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4546163e83
* registry: implements the OCI 1.1 referrers API Migrations: - Adds a subject column for lookup - Adds a subject_backfilled column to track status of the backfilling of existing manifests - Adds a manifest_json column making use of postgres' JSONB support, for future use. Manifestsubjectbackfillworker: Indexes existing manifests for possible existing subject field. * Deprecate IGNORE_UNKNOWN_MEDIATYPES * Cleanup
117 lines
3.6 KiB
Python
117 lines
3.6 KiB
Python
import json
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import logging
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import time
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from peewee import fn
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import features
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from app import app
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from data.database import Manifest
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from image.shared.schemas import ManifestException, parse_manifest_from_bytes
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from util.bytes import Bytes
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from util.log import logfile_path
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from util.migrate.allocator import yield_random_entries
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from workers.gunicorn_worker import GunicornWorker
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from workers.worker import Worker
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logger = logging.getLogger(__name__)
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WORKER_FREQUENCY = app.config.get("MANIFEST_SUBJECT_BACKFILL_WORKER_FREQUENCY", 60)
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class ManifestSubjectBackfillWorker(Worker):
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"""
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Worker which backfills the newly added subject fields onto Manifest.
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"""
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def __init__(self):
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super().__init__()
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self.add_operation(self._backfill_manifest_subject, WORKER_FREQUENCY)
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def _backfill_manifest_subject(self):
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try:
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Manifest.select().where(
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Manifest.subject_backfilled == False | Manifest.subject_backfilled >> None
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).get()
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except Manifest.DoesNotExist:
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logger.debug("Manifest subject backfill worker has completed; skipping")
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return False
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iterator = yield_random_entries(
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lambda: Manifest.select().where(Manifest.subject_backfilled == False),
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Manifest.id,
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250,
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Manifest.select(fn.Max(Manifest.id)).scalar(),
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1,
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)
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for manifest_row, abt, _ in iterator:
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if manifest_row.subject_backfilled:
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logger.debug("Another worker preempted this worker")
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abt.set()
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continue
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logger.debug("Setting manifest subject for manifest %s", manifest_row.id)
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manifest_bytes = Bytes.for_string_or_unicode(manifest_row.manifest_bytes)
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try:
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parsed = parse_manifest_from_bytes(
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manifest_bytes, manifest_row.media_type.name, validate=False
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)
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subject = parsed.subject
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except ManifestException as me:
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logger.warning(
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"Got exception when trying to parse manifest %s: %s", manifest_row.id, me
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)
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updated = (
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Manifest.update(
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subject=subject,
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subject_backfilled=True,
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)
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.where(Manifest.id == manifest_row.id, Manifest.subject_backfilled == False)
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.execute()
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)
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if updated != 1:
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logger.debug("Another worker preempted this worker")
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abt.set()
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continue
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return True
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def create_gunicorn_worker():
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"""
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follows the gunicorn application factory pattern, enabling
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a quay worker to run as a gunicorn worker thread.
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this is useful when utilizing gunicorn's hot reload in local dev.
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utilizing this method will enforce a 1:1 quay worker to gunicorn worker ratio.
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"""
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worker = GunicornWorker(
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__name__, app, ManifestSubjectBackfillWorker(), features.MANIFEST_SUBJECT_BACKFILL
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)
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return worker
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def main():
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logging.config.fileConfig(logfile_path(debug=False), disable_existing_loggers=False)
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if app.config.get("ACCOUNT_RECOVERY_MODE", False):
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logger.debug("Quay running in account recovery mode")
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while True:
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time.sleep(100000)
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if not features.MANIFEST_SUBJECT_BACKFILL:
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logger.debug("Manifest backfill worker not enabled; skipping")
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while True:
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time.sleep(100000)
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worker = ManifestSubjectBackfillWorker()
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worker.start()
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if __name__ == "__main__":
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main()
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