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#!/usr/bin/env python3
# adt-cloud-worker
# Copyright (C) 2015 Canonical
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
"""Main entry point for adt-cloud-worker."""
from __future__ import print_function
import argparse
import configparser
import kombu
from kombu.log import get_logger
from kombu.mixins import ConsumerMixin
from kombu.utils.debug import setup_logging
import os
import shutil
import subprocess
import tempfile
logger = get_logger(__name__)
class Worker(ConsumerMixin):
def __init__(self, name, connection, queues):
self.name = name
self.connection = connection
self.queues = queues
def get_consumers(self, Consumer, channel):
return [Consumer(queues=self.queues, callbacks=[self.process])]
def process(self, body, message):
logger.info('Got: {}'.format(body))
# TODO: body validation
# Ack message once it's valid or message.reject()
message.ack()
result_dir = tempfile.mkdtemp(
prefix='adt-{}'.format(body['request_id']))
try:
# what information do we need from the message?
adt_run_args = [
'--apt-source', body['package_name'],
'--output-dir', result_dir, # TODO: replace me
]
if 'apt_pocket' in body:
adt_run_args += [
'--apt-pocket', body['apt_pocket'],
'--apt-upgrade',
]
adt_ssh_nova_args = [
'--',
'--flavor', body['nova_flavor'],
'--image', body['nova_image'],
]
exit_code = run_adt(
adt_run_args +
[
'---',
'ssh',
'-s', 'nova',
] +
adt_ssh_nova_args
)
# TODO: do sensible things with the exit code:
# 0 all tests passed
# 2 at least one test skipped
# 4 at least one test failed
# 6 at least one test failed and at least one test skipped
# 8 no tests in this package
# 12 erroneous package
# 16 testbed failure
# 20 other unexpected failures including bad usage
# TODO: tar/gzip the output directory.
# TODO: upload to swift instance at 'swift_container'
except Exception as e:
logger.error(e, exc_info=True)
finally:
# build the result message
body['worker'] = self.name
body['exit_code'] = exit_code
# TODO: send error logging to result-checker in the message
queue = self.connection.SimpleQueue('adt.results')
queue.put(body)
queue.close()
# Drop the result directory
# TODO: it could be possibly useful for clients.
shutil.rmtree(result_dir)
def run_adt(arguments):
"""Run adt-run with the given arguments.
Returns the exit code from adt-run.
"""
# TODO: We probably want something more clever here:
try:
subprocess.check_call(['adt-run'] + arguments)
except subprocess.CalledProcessError as e:
# log?
# TODO: filter log content to avoid leaking cloud credentials.
return e.returncode
return 0
def main():
setup_logging(loglevel='DEBUG', loggers=[''])
parser = argparse.ArgumentParser(
description='ADT cloud worker ...')
parser.add_argument('-c', '--conf', default='.adt-service.conf',
help='Configuration file path')
args = parser.parse_args()
# Load configuration options.
config = configparser.ConfigParser()
config.read(args.conf)
worker_name = config.get('adt', 'name')
routing_keys = config.get('adt', 'tags').split()
amqp_uris = config.get('amqp', 'uris').split()
# Setup nova environment variables based on the configuration file.
for k, v in config.items('nova'):
os.environ[k.upper()] = str(v)
adt_exchange = kombu.Exchange("adt.exchange", type="topic")
queues = []
for routing_key in routing_keys:
queues.append(
kombu.Queue('adt.requests.{}'.format(routing_key) ,
adt_exchange, routing_key=routing_key)
)
with kombu.Connection(amqp_uris) as conn:
try:
worker = Worker(worker_name, conn, queues)
worker.run()
except KeyboardInterrupt:
print('Bye!')
if __name__ == '__main__':
main()
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