Merge "Adding sample yardstick.conf & pod files to help describe the topology"
[yardstick.git] / yardstick / benchmark / core / task.py
1 ##############################################################################
2 # Copyright (c) 2015 Ericsson AB and others.
3 #
4 # All rights reserved. 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 # http://www.apache.org/licenses/LICENSE-2.0
8 ##############################################################################
9
10 """ Handler for yardstick command 'task' """
11
12 from __future__ import absolute_import
13 from __future__ import print_function
14 import sys
15 import os
16 import yaml
17 import atexit
18 import ipaddress
19 import time
20 import logging
21 import uuid
22 import errno
23 from six.moves import filter
24
25 from yardstick.benchmark.contexts.base import Context
26 from yardstick.benchmark.runners import base as base_runner
27 from yardstick.common.task_template import TaskTemplate
28 from yardstick.common.utils import source_env
29 from yardstick.common import constants
30
31 output_file_default = "/tmp/yardstick.out"
32 test_cases_dir_default = "tests/opnfv/test_cases/"
33 LOG = logging.getLogger(__name__)
34
35
36 class Task(object):     # pragma: no cover
37     """Task commands.
38
39        Set of commands to manage benchmark tasks.
40     """
41
42     def start(self, args, **kwargs):
43         """Start a benchmark scenario."""
44
45         atexit.register(atexit_handler)
46
47         self.task_id = kwargs.get('task_id', str(uuid.uuid4()))
48
49         check_environment()
50
51         total_start_time = time.time()
52         parser = TaskParser(args.inputfile[0])
53
54         if args.suite:
55             # 1.parse suite, return suite_params info
56             task_files, task_args, task_args_fnames = \
57                 parser.parse_suite()
58         else:
59             task_files = [parser.path]
60             task_args = [args.task_args]
61             task_args_fnames = [args.task_args_file]
62
63         LOG.info("\ntask_files:%s, \ntask_args:%s, \ntask_args_fnames:%s",
64                  task_files, task_args, task_args_fnames)
65
66         if args.parse_only:
67             sys.exit(0)
68
69         # parse task_files
70         for i in range(0, len(task_files)):
71             one_task_start_time = time.time()
72             parser.path = task_files[i]
73             scenarios, run_in_parallel, meet_precondition = parser.parse_task(
74                 self.task_id, task_args[i], task_args_fnames[i])
75
76             if not meet_precondition:
77                 LOG.info("meet_precondition is %s, please check envrionment",
78                          meet_precondition)
79                 continue
80
81             self._run(scenarios, run_in_parallel, args.output_file)
82
83             if args.keep_deploy:
84                 # keep deployment, forget about stack
85                 # (hide it for exit handler)
86                 Context.list = []
87             else:
88                 for context in Context.list:
89                     context.undeploy()
90                 Context.list = []
91             one_task_end_time = time.time()
92             LOG.info("task %s finished in %d secs", task_files[i],
93                      one_task_end_time - one_task_start_time)
94
95         total_end_time = time.time()
96         LOG.info("total finished in %d secs",
97                  total_end_time - total_start_time)
98
99         print("Done, exiting")
100
101     def _run(self, scenarios, run_in_parallel, output_file):
102         """Deploys context and calls runners"""
103         for context in Context.list:
104             context.deploy()
105
106         background_runners = []
107
108         # Start all background scenarios
109         for scenario in filter(_is_background_scenario, scenarios):
110             scenario["runner"] = dict(type="Duration", duration=1000000000)
111             runner = run_one_scenario(scenario, output_file)
112             background_runners.append(runner)
113
114         runners = []
115         if run_in_parallel:
116             for scenario in scenarios:
117                 if not _is_background_scenario(scenario):
118                     runner = run_one_scenario(scenario, output_file)
119                     runners.append(runner)
120
121             # Wait for runners to finish
122             for runner in runners:
123                 runner_join(runner)
124                 print("Runner ended, output in", output_file)
125         else:
126             # run serially
127             for scenario in scenarios:
128                 if not _is_background_scenario(scenario):
129                     runner = run_one_scenario(scenario, output_file)
130                     runner_join(runner)
131                     print("Runner ended, output in", output_file)
132
133         # Abort background runners
134         for runner in background_runners:
135             runner.abort()
136
137         # Wait for background runners to finish
138         for runner in background_runners:
139             if runner.join(timeout=60) is None:
140                 # Nuke if it did not stop nicely
141                 base_runner.Runner.terminate(runner)
142                 runner_join(runner)
143             else:
144                 base_runner.Runner.release(runner)
145             print("Background task ended")
146
147
148 # TODO: Move stuff below into TaskCommands class !?
