functest_kubernetes/k8stest.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright (c) 2018 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
  11 """
  12 Define the parent for Kubernetes testing.
  13 """
  14
  15 from __future__ import division
  16
  17 import logging
  18 import os
  19 import re
  20 import subprocess
  21 import time
  22
  23 from xtesting.core import testcase
  24
  25
  26 class K8sTesting(testcase.TestCase):
  27     """Kubernetes test runner"""
  28
  29     __logger = logging.getLogger(__name__)
  30
  31     def __init__(self, **kwargs):
  32         super(K8sTesting, self).__init__(**kwargs)
  33         self.config = '/root/.kube/config'
  34         self.cmd = []
  35         self.result = 0
  36         self.start_time = 0
  37         self.stop_time = 0
  38
  39     def run_kubetest(self):  # pylint: disable=too-many-branches
  40         """Run the test suites"""
  41         cmd_line = self.cmd
  42         self.__logger.info("Starting k8s test: '%s'.", cmd_line)
  43
  44         process = subprocess.Popen(cmd_line, stdout=subprocess.PIPE,
  45                                    stderr=subprocess.STDOUT)
  46         output = process.stdout.read()
  47         # Remove color code escape sequences
  48         output = re.sub(r'\x1B\[[0-?]*[ -/]*[@-~]', '', str(output))
  49
  50         remarks = []
  51         lines = output.split('\n')
  52         i = 0
  53         while i < len(lines):
  54             if '[k8s.io]' in lines[i]:
  55                 if i != 0 and 'seconds' in lines[i - 1]:
  56                     self.__logger.debug(lines[i - 1])
  57                 while lines[i] != '-' * len(lines[i]):
  58                     if lines[i].startswith('STEP:') or ('INFO:' in lines[i]):
  59                         break
  60                     self.__logger.debug(lines[i])
  61                     i = i + 1
  62
  63             success = 'SUCCESS!' in lines[i]
  64             failure = 'FAIL!' in lines[i]
  65             if success or failure:
  66                 if i != 0 and 'seconds' in lines[i - 1]:
  67                     remarks.append(lines[i - 1])
  68                 remarks = remarks + lines[i].replace('--', '|').split('|')
  69                 break
  70             i = i + 1
  71
  72         self.__logger.debug('-' * 10)
  73         self.__logger.info("Remarks:")
  74         for remark in remarks:
  75             if 'seconds' in remark:
  76                 self.__logger.debug(remark)
  77             elif 'Passed' in remark:
  78                 self.__logger.info("Passed: %s", remark.split()[0])
  79             elif 'Skipped' in remark:
  80                 self.__logger.info("Skipped: %s", remark.split()[0])
  81             elif 'Failed' in remark:
  82                 self.__logger.info("Failed: %s", remark.split()[0])
  83
  84         if success:
  85             self.result = 100
  86         elif failure:
  87             self.result = 0
  88
  89     def run(self, **kwargs):
  90
  91         if not os.path.isfile(self.config):
  92             self.__logger.error(
  93                 "Cannot run k8s testcases. Config file not found ")
  94             return self.EX_RUN_ERROR
  95
  96         self.start_time = time.time()
  97         try:
  98             self.run_kubetest()
  99             res = self.EX_OK
 100         except Exception:  # pylint: disable=broad-except
 101             self.__logger.exception("Error with running kubetest:")
 102             res = self.EX_RUN_ERROR
 103
 104         self.stop_time = time.time()
 105         return res
 106
 107     def check_envs(self):  # pylint: disable=no-self-use
 108         """Check if required environment variables are set"""
 109         try:
 110             assert 'DEPLOY_SCENARIO' in os.environ
 111             assert 'KUBE_MASTER_IP' in os.environ
 112             assert 'KUBERNETES_PROVIDER' in os.environ
 113             assert 'KUBE_MASTER_URL' in os.environ
 114         except Exception as ex:
 115             raise Exception("Cannot run k8s testcases. "
 116                             "Please check env var: %s" % str(ex))
 117
 118
 119 class K8sSmokeTest(K8sTesting):
 120     """Kubernetes smoke test suite"""
 121     def __init__(self, **kwargs):
 122         if "case_name" not in kwargs:
 123             kwargs.get("case_name", 'k8s_smoke')
 124         super(K8sSmokeTest, self).__init__(**kwargs)
 125         self.check_envs()
 126         self.cmd = ['/src/k8s.io/kubernetes/cluster/test-smoke.sh', '--host',
 127                     os.getenv('KUBE_MASTER_URL')]
 128
 129
 130 class K8sConformanceTest(K8sTesting):
 131     """Kubernetes conformance test suite"""
 132     def __init__(self, **kwargs):
 133         if "case_name" not in kwargs:
 134             kwargs.get("case_name", 'k8s_conformance')
 135         super(K8sConformanceTest, self).__init__(**kwargs)
 136         self.check_envs()
 137         self.cmd = ['/src/k8s.io/kubernetes/_output/bin/e2e.test',
 138                     '-ginkgo.focus', 'Conformance',
 139                     '-kubeconfig', self.config]