'yardstick.benchmark.scenarios.networking',
Sfc.TACKER_SCRIPT)
self.server_script = pkg_resources.resource_filename(
'yardstick.benchmark.scenarios.networking',
Sfc.SERVER_SCRIPT)
''' calling Tacker to instantiate VNFs and Service Chains '''
cmd_tacker = "%s" % (self.tacker_script)
subprocess.call(cmd_tacker, shell=True)
target = self.context_cfg['target']
target_user = target.get('user', 'root')
target_ssh_port = target.get('ssh_port', ssh.DEFAULT_PORT)
target_pwd = target.get('password', 'opnfv')
target_ip = target.get('ip', None)
''' webserver start automatically during the vm boot '''
LOG.info("user:%s, target:%s", target_user, target_ip)
self.server = ssh.SSH(target_user, target_ip, password=target_pwd,
port=target_ssh_port)
self.server.wait(timeout=600)
self.server._put_file_shell(self.server_script, '~/server.sh')
cmd_server = "sudo bash server.sh"
LOG.debug("Executing command: %s", cmd_server)
status, stdout, stderr = self.server.execute(cmd_server)
LOG.debug("Output server command: %s", status)
ips = sfc_openstack.get_an_IP()
target = self.context_cfg['target']
SF1_user = target.get('user', 'root')
SF1_ssh_port = target.get('ssh_port', ssh.DEFAULT_PORT)
SF1_pwd = target.get('password', 'opnfv')
SF1_ip = ips[0]
LOG.info("user:%s, host:%s", SF1_user, SF1_ip)
self.server = ssh.SSH(SF1_user, SF1_ip, password=SF1_pwd,
port=SF1_ssh_port)
self.server.wait(timeout=600)
cmd_SF1 = ("nohup python vxlan_tool.py -i eth0 "
"-d forward -v off -b 80 &")
LOG.debug("Starting HTTP firewall in SF1")
status, stdout, stderr = self.server.execute(cmd_SF1)
result = self.server.execute("ps lax | grep python")
if "vxlan_tool.py" in result[1]: # pragma: no cover
LOG.debug("HTTP firewall started")
SF2_user = target.get('user', 'root')
SF2_ssh_port = target.get('ssh_port', ssh.DEFAULT_PORT)
SF2_pwd = target.get('password', 'opnfv')
SF2_ip = ips[1]
LOG.info("user:%s, host:%s", SF2_user, SF2_ip)
self.server = ssh.SSH(SF2_user, SF2_ip, password=SF2_pwd,
port=SF2_ssh_port)
self.server.wait(timeout=600)
cmd_SF2 = ("nohup python vxlan_tool.py -i eth0 "
"-d forward -v off -b 22 &")
LOG.debug("Starting SSH firewall in SF2")
status, stdout, stderr = self.server.execute(cmd_SF2)
result = self.server.execute("ps lax | grep python")
if "vxlan_tool.py" in result[1]: # pragma: no cover
LOG.debug("SSH firewall started")
self.setup_done = True
def run(self, result):
''' Creating client and server VMs to perform the test'''
host = self.context_cfg['host']
host_user = host.get('user', 'root')
ssh_port = host.get("ssh_port", ssh.DEFAULT_PORT)
host_pwd = host.get('password', 'opnfv')
host_ip = host.get('ip', None)
LOG.info("user:%s, host:%s", host_user, host_ip)
self.client = ssh.SSH(host_user, host_ip, password=host_pwd,
port=ssh_port)
self.client.wait(timeout=600)
if not self.setup_done: # pragma: no cover
self.setup()
target = self.context_cfg['target']
target_ip = target.get('ip', None)
cmd_client = "nc -w 5 -zv " + target_ip + " 22"
result = self.client.execute(cmd_client)
i = 0
if "timed out" in result[2]: # pragma: no cover
LOG.info('\033[92m' + "TEST 1 [PASSED] "
"==> SSH BLOCKED" + '\033[0m')
i = i + 1
else: # pragma: no cover
LOG.debug('\033[91m' + "TEST 1 [FAILED] "
"==> SSH NOT BLOCKED" + '\033[0m')
return
cmd_client = "nc -w 5 -zv " + target_ip + " 80"
LOG.info("Executing command: %s", cmd_client)
result = self.client.execute(cmd_client)
if "succeeded" in result[2]: # pragma: no cover
LOG.info('\033[92m' + "TEST 2 [PASSED] "
"==> HTTP WORKS" + '\033[0m')
i = i + 1
else: # pragma: no cover
LOG.debug('\033[91m' + "TEST 2 [FAILED] "
"==> HTTP BLOCKED" + '\033[0m')
return
self.tacker_classi = pkg_resources.resource_filename(
'yardstick.benchmark.scenarios.networking',
Sfc.TACKER_CHANGECLASSI)
''' calling Tacker to change the classifier '''
cmd_tacker = "%s" % (self.tacker_classi)
subprocess.call(cmd_tacker, shell=True)
cmd_client = "nc -w 5 -zv " + target_ip + " 80"
LOG.info("Executing command: %s", cmd_client)
result = self.client.execute(cmd_client)
LOG.info("Output client command: %s", result)
if "timed out" in result[2]: # pragma: no cover
LOG.info('\033[92m' + "TEST 3 [WORKS] "
"==> HTTP BLOCKED" + '\033[0m')
i = i + 1
else: # pragma: no cover
LOG.debug('\033[91m' + "TEST 3 [FAILED] "
"==> HTTP NOT BLOCKED" + '\033[0m')
return
cmd_client = "nc -zv " + target_ip + " 22"
result = self.client.execute(cmd_client + " \r")
LOG.debug(result)
if "succeeded" in result[2]: # pragma: no cover
LOG.info('\033[92m' + "TEST 4 [WORKS] "
"==> SSH WORKS" + '\033[0m')
i = i + 1
else: # pragma: no cover
LOG.debug('\033[91m' + "TEST 4 [FAILED] "
"==> SSH BLOCKED" + '\033[0m')
return
if i == 4: # pragma: no cover
for x in range(0, 5):
LOG.info('\033[92m' + "SFC TEST WORKED"
" :) \n" + '\033[0m')
def teardown(self):
''' for scenario teardown remove tacker VNFs, chains and classifiers'''
self.teardown_script = pkg_resources.resource_filename(
"yardstick.benchmark.scenarios.networking",
Sfc.TEARDOWN_SCRIPT)
subprocess.call(self.teardown_script, shell=True)
self.teardown_done = True
'''def _test(): # pragma: no cover
internal test function
logger = logging.getLogger("Sfc Yardstick")
logger.setLevel(logging.DEBUG)
result = {}
sfc = Sfc(scenario_cfg, context_cfg)
sfc.setup()
sfc.run(result)
print(result)
sfc.teardown()
if __name__ == '__main__': # pragma: no cover
_test()'''
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