149
150
151 class TaskParser(object):       # pragma: no cover
152     """Parser for task config files in yaml format"""
153
154     def __init__(self, path):
155         self.path = path
156
157     def _meet_constraint(self, task, cur_pod, cur_installer):
158         if "constraint" in task:
159             constraint = task.get('constraint', None)
160             if constraint is not None:
161                 tc_fit_pod = constraint.get('pod', None)
162                 tc_fit_installer = constraint.get('installer', None)
163                 LOG.info("cur_pod:%s, cur_installer:%s,tc_constraints:%s",
164                          cur_pod, cur_installer, constraint)
165                 if cur_pod and tc_fit_pod and cur_pod not in tc_fit_pod:
166                     return False
167                 if cur_installer and tc_fit_installer and \
168                         cur_installer not in tc_fit_installer:
169                     return False
170         return True
171
172     def _get_task_para(self, task, cur_pod):
173         task_args = task.get('task_args', None)
174         if task_args is not None:
175             task_args = task_args.get(cur_pod, None)
176         task_args_fnames = task.get('task_args_fnames', None)
177         if task_args_fnames is not None:
178             task_args_fnames = task_args_fnames.get(cur_pod, None)
179         return task_args, task_args_fnames
180
181     def parse_suite(self):
182         """parse the suite file and return a list of task config file paths
183            and lists of optional parameters if present"""
184         LOG.info("\nParsing suite file:%s", self.path)
185
186         try:
187             with open(self.path) as stream:
188                 cfg = yaml.load(stream)
189         except IOError as ioerror:
190             sys.exit(ioerror)
191
192         self._check_schema(cfg["schema"], "suite")
193         LOG.info("\nStarting scenario:%s", cfg["name"])
194
195         test_cases_dir = cfg.get("test_cases_dir", test_cases_dir_default)
196         test_cases_dir = os.path.join(constants.YARDSTICK_ROOT_PATH,
197                                       test_cases_dir)
198         if test_cases_dir[-1] != os.sep:
199             test_cases_dir += os.sep
200
201         cur_pod = os.environ.get('NODE_NAME', None)
202         cur_installer = os.environ.get('INSTALLER_TYPE', None)
203
204         valid_task_files = []
205         valid_task_args = []
206         valid_task_args_fnames = []
207
208         for task in cfg["test_cases"]:
209             # 1.check file_name
210             if "file_name" in task:
211                 task_fname = task.get('file_name', None)
212                 if task_fname is None:
213                     continue
214             else:
215                 continue
216             # 2.check constraint
217             if self._meet_constraint(task, cur_pod, cur_installer):
218                 valid_task_files.append(test_cases_dir + task_fname)
219             else:
220                 continue
221             # 3.fetch task parameters
222             task_args, task_args_fnames = self._get_task_para(task, cur_pod)
223             valid_task_args.append(task_args)
224             valid_task_args_fnames.append(task_args_fnames)
225
226         return valid_task_files, valid_task_args, valid_task_args_fnames
227
228     def parse_task(self, task_id, task_args=None, task_args_file=None):
229         """parses the task file and return an context and scenario instances"""
230         print("Parsing task config:", self.path)
231
232         try:
233             kw = {}
234             if task_args_file:
235                 with open(task_args_file) as f:
236                     kw.update(parse_task_args("task_args_file", f.read()))
237             kw.update(parse_task_args("task_args", task_args))
238         except TypeError:
239             raise TypeError()
240
241         try:
242             with open(self.path) as f:
243                 try:
244                     input_task = f.read()
245                     rendered_task = TaskTemplate.render(input_task, **kw)
246                 except Exception as e:
247                     print("Failed to render template:\n%(task)s\n%(err)s\n"
248                           % {"task": input_task, "err": e})
249                     raise e
250                 print("Input task is:\n%s\n" % rendered_task)
251
252                 cfg = yaml.load(rendered_task)
253         except IOError as ioerror:
254             sys.exit(ioerror)
255
256         self._check_schema(cfg["schema"], "task")
257         meet_precondition = self._check_precondition(cfg)
258
259         # TODO: support one or many contexts? Many would simpler and precise
260         # TODO: support hybrid context type
261         if "context" in cfg:
262             context_cfgs = [cfg["context"]]
263         elif "contexts" in cfg:
264             context_cfgs = cfg["contexts"]
265         else:
266             context_cfgs = [{"type": "Dummy"}]
267
268         name_suffix = '-{}'.format(task_id[:8])
269         for cfg_attrs in context_cfgs:
270             cfg_attrs['name'] = '{}{}'.format(cfg_attrs['name'], name_suffix)
271             context_type = cfg_attrs.get("type", "Heat")
272             if "Heat" == context_type and "networks" in cfg_attrs:
273                 # bugfix: if there are more than one network,
274                 # only add "external_network" on first one.
