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#!/usr/bin/env python
##############################################################################
# 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
##############################################################################
""" yardstick - command line tool for managing benchmarks
Example invocation:
$ yardstick samples/ping-task.yaml
"""
import sys
import yaml
import atexit
import pkg_resources
from yardstick.benchmark.context.model import Context
from yardstick.benchmark.runners import base as base_runner
from yardstick.cmdparser import CmdParser
class TaskParser(object):
'''Parser for task config files in yaml format'''
def __init__(self, path):
self.path = path
def parse(self):
'''parses the task file and return an context and scenario instances'''
print "Parsing task config:", self.path
try:
with open(self.path) as stream:
cfg = yaml.load(stream)
except IOError as ioerror:
sys.exit(ioerror)
if cfg["schema"] != "yardstick:task:0.1":
sys.exit("error: file %s has unknown schema %s" % (self.path,
cfg["schema"]))
# TODO: support one or many contexts? Many would simpler and precise
if "context" in cfg:
context_cfgs = [cfg["context"]]
else:
context_cfgs = cfg["contexts"]
for cfg_attrs in context_cfgs:
context = Context()
context.init(cfg_attrs)
run_in_parallel = cfg.get("run_in_parallel", False)
# TODO we need something better here, a class that represent the file
return cfg["scenarios"], run_in_parallel
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()
def run_one_scenario(scenario_cfg, output_file):
'''run one scenario using context'''
key_filename = pkg_resources.resource_filename(
'yardstick.resources', 'files/yardstick_key')
host = Context.get_server(scenario_cfg["host"])
runner_cfg = scenario_cfg["runner"]
runner_cfg['host'] = host.floating_ip["ipaddr"]
runner_cfg['user'] = host.context.user
runner_cfg['key_filename'] = key_filename
runner_cfg['output_filename'] = output_file
# TODO target should be optional to support single VM scenarios
target = Context.get_server(scenario_cfg["target"])
if target.floating_ip:
runner_cfg['target'] = target.floating_ip["ipaddr"]
# TODO scenario_cfg["ipaddr"] is bad, "dest_ip" is better
if host.context != target.context:
# target is in another context, get its public IP
scenario_cfg["ipaddr"] = target.floating_ip["ipaddr"]
else:
# TODO hardcoded name below, a server can be attached to several nets
scenario_cfg["ipaddr"] = target.ports["test"]["ipaddr"]
runner = base_runner.Runner.get(runner_cfg)
print "Starting runner of type '%s'" % runner_cfg["type"]
runner.run(scenario_cfg["type"], scenario_cfg)
return runner
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")
def main():
'''yardstick main'''
atexit.register(atexit_handler)
prog_args = CmdParser().parse_args()
parser = TaskParser(prog_args.taskfile[0])
scenarios, run_in_parallel = parser.parse()
if prog_args.parse_only:
sys.exit(0)
for context in Context.list:
context.deploy()
runners = []
if run_in_parallel:
for scenario in scenarios:
runner = run_one_scenario(scenario, prog_args.output_file)
runners.append(runner)
# Wait for runners to finish
for runner in runners:
runner_join(runner)
print "Runner ended, output in", prog_args.output_file
else:
# run serially
for scenario in scenarios:
runner = run_one_scenario(scenario, prog_args.output_file)
runner_join(runner)
print "Runner ended, output in", prog_args.output_file
if prog_args.keep_deploy:
# keep deployment, forget about stack (hide it for exit handler)
Context.list = []
else:
for context in Context.list:
context.undeploy()
print "Done, exiting"
if __name__ == '__main__':
main()
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