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srworker.py
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srworker.py
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#!/usr/bin/env python
# This Source Code Form is subject to the terms of the Mozilla Public License,
# v. 2.0. If a copy of the MPL was not distributed with this file, You can
# obtain one at http://mozilla.org/MPL/2.0/.
import logging
import os
import subprocess
import stoneridge
class StoneRidgeException(Exception):
pass
class StoneRidgeWorker(stoneridge.QueueListener):
def setup(self):
self.srconffile = stoneridge.get_config_file()
self.unittest = stoneridge.get_config_bool('stoneridge', 'unittest')
self.workroot = stoneridge.get_config('stoneridge', 'work')
logging.debug('srconffile: %s' % (self.srconffile,))
logging.debug('unittest: %s' % (self.unittest,))
self.runconfig = None # Needs to be here so reset doesn't barf
self.reset()
def handle(self, srid, netconfig, tstamp, ldap):
# Create the directory where data we want to save from this run will go
srwork = os.path.join(self.workroot, srid, netconfig)
if os.path.exists(srwork):
srwork = '%s_%s' % (srwork, tstamp)
os.makedirs(srwork)
srout = os.path.join(srwork, 'out')
os.mkdir(srout)
# Have a logger just for this run
self.logdir = os.path.join(srout, 'logs')
os.makedirs(self.logdir)
logging.debug('Running test with logs in %s' % (self.logdir,))
logfile = os.path.join(self.logdir, '00_worker.log')
handler = logging.FileHandler(logfile)
formatter = logging.Formatter(fmt=stoneridge.LOG_FMT)
handler.setFormatter(formatter)
self.logger = logging.getLogger('%s_%s_%s' % (srid, netconfig, tstamp))
self.logger.setLevel(logging.DEBUG)
self.logger.addHandler(handler)
# Create the rest of the working space for this run
srdownload = os.path.join(srwork, 'download')
os.mkdir(srdownload)
firefox_path = stoneridge.get_config('machine', 'firefox_path')
srbindir = os.path.join(srwork, firefox_path)
metadata = os.path.join(srout, 'metadata.zip')
info = os.path.join(srout, 'info.json')
profile = os.path.join(srout, 'profile')
os.mkdir(profile)
self.srnetconfig = netconfig
self.uploaded = False
self.archive_on_failure = True
self.procno = 1
self.childlog = None
self.need_dns_reset = False
self.runconfig = os.path.join(srout, 'run.ini')
with file(self.runconfig, 'w') as f:
f.write('[run]\n')
f.write('netconfig = %s\n' % (netconfig,))
f.write('work = %s\n' % (srwork,))
f.write('download = %s\n' % (srdownload,))
f.write('bin = %s\n' % (srbindir,))
f.write('out = %s\n' % (srout,))
f.write('profile = %s\n' % (profile,))
f.write('metadata = %s\n' % (metadata,))
f.write('info = %s\n' % (info,))
f.write('tstamp = %s\n' % (tstamp,))
f.write('srid = %s\n' % (srid,))
if ldap:
f.write('ldap = %s\n' % (ldap,))
self.logger.debug('srnetconfig: %s' % (self.srnetconfig,))
self.logger.debug('uploaded: %s' % (self.uploaded,))
self.logger.debug('archive on failure: %s' %
(self.archive_on_failure,))
self.logger.debug('procno: %s' % (self.procno,))
self.logger.debug('childlog: %s' % (self.childlog,))
self.logger.debug('logdir: %s' % (self.logdir,))
self.logger.debug('runconfig: %s' % (self.runconfig,))
self.logger.debug('ldap: %s' % (ldap,))
self.logger.debug('profile: %s' % (profile,))
try:
self.run_test()
except StoneRidgeException as e:
self.logger.exception(e)
self.reset()
def reset(self):
self.srnetconfig = None
self.uploaded = False
self.archive_on_failure = True
self.procno = -1
self.childlog = None
self.logdir = None
self.logger = None
if self.runconfig and os.path.exists(self.runconfig):
os.unlink(self.runconfig)
self.runconfig = None
def do_error(self, stage):
"""Print an error and raise an exception that will be handled by the
top level
"""
self.logger.error('Error exit during %s' % (stage,))
raise StoneRidgeException('Error running %s: see %s\n' %
(stage, self.childlog))
def run_process(self, stage, *args):
"""Run a particular subprocess with the default arguments, as well as
any arguments requested by the caller
"""
script = 'sr%s.py' % (stage,)
logfile = os.path.join(self.logdir, '%02d_%s_%s.log' %
(self.procno, stage, self.srnetconfig))
self.procno += 1
command = [script,
'--config', self.srconffile,
'--runconfig', self.runconfig,
'--log', logfile]
command.extend(args)
if self.unittest:
# This code path is used for unit testing the worker
self.logger.debug('Would run %s' % (command,))
return
try:
stoneridge.run_process(*command, logger=self.logger)
except subprocess.CalledProcessError:
# The process failed to run correctly, we need to say so
self.childlog = logfile
if self.need_dns_reset:
# We were in the midst of having our dns all screwy, so we
# need to try our best to fix that. Let's hope it works!
# First of all, we don't want to archive or upload during
# the process of running the dns updater.
do_archive = self.archive_on_failure
self.archive_on_failure = False
uploaded = self.uploaded
self.uploaded = True
try:
self.run_process('dnsupdater', '--restore')
except StoneRidgeException:
logging.error('Was unable to reset DNS after failure')
# Reset this state back to where it was previously so the rest
# of this block can work as expected.
self.archive_on_failure = do_archive
self.uploaded = uploaded
if self.archive_on_failure:
# We've reached the point in our run where we have something to
# save off for usage. Archive it, but don't try to archive
# again if for some reason the archival process fails :)
self.archive_on_failure = False
try:
self.run_process('archiver')
except StoneRidgeException:
pass
if not self.uploaded:
self.uploaded = True
try:
self.run_process('uploader')
except StoneRidgeException:
pass
# Finally, bubble the error up to the top level
self.do_error(stage)
def run_test(self):
self.run_process('downloader')
self.run_process('unpacker')
self.run_process('infogatherer')
self.run_process('pcap', '--start')
self.run_process('dnsupdater')
self.need_dns_reset = True
self.run_process('dnscheck')
self.run_process('arpfixer')
self.run_process('runner')
self.need_dns_reset = False
self.run_process('dnsupdater', '--restore')
self.run_process('dnscheck', '--public')
self.run_process('pcap', '--stop')
self.run_process('collator')
self.archive_on_failure = False
self.run_process('archiver')
self.uploaded = True
self.run_process('uploader')
@stoneridge.main
def main():
parser = stoneridge.ArgumentParser()
parser.parse_args()
osname = stoneridge.get_config('machine', 'os')
queue = stoneridge.CLIENT_QUEUES[osname]
while True:
try:
worker = StoneRidgeWorker(queue)
worker.run()
except:
logging.exception('Worker failed')