Source code for yardstick.cmd.commands.task

##############################################################################
# Copyright (c) 2015 Ericsson AB and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################

""" Handler for yardstick command 'task' """

import sys
import os
import yaml
import atexit
import ipaddress
import time
import logging
import uuid
from itertools import ifilter

from yardstick.benchmark.contexts.base import Context
from yardstick.benchmark.runners import base as base_runner
from yardstick.common.task_template import TaskTemplate
from yardstick.common.utils import cliargs

output_file_default = "/tmp/yardstick.out"
test_cases_dir_default = "tests/opnfv/test_cases/"
LOG = logging.getLogger(__name__)


[docs]class TaskCommands(object): '''Task commands. Set of commands to manage benchmark tasks. ''' @cliargs("inputfile", type=str, help="path to task or suite file", nargs=1) @cliargs("--task-args", dest="task_args", help="Input task args (dict in json). These args are used" "to render input task that is jinja2 template.") @cliargs("--task-args-file", dest="task_args_file", help="Path to the file with input task args (dict in " "json/yaml). These args are used to render input" "task that is jinja2 template.") @cliargs("--keep-deploy", help="keep context deployed in cloud", action="store_true") @cliargs("--parse-only", help="parse the config file and exit", action="store_true") @cliargs("--output-file", help="file where output is stored, default %s" % output_file_default, default=output_file_default) @cliargs("--suite", help="process test suite file instead of a task file", action="store_true")
[docs] def do_start(self, args): '''Start a benchmark scenario.''' atexit.register(atexit_handler) total_start_time = time.time() parser = TaskParser(args.inputfile[0]) suite_params = {} if args.suite: suite_params = parser.parse_suite() test_cases_dir = suite_params["test_cases_dir"] if test_cases_dir[-1] != os.sep: test_cases_dir += os.sep task_files = [test_cases_dir + task for task in suite_params["task_fnames"]] else: task_files = [parser.path] task_args = suite_params.get("task_args", [args.task_args]) task_args_fnames = suite_params.get("task_args_fnames", [args.task_args_file]) if args.parse_only: sys.exit(0) if os.path.isfile(args.output_file): os.remove(args.output_file) for i in range(0, len(task_files)): one_task_start_time = time.time() parser.path = task_files[i] task_name = os.path.splitext(os.path.basename(task_files[i]))[0] scenarios, run_in_parallel, meet_precondition = parser.parse_task( task_name, task_args[i], task_args_fnames[i]) if not meet_precondition: LOG.info("meet_precondition is %s, please check envrionment", meet_precondition) continue self._run(scenarios, run_in_parallel, args.output_file) if args.keep_deploy: # keep deployment, forget about stack # (hide it for exit handler) Context.list = [] else: for context in Context.list: context.undeploy() Context.list = [] one_task_end_time = time.time() LOG.info("task %s finished in %d secs", task_files[i], one_task_end_time - one_task_start_time) total_end_time = time.time() LOG.info("total finished in %d secs", total_end_time - total_start_time) print "Done, exiting"
def _run(self, scenarios, run_in_parallel, output_file): '''Deploys context and calls runners''' for context in Context.list: context.deploy() background_runners = [] # Start all background scenarios for scenario in ifilter(_is_background_scenario, scenarios): scenario["runner"] = dict(type="Duration", duration=1000000000) runner = run_one_scenario(scenario, output_file) background_runners.append(runner) runners = [] if run_in_parallel: for scenario in scenarios: if not _is_background_scenario(scenario): runner = run_one_scenario(scenario, output_file) runners.append(runner) # Wait for runners to finish for runner in runners: runner_join(runner) print "Runner ended, output in", output_file else: # run serially for scenario in scenarios: if not _is_background_scenario(scenario): runner = run_one_scenario(scenario, output_file) runner_join(runner) print "Runner ended, output in", output_file # Abort background runners for runner in background_runners: runner.abort() # Wait for background runners to finish for runner in background_runners: if runner.join(timeout=60) is None: # Nuke if it did not stop nicely base_runner.Runner.terminate(runner) runner_join(runner) else: base_runner.Runner.release(runner) print "Background task ended" # TODO: Move stuff below into TaskCommands class !?
[docs]class TaskParser(object): '''Parser for task config files in yaml format''' def __init__(self, path): self.path = path
[docs] def parse_suite(self): '''parse the suite file and return a list of task config file paths and lists of optional parameters if present''' print "Parsing suite file:", self.path try: with open(self.path) as stream: cfg = yaml.load(stream) except IOError as ioerror: sys.exit(ioerror) self._check_schema(cfg["schema"], "suite") print "Starting suite:", cfg["name"] test_cases_dir = cfg.get("test_cases_dir", test_cases_dir_default) task_fnames = [] task_args = [] task_args_fnames = [] for task in cfg["test_cases"]: task_fnames.append(task["file_name"]) if "task_args" in task: task_args.append(task["task_args"]) else: task_args.append(None) if "task_args_file" in task: task_args_fnames.append(task["task_args_file"]) else: task_args_fnames.append(None) suite_params = { "test_cases_dir": test_cases_dir, "task_fnames": task_fnames, "task_args": task_args, "task_args_fnames": task_args_fnames } return suite_params
