mirror of
https://github.com/valitydev/salt.git
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126 lines
4.3 KiB
Python
126 lines
4.3 KiB
Python
# -*- coding: utf-8 -*-
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'''
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:codeauthor: Pedro Algarvio (pedro@algarvio.me)
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:copyright: Copyright 2015 by the SaltStack Team, see AUTHORS for more details.
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:license: Apache 2.0, see LICENSE for more details.
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pytestsalt.engines.pytest_engine
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Simple salt engine which will setup a socket to accept connections allowing us to know
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when a daemon is up and running
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'''
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# Import python libs
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from __future__ import absolute_import, print_function, unicode_literals
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import sys
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import errno
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import socket
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import logging
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# Import salt libs
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import salt.utils.event
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import salt.utils.asynchronous
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# Import 3rd-party libs
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from tornado import gen
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from tornado import ioloop
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from tornado import netutil
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from tornado import iostream
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log = logging.getLogger(__name__)
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__virtualname__ = 'salt_runtests'
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def __virtual__():
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return 'runtests_conn_check_port' in __opts__ # pylint: disable=undefined-variable
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def start():
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pytest_engine = PyTestEngine(__opts__) # pylint: disable=undefined-variable
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pytest_engine.start()
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class PyTestEngine(object):
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def __init__(self, opts):
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self.opts = opts
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self.sock = None
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def start(self):
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self.io_loop = ioloop.IOLoop()
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self.io_loop.make_current()
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self.io_loop.add_callback(self._start)
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self.io_loop.start()
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@gen.coroutine
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def _start(self):
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if self.opts['__role'] == 'minion':
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yield self.listen_to_minion_connected_event()
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else:
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self.io_loop.spawn_callback(self.fire_master_started_event)
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port = int(self.opts['runtests_conn_check_port'])
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log.info('Starting Pytest Engine(role=%s) on port %s', self.opts['__role'], port)
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self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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self.sock.setblocking(0)
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# bind the socket to localhost on the config provided port
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self.sock.bind(('localhost', port))
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# become a server socket
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self.sock.listen(5)
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with salt.utils.asynchronous.current_ioloop(self.io_loop):
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netutil.add_accept_handler(
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self.sock,
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self.handle_connection,
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)
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def handle_connection(self, connection, address):
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log.warning('Accepted connection from %s. Role: %s', address, self.opts['__role'])
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# We just need to know that the daemon running the engine is alive...
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try:
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connection.shutdown(socket.SHUT_RDWR) # pylint: disable=no-member
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connection.close()
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except socket.error as exc:
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if not sys.platform.startswith('darwin'):
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raise
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try:
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if exc.errno != errno.ENOTCONN:
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raise
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except AttributeError:
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# This is not macOS !?
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pass
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@gen.coroutine
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def listen_to_minion_connected_event(self):
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log.info('Listening for minion connected event...')
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minion_start_event_match = 'salt/minion/{0}/start'.format(self.opts['id'])
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event_bus = salt.utils.event.get_master_event(self.opts, self.opts['sock_dir'], listen=True)
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event_bus.subscribe(minion_start_event_match)
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while True:
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event = event_bus.get_event(full=True, no_block=True)
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if event is not None and event['tag'] == minion_start_event_match:
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log.info('Got minion connected event: %s', event)
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break
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yield gen.sleep(0.25)
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@gen.coroutine
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def fire_master_started_event(self):
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log.info('Firing salt-master started event...')
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event_bus = salt.utils.event.get_master_event(self.opts, self.opts['sock_dir'], listen=False)
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master_start_event_tag = 'salt/master/{0}/start'.format(self.opts['id'])
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load = {'id': self.opts['id'], 'tag': master_start_event_tag, 'data': {}}
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# One minute should be more than enough to fire these events every second in order
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# for pytest-salt to pickup that the master is running
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timeout = 60
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while True:
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timeout -= 1
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try:
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event_bus.fire_event(load, master_start_event_tag, timeout=500)
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if timeout <= 0:
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break
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yield gen.sleep(1)
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except iostream.StreamClosedError:
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break
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