275                 # the name of netwrok should follow this rule:
276                 # test, test2, test3 ...
277                 # sort network with the length of network's name
278                 sorted_networks = sorted(cfg_attrs["networks"])
279                 # config external_network based on env var
280                 cfg_attrs["networks"][sorted_networks[0]]["external_network"] \
281                     = os.environ.get("EXTERNAL_NETWORK", "net04_ext")
282
283             context = Context.get(context_type)
284             context.init(cfg_attrs)
285
286         run_in_parallel = cfg.get("run_in_parallel", False)
287
288         # add tc and task id for influxdb extended tags
289         for scenario in cfg["scenarios"]:
290             task_name = os.path.splitext(os.path.basename(self.path))[0]
291             scenario["tc"] = task_name
292             scenario["task_id"] = task_id
293
294             change_server_name(scenario, name_suffix)
295
296             try:
297                 for node in scenario['nodes']:
298                     scenario['nodes'][node] += name_suffix
299             except KeyError:
300                 pass
301
302         # TODO we need something better here, a class that represent the file
303         return cfg["scenarios"], run_in_parallel, meet_precondition
304
305     def _check_schema(self, cfg_schema, schema_type):
306         """Check if config file is using the correct schema type"""
307
308         if cfg_schema != "yardstick:" + schema_type + ":0.1":
309             sys.exit("error: file %s has unknown schema %s" % (self.path,
310                                                                cfg_schema))
311
312     def _check_precondition(self, cfg):
313         """Check if the envrionment meet the preconditon"""
314
315         if "precondition" in cfg:
316             precondition = cfg["precondition"]
317             installer_type = precondition.get("installer_type", None)
318             deploy_scenarios = precondition.get("deploy_scenarios", None)
319             tc_fit_pods = precondition.get("pod_name", None)
320             installer_type_env = os.environ.get('INSTALL_TYPE', None)
321             deploy_scenario_env = os.environ.get('DEPLOY_SCENARIO', None)
322             pod_name_env = os.environ.get('NODE_NAME', None)
323
324             LOG.info("installer_type: %s, installer_type_env: %s",
325                      installer_type, installer_type_env)
326             LOG.info("deploy_scenarios: %s, deploy_scenario_env: %s",
327                      deploy_scenarios, deploy_scenario_env)
328             LOG.info("tc_fit_pods: %s, pod_name_env: %s",
329                      tc_fit_pods, pod_name_env)
330             if installer_type and installer_type_env:
331                 if installer_type_env not in installer_type:
332                     return False
333             if deploy_scenarios and deploy_scenario_env:
334                 deploy_scenarios_list = deploy_scenarios.split(',')
335                 for deploy_scenario in deploy_scenarios_list:
336                     if deploy_scenario_env.startswith(deploy_scenario):
337                         return True
338                 return False
339             if tc_fit_pods and pod_name_env:
340                 if pod_name_env not in tc_fit_pods:
341                     return False
342         return True
343
344
345 def atexit_handler():
346     """handler for process termination"""
347     base_runner.Runner.terminate_all()
348
349     if len(Context.list) > 0:
350         print("Undeploying all contexts")
351         for context in Context.list:
352             context.undeploy()
353
354
355 def is_ip_addr(addr):
356     """check if string addr is an IP address"""
357     try:
358         ipaddress.ip_address(addr.encode('utf-8'))
359         return True
360     except ValueError:
361         return False
362
363
364 def _is_same_heat_context(host_attr, target_attr):
365     """check if two servers are in the same heat context
366     host_attr: either a name for a server created by yardstick or a dict
367     with attribute name mapping when using external heat templates
368     target_attr: either a name for a server created by yardstick or a dict
369     with attribute name mapping when using external heat templates
370     """
371     host = None
372     target = None
373     for context in Context.list:
374         if context.__context_type__ != "Heat":
375             continue
376
377         host = context._get_server(host_attr)
378         if host is None:
379             continue
380
381         target = context._get_server(target_attr)
382         if target is None:
383             return False
384
385         # Both host and target is not None, then they are in the
386         # same heat context.
