124 lines
3.8 KiB
Python
124 lines
3.8 KiB
Python
# standard imports
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import argparse
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import logging
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import os
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import tempfile
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# third party imports
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import celery
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import redis
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from confini import Config
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# local imports
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from cic_ussd.db import dsn_from_config
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from cic_ussd.db.models.base import SessionBase
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from cic_ussd.metadata.signer import Signer
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from cic_ussd.metadata.user import UserMetadata
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from cic_ussd.redis import InMemoryStore
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from cic_ussd.session.ussd_session import UssdSession as InMemoryUssdSession
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logging.basicConfig(level=logging.WARNING)
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logg = logging.getLogger()
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config_directory = '/usr/local/etc/cic-ussd/'
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# define arguments
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arg_parser = argparse.ArgumentParser()
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arg_parser.add_argument('-c', type=str, default=config_directory, help='config directory.')
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arg_parser.add_argument('-q', type=str, default='cic-ussd', help='queue name for worker tasks')
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arg_parser.add_argument('-v', action='store_true', help='be verbose')
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arg_parser.add_argument('-vv', action='store_true', help='be more verbose')
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arg_parser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
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args = arg_parser.parse_args()
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# parse config
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config = Config(config_dir=args.c, env_prefix=args.env_prefix)
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config.process()
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config.censor('PASSWORD', 'DATABASE')
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# define log levels
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if args.vv:
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logging.getLogger().setLevel(logging.DEBUG)
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elif args.v:
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logging.getLogger().setLevel(logging.INFO)
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logg.debug(config)
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# connect to database
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data_source_name = dsn_from_config(config)
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SessionBase.connect(data_source_name=data_source_name)
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# verify database connection with minimal sanity query
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session = SessionBase.create_session()
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session.execute('SELECT version_num FROM alembic_version')
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session.close()
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# define universal redis cache access
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InMemoryStore.cache = redis.StrictRedis(host=config.get('REDIS_HOSTNAME'),
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port=config.get('REDIS_PORT'),
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password=config.get('REDIS_PASSWORD'),
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db=config.get('REDIS_DATABASE'),
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decode_responses=True)
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InMemoryUssdSession.redis_cache = InMemoryStore.cache
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# define metadata URL
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UserMetadata.base_url = config.get('CIC_META_URL')
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# define signer values
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Signer.gpg_path = config.get('PGP_EXPORT_DIR')
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Signer.gpg_passphrase = config.get('PGP_PASSPHRASE')
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Signer.key_file_path = f"{config.get('PGP_KEYS_PATH')}{config.get('PGP_PRIVATE_KEYS')}"
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# set up celery
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current_app = celery.Celery(__name__)
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# define celery configs
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broker = config.get('CELERY_BROKER_URL')
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if broker[:4] == 'file':
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broker_queue = tempfile.mkdtemp()
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broker_processed = tempfile.mkdtemp()
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current_app.conf.update({
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'broker_url': broker,
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'broker_transport_options': {
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'data_folder_in': broker_queue,
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'data_folder_out': broker_queue,
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'data_folder_processed': broker_processed
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},
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})
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logg.warning(
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f'celery broker dirs queue i/o {broker_queue} processed {broker_processed}, will NOT be deleted