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.cmd = []
  34         self.result = 0
  35         self.start_time = 0
  36         self.stop_time = 0
  37
  38     def run_kubetest(self):  # pylint: disable=too-many-branches
  39         """Run the test suites"""
  40         cmd_line = self.cmd
  41         self.__logger.info("Starting k8s test: '%s'.", cmd_line)
  42
  43         process = subprocess.Popen(cmd_line, stdout=subprocess.PIPE,
  44                                    stderr=subprocess.STDOUT)
  45         output = process.stdout.read()
  46         # Remove color code escape sequences
  47         output = re.sub(r'\x1B\[[0-?]*[ -/]*[@-~]', '', str(output))
  48
  49         remarks = []
  50         lines = output.split('\n')
  51         i = 0
  52         while i < len(lines):
  53             if '[k8s.io]' in lines[i]:
  54                 if i != 0 and 'seconds' in lines[i-1]:
  55                     self.__logger.debug(lines[i-1])
  56                 while lines[i] != '-'*len(lines[i]):
  57                     if lines[i].startswith('STEP:') or ('INFO:' in lines[i]):
  58                         break
  59                     self.__logger.debug(lines[i])
  60                     i = i+1
  61
  62             success = 'SUCCESS!' in lines[i]
  63             failure = 'FAIL!' in lines[i]
  64             if success or failure:
  65                 if i != 0 and 'seconds' in lines[i-1]:
  66                     remarks.append(lines[i-1])
  67                 remarks = remarks + lines[i].replace('--', '|').split('|')
  68                 break
  69             i = i+1
  70
  71         self.__logger.debug('-'*10)
  72         self.__logger.info("Remarks:")
  73         for remark in remarks:
  74             if 'seconds' in remark:
  75                 self.__logger.debug(remark)
  76             elif 'Passed' in remark:
  77                 self.__logger.info("Passed: %s", remark.split()[0])
  78             elif 'Skipped' in remark:
  79                 self.__logger.info("Skipped: %s", remark.split()[0])
  80             elif 'Failed' in remark:
  81                 self.__logger.info("Failed: %s", remark.split()[0])
  82
  83         if success:
  84             self.result = 100
  85         elif failure:
  86             self.result = 0
  87
  88     def run(self, **kwargs):
  89
  90         if not os.path.isfile(os.getenv('KUBECONFIG')):
  91             self.__logger.error(
  92                 "Cannot run k8s testcases. Config file not found ")
  93             return self.EX_RUN_ERROR
  94
  95         self.start_time = time.time()
  96         try:
  97             self.run_kubetest()
  98             res = self.EX_OK
  99         except Exception:  # pylint: disable=broad-except
 100             self.__logger.exception("Error with running kubetest:")
 101             res = self.EX_RUN_ERROR
 102
 103         self.stop_time = time.time()
 104         return res
 105
 106     def check_envs(self):  # pylint: disable=no-self-use
 107         """Check if required environment variables are set"""
 108         try:
 109             assert 'DEPLOY_SCENARIO' in os.environ
 110             assert 'KUBECONFIG' 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']