functest_kubernetes/cnf_conformance/conformance.py

   1 #!/usr/bin/env python
   2
   3 # Copyright (c) 2020 Orange and others.
   4 #
   5 # All rights reserved. This program and the accompanying materials
   6 # are made available under the terms of the Apache License, Version 2.0
   7 # which accompanies this distribution, and is available at
   8 # http://www.apache.org/licenses/LICENSE-2.0
   9
  10 """
  11 The CNF Conformance program enables interoperability of Cloud native Network
  12 Functions (CNFs) from multiple vendors running on top of Kubernetes supplied by
  13 different vendors [1].
  14 [1] https://github.com/cncf/cnf-testsuite
  15 """
  16
  17 from __future__ import division
  18
  19 import glob
  20 import logging
  21 import os
  22 import re
  23 import shutil
  24 import subprocess
  25 import time
  26 import yaml
  27
  28 import prettytable
  29
  30 from xtesting.core import testcase
  31
  32
  33 class CNFConformance(testcase.TestCase):
  34     """ Implement CNF Conformance driver.
  35
  36     https://hackmd.io/@vulk/SkY54QnsU
  37     """
  38
  39     src_dir = '/src/cnf-testsuite'
  40     bin_dir = '/usr/local/bin'
  41     default_tag = 'workload'
  42
  43     __logger = logging.getLogger(__name__)
  44
  45     def __init__(self, **kwargs):
  46         super(CNFConformance, self).__init__(**kwargs)
  47         self.output_log_name = 'functest-kubernetes.log'
  48         self.output_debug_log_name = 'functest-kubernetes.debug.log'
  49
  50     def check_requirements(self):
  51         """Check if cnf-testsuite is in $PATH"""
  52         if not os.path.exists(os.path.join(self.bin_dir, 'cnf-testsuite')):
  53             self.__logger.warning(
  54                 "cnf-testsuite is not compiled for arm and arm64 for the "
  55                 "time being")
  56             self.is_skipped = True
  57
  58     def setup(self):
  59         """Implement initialization and pre-reqs steps"""
  60         if os.path.exists(os.path.join(self.src_dir, "results")):
  61             shutil.rmtree(os.path.join(self.src_dir, "results"))
  62         os.chdir(self.src_dir)
  63         cmd = ['cnf-testsuite', 'setup']
  64         output = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
  65         self.__logger.info("%s\n%s", " ".join(cmd), output.decode("utf-8"))
  66         cmd = ['cnf-testsuite', 'cnf_setup',
  67                'cnf-config=cnf-testsuite.yml']
  68         output = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
  69         self.__logger.info("%s\n%s", " ".join(cmd), output.decode("utf-8"))
  70
  71     def run_conformance(self, **kwargs):
  72         """Run CNF Conformance"""
  73         cmd = ['cnf-testsuite', kwargs.get("tag", self.default_tag)]
  74         output = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
  75         self.__logger.info("%s\n%s", " ".join(cmd), output.decode("utf-8"))
  76         lfiles = glob.glob(os.path.join(
  77             self.src_dir, 'results', 'cnf-testsuite-results-*.yml'))
  78         results = max(lfiles, key=os.path.getmtime)
  79         with open(os.path.join(self.src_dir, 'results', results)) as yfile:
  80             self.details = yaml.safe_load(yfile)
  81             msg = prettytable.PrettyTable(
  82                 header_style='upper', padding_width=5,
  83                 field_names=['name', 'status'])
  84             for item in self.details['items']:
  85                 msg.add_row([item['name'], item['status']])
  86             self.__logger.info("\n\n%s\n", msg.get_string())
  87         grp = re.search(
  88             r'Final .* score: (\d+) of (\d+)', output.decode("utf-8"))
  89         if grp:
  90             self.result = int(grp.group(1)) / int(grp.group(2)) * 100
  91         if not os.path.exists(self.res_dir):
  92             os.makedirs(self.res_dir)
  93         shutil.copy2(
  94             os.path.join(self.src_dir, 'results', results),
  95             os.path.join(self.res_dir, 'cnf-testsuite-results.yml'))
  96
  97     def run(self, **kwargs):
  98         """"Running the test with example CNF"""
  99         self.start_time = time.time()
 100         try:
 101             self.setup()
 102             self.run_conformance(**kwargs)
 103         except Exception:  # pylint: disable=broad-except
 104             self.__logger.exception("Can not run CNF Conformance")
 105         self.stop_time = time.time()
 106
 107     def clean(self):
 108         cmd = ['cnf-testsuite', 'cnf_cleanup',
 109                'cnf-config=cnf-testsuite.yml']
 110         output = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
 111         self.__logger.info("%s\n%s", " ".join(cmd), output.decode("utf-8"))