[docs] def parse_task(self, task_name, task_args=None, task_args_file=None): '''parses the task file and return an context and scenario instances''' print "Parsing task config:", self.path try: kw = {} if task_args_file: with open(task_args_file) as f: kw.update(parse_task_args("task_args_file", f.read())) kw.update(parse_task_args("task_args", task_args)) except TypeError: raise TypeError() try: with open(self.path) as f: try: input_task = f.read() rendered_task = TaskTemplate.render(input_task, **kw) except Exception as e: print(("Failed to render template:\n%(task)s\n%(err)s\n") % {"task": input_task, "err": e}) raise e print(("Input task is:\n%s\n") % rendered_task) cfg = yaml.load(rendered_task) except IOError as ioerror: sys.exit(ioerror) self._check_schema(cfg["schema"], "task") meet_precondition = self._check_precondition(cfg) # TODO: support one or many contexts? Many would simpler and precise # TODO: support hybrid context type if "context" in cfg: context_cfgs = [cfg["context"]] elif "contexts" in cfg: context_cfgs = cfg["contexts"] else: context_cfgs = [{"type": "Dummy"}] for cfg_attrs in context_cfgs: context_type = cfg_attrs.get("type", "Heat") if "Heat" == context_type and "networks" in cfg_attrs: # config external_network based on env var for _, attrs in cfg_attrs["networks"].items(): attrs["external_network"] = os.environ.get( 'EXTERNAL_NETWORK', 'net04_ext') context = Context.get(context_type) context.init(cfg_attrs) run_in_parallel = cfg.get("run_in_parallel", False) # add tc and task id for influxdb extended tags task_id = str(uuid.uuid4()) for scenario in cfg["scenarios"]: scenario["tc"] = task_name scenario["task_id"] = task_id # TODO we need something better here, a class that represent the file return cfg["scenarios"], run_in_parallel, meet_precondition
def _check_schema(self, cfg_schema, schema_type): '''Check if config file is using the correct schema type''' if cfg_schema != "yardstick:" + schema_type + ":0.1": sys.exit("error: file %s has unknown schema %s" % (self.path, cfg_schema)) def _check_precondition(self, cfg): '''Check if the envrionment meet the preconditon''' if "precondition" in cfg: precondition = cfg["precondition"] installer_type = precondition.get("installer_type", None) deploy_scenarios = precondition.get("deploy_scenarios", None) installer_type_env = os.environ.get('INSTALL_TYPE', None) deploy_scenario_env = os.environ.get('DEPLOY_SCENARIO', None) if installer_type and installer_type_env: if installer_type_env not in installer_type: return False if deploy_scenarios and deploy_scenario_env: deploy_scenarios_list = deploy_scenarios.split(',') for deploy_scenario in deploy_scenarios_list: if deploy_scenario_env.startswith(deploy_scenario): return True return False return True
[docs]def atexit_handler(): '''handler for process termination''' base_runner.Runner.terminate_all() if len(Context.list) > 0: print "Undeploying all contexts" for context in Context.list: context.undeploy()
[docs]def is_ip_addr(addr): '''check if string addr is an IP address''' try: ipaddress.ip_address(unicode(addr)) return True except ValueError: return False
def _is_same_heat_context(host_attr, target_attr): '''check if two servers are in the same heat context host_attr: either a name for a server created by yardstick or a dict with attribute name mapping when using external heat templates target_attr: either a name for a server created by yardstick or a dict with attribute name mapping when using external heat templates ''' host = None target = None for context in Context.list: if context.__context_type__ != "Heat": continue host = context._get_server(host_attr) if host is None: continue target = context._get_server(target_attr) if target is None: return False # Both host and target is not None, then they are in the # same heat context. return True return False def _is_background_scenario(scenario): if "run_in_background" in scenario: return scenario["run_in_background"] else: return False
[docs]def run_one_scenario(scenario_cfg, output_file): '''run one scenario using context''' runner_cfg = scenario_cfg["runner"] runner_cfg['output_filename'] = output_file # TODO support get multi hosts/vms info context_cfg = {} if "host" in scenario_cfg: context_cfg['host'] = Context.get_server(scenario_cfg["host"]) if "target" in scenario_cfg: if is_ip_addr(scenario_cfg["target"]): context_cfg['target'] = {} context_cfg['target']["ipaddr"] = scenario_cfg["target"] else: context_cfg['target'] = Context.get_server(scenario_cfg["target"]) if _is_same_heat_context(scenario_cfg["host"], scenario_cfg["target"]): context_cfg["target"]["ipaddr"] = \ context_cfg["target"]["private_ip"] else: context_cfg["target"]["ipaddr"] = \ context_cfg["target"]["ip"] if "nodes" in scenario_cfg: context_cfg["nodes"] = parse_nodes_with_context(scenario_cfg) runner = base_runner.Runner.get(runner_cfg) print "Starting runner of type '%s'" % runner_cfg["type"] runner.run(scenario_cfg, context_cfg) return runner
[docs]def parse_nodes_with_context(scenario_cfg): '''paras the 'nodes' fields in scenario ''' nodes = scenario_cfg["nodes"] nodes_cfg = {} for nodename in nodes: nodes_cfg[nodename] = Context.get_server(nodes[nodename]) return nodes_cfg
[docs]def runner_join(runner): '''join (wait for) a runner, exit process at runner failure''' status = runner.join() base_runner.Runner.release(runner) if status != 0: sys.exit("Runner failed")
[docs]def parse_task_args(src_name, args): try: kw = args and yaml.safe_load(args) kw = {} if kw is None else kw except yaml.parser.ParserError as e: print_invalid_header(src_name, args) print(("%(source)s has to be YAML. Details:\n\n%(err)s\n") % {"source": src_name, "err": e}) raise TypeError() if not isinstance(kw, dict): print_invalid_header(src_name, args) print(("%(src)s had to be dict, actually %(src_type)s\n") % {"src": src_name, "src_type": type(kw)}) raise TypeError() return kw