async def test_dispatch():
"""
Test message dispatch from a queue to 2 queues
"""
bus = MessageBus()
bus.add_queue("input")
# limit size to immediately stop execution for unit test
bus.add_queue("output1", maxsize=3)
bus.add_queue("output2", maxsize=3)
assert isinstance(bus.queues["input"], asyncio.Queue)
assert isinstance(bus.queues["output1"], asyncio.Queue)
assert isinstance(bus.queues["output2"], asyncio.Queue)
assert bus.queues["input"].qsize() == 0
assert bus.queues["output1"].qsize() == 0
assert bus.queues["output2"].qsize() == 0
await bus.send("input", 1)
await bus.send("input", 2)
# Convert all strings from input in uppercase
assert bus.queues["input"].qsize() == 2
task = asyncio.create_task(bus.dispatch("input", ["output1", "output2"]))
await bus.receive("output1") == 1
await bus.receive("output2") == 1
await bus.receive("output1") == 2
await bus.receive("output2") == 2
task.cancel()
assert bus.queues["input"].qsize() == 0
assert bus.queues["output1"].qsize() == 0
assert bus.queues["output2"].qsize() == 0
class Events(object):
"""
Listen to HTTP notifications from phabricator and trigger new try jobs
"""
def __init__(self, cache_root):
# Create message bus shared amongst processes
self.bus = MessageBus()
publish = taskcluster_config.secrets["PHABRICATOR"].get(
"publish", False)
# Check the redis support is enabled on Heroku
if heroku.in_dyno():
assert self.bus.redis_enabled is True, "Need Redis on Heroku"
community_config = taskcluster_config.secrets.get(
"taskcluster_community")
test_selection_enabled = taskcluster_config.secrets.get(
"test_selection_enabled", False)
# Run webserver & pulse on web dyno or single instance
if not heroku.in_dyno() or heroku.in_web_dyno():
# Create web server
self.webserver = WebServer(QUEUE_WEB_BUILDS)
self.webserver.register(self.bus)
# Create pulse listener
exchanges = {}
if taskcluster_config.secrets["autoland_enabled"]:
logger.info("Autoland ingestion is enabled")
# autoland ingestion
exchanges[QUEUE_PULSE_AUTOLAND] = [(PULSE_TASK_GROUP_RESOLVED,
["#.gecko-level-3.#"])]
# Create pulse listeners for bugbug test selection task and unit test failures.
if community_config is not None and test_selection_enabled:
exchanges[QUEUE_PULSE_TRY_TASK_END] = [
(PULSE_TASK_COMPLETED, ["#.gecko-level-1.#"]),
(PULSE_TASK_FAILED, ["#.gecko-level-1.#"]),
# https://bugzilla.mozilla.org/show_bug.cgi?id=1599863
# (
# "exchange/taskcluster-queue/v1/task-exception",
# ["#.gecko-level-1.#"],
# ),
]
self.community_pulse = PulseListener(
{
QUEUE_PULSE_BUGBUG_TEST_SELECT: [(
"exchange/taskcluster-queue/v1/task-completed",
["route.project.relman.bugbug.test_select"],
)]
},
taskcluster_config.secrets["communitytc_pulse_user"],
taskcluster_config.secrets["communitytc_pulse_password"],
"communitytc",
)
# Manually register to set queue as redis
self.community_pulse.bus = self.bus
self.bus.add_queue(QUEUE_PULSE_BUGBUG_TEST_SELECT, redis=True)
self.bus.add_queue(QUEUE_PULSE_TRY_TASK_END, redis=True)
else:
self.community_pulse = None
if exchanges:
self.pulse = PulseListener(
exchanges,
taskcluster_config.secrets["pulse_user"],
taskcluster_config.secrets["pulse_password"],
)
# Manually register to set queue as redis
self.pulse.bus = self.bus
self.bus.add_queue(QUEUE_PULSE_AUTOLAND, redis=True)
else:
self.pulse = None
else:
self.bugbug_utils = None
self.webserver = None
self.pulse = None
self.community_pulse = None
logger.info("Skipping webserver, bugbug and pulse consumers")
# Register queues for workers
self.bus.add_queue(QUEUE_PULSE_AUTOLAND, redis=True)
self.bus.add_queue(QUEUE_PULSE_BUGBUG_TEST_SELECT, redis=True)
self.bus.add_queue(QUEUE_PULSE_TRY_TASK_END, redis=True)
self.bus.add_queue(QUEUE_WEB_BUILDS, redis=True)
# Run work processes on worker dyno or single instance
if not heroku.in_dyno() or heroku.in_worker_dyno():
self.workflow = CodeReview(
api_key=taskcluster_config.secrets["PHABRICATOR"]["api_key"],
url=taskcluster_config.secrets["PHABRICATOR"]["url"],
publish=publish,
user_blacklist=taskcluster_config.secrets["user_blacklist"],
)
self.workflow.register(self.bus)
# Build mercurial worker and queue
self.mercurial = MercurialWorker(
QUEUE_MERCURIAL,
QUEUE_MERCURIAL_APPLIED,
repositories=self.workflow.get_repositories(
taskcluster_config.secrets["repositories"],
cache_root,
default_ssh_key=taskcluster_config.secrets["ssh_key"],
),
)
self.mercurial.register(self.bus)
# Setup monitoring for newly created tasks
self.monitoring = Monitoring(
taskcluster_config,
QUEUE_MONITORING,
taskcluster_config.secrets["admins"],
MONITORING_PERIOD,
)
self.monitoring.register(self.bus)
# Setup monitoring for newly created community tasks
if community_config is not None:
self.community_monitoring = Monitoring(
community_taskcluster_config,
QUEUE_MONITORING_COMMUNITY,
taskcluster_config.secrets["admins"],
MONITORING_PERIOD,
)
self.community_monitoring.register(self.bus)
else:
self.community_monitoring = None
self.bugbug_utils = BugbugUtils(self.workflow.api)
self.bugbug_utils.register(self.bus)
else:
self.workflow = None
self.mercurial = None
self.monitoring = None
self.community_monitoring = None
self.bugbug_utils = None
logger.info("Skipping workers consumers")
def run(self):
consumers = []
# Code review main workflow
if self.workflow:
consumers += [
# Process Phabricator build received from webserver
self.bus.run(self.workflow.process_build,
QUEUE_WEB_BUILDS,
sequential=False),
# Publish results on Phabricator
self.bus.run(
self.workflow.publish_results,
QUEUE_PHABRICATOR_RESULTS,
sequential=False,
),
# Trigger autoland tasks
self.bus.run(
self.workflow.trigger_autoland,
QUEUE_PULSE_AUTOLAND,
sequential=False,
),
# Send to phabricator results publication for normal processing and to bugbug for further analysis
self.bus.dispatch(
QUEUE_MERCURIAL_APPLIED,
[QUEUE_PHABRICATOR_RESULTS, QUEUE_BUGBUG_TRY_PUSH],
),
]
if self.bugbug_utils:
consumers += [
self.bus.run(self.bugbug_utils.process_build,
QUEUE_BUGBUG,
sequential=False),
self.bus.run(
self.bugbug_utils.process_push,
QUEUE_BUGBUG_TRY_PUSH,
sequential=False,
),
self.bus.run(
self.bugbug_utils.got_try_task_end,
QUEUE_PULSE_TRY_TASK_END,
sequential=False,
),
self.bus.run(
self.bugbug_utils.got_bugbug_test_select_end,
QUEUE_PULSE_BUGBUG_TEST_SELECT,
sequential=False,
),
]
# Add mercurial task
if self.mercurial:
consumers.append(self.mercurial.run())
# Add monitoring task
if self.monitoring:
consumers.append(self.monitoring.run())
# Add community monitoring task
if self.community_monitoring:
consumers.append(self.community_monitoring.run())
# Add pulse listener for task results.
if self.pulse:
consumers.append(self.pulse.run())
# Add communitytc pulse listener for test selection results.
if self.community_pulse:
consumers.append(self.community_pulse.run())
# Start the web server in its own process
if self.webserver:
self.webserver.start()
if consumers:
# Run all tasks concurrently
run_tasks(consumers)
else:
# Keep the web server process running
asyncio.get_event_loop().run_forever()
# Make sure any pending task is run.
run_tasks(asyncio.Task.all_tasks())
# Stop the webserver when other async processes are stopped
if self.webserver:
self.webserver.stop()