387         return True
388
389     return False
390
391
392 def _is_background_scenario(scenario):
393     if "run_in_background" in scenario:
394         return scenario["run_in_background"]
395     else:
396         return False
397
398
399 def run_one_scenario(scenario_cfg, output_file):
400     """run one scenario using context"""
401     runner_cfg = scenario_cfg["runner"]
402     runner_cfg['output_filename'] = output_file
403
404     # TODO support get multi hosts/vms info
405     context_cfg = {}
406     if "host" in scenario_cfg:
407         context_cfg['host'] = Context.get_server(scenario_cfg["host"])
408
409     if "target" in scenario_cfg:
410         if is_ip_addr(scenario_cfg["target"]):
411             context_cfg['target'] = {}
412             context_cfg['target']["ipaddr"] = scenario_cfg["target"]
413         else:
414             context_cfg['target'] = Context.get_server(scenario_cfg["target"])
415             if _is_same_heat_context(scenario_cfg["host"],
416                                      scenario_cfg["target"]):
417                 context_cfg["target"]["ipaddr"] = \
418                     context_cfg["target"]["private_ip"]
419             else:
420                 context_cfg["target"]["ipaddr"] = \
421                     context_cfg["target"]["ip"]
422
423     if "targets" in scenario_cfg:
424         ip_list = []
425         for target in scenario_cfg["targets"]:
426             if is_ip_addr(target):
427                 ip_list.append(target)
428                 context_cfg['target'] = {}
429             else:
430                 context_cfg['target'] = Context.get_server(target)
431                 if _is_same_heat_context(scenario_cfg["host"], target):
432                     ip_list.append(context_cfg["target"]["private_ip"])
433                 else:
434                     ip_list.append(context_cfg["target"]["ip"])
435         context_cfg['target']['ipaddr'] = ','.join(ip_list)
436
437     if "nodes" in scenario_cfg:
438         context_cfg["nodes"] = parse_nodes_with_context(scenario_cfg)
439     runner = base_runner.Runner.get(runner_cfg)
440
441     print("Starting runner of type '%s'" % runner_cfg["type"])
442     runner.run(scenario_cfg, context_cfg)
443
444     return runner
445
446
447 def parse_nodes_with_context(scenario_cfg):
448     """paras the 'nodes' fields in scenario """
449     nodes = scenario_cfg["nodes"]
450
451     nodes_cfg = {}
452     for nodename in nodes:
453         nodes_cfg[nodename] = Context.get_server(nodes[nodename])
454
455     return nodes_cfg
456
457
458 def runner_join(runner):
459     """join (wait for) a runner, exit process at runner failure"""
460     status = runner.join()
461     base_runner.Runner.release(runner)
462     if status != 0:
463         sys.exit("Runner failed")
464
465
466 def print_invalid_header(source_name, args):
467     print("Invalid %(source)s passed:\n\n %(args)s\n"
468           % {"source": source_name, "args": args})
469
470
471 def parse_task_args(src_name, args):
472     try:
473         kw = args and yaml.safe_load(args)
474         kw = {} if kw is None else kw
475     except yaml.parser.ParserError as e:
476         print_invalid_header(src_name, args)
477         print("%(source)s has to be YAML. Details:\n\n%(err)s\n"
478               % {"source": src_name, "err": e})
479         raise TypeError()
480
481     if not isinstance(kw, dict):
482         print_invalid_header(src_name, args)
483         print("%(src)s had to be dict, actually %(src_type)s\n"
484               % {"src": src_name, "src_type": type(kw)})
485         raise TypeError()
486     return kw
487
488
489 def check_environment():
490     auth_url = os.environ.get('OS_AUTH_URL', None)
491     if not auth_url:
492         try:
493             source_env(constants.OPENSTACK_RC_FILE)
494         except IOError as e:
495             if e.errno != errno.EEXIST:
496                 raise
497             LOG.debug('OPENRC file not found')
498
499
500 def change_server_name(scenario, suffix):
501     try:
502         scenario['host'] += suffix
503     except KeyError:
504         pass
505
506     try:
507         scenario['target'] += suffix
508     except KeyError:
509         pass
510
511     try:
512         key = 'targets'
513         scenario[key] = ['{}{}'.format(a, suffix) for a in scenario[key]]
514     except KeyError:
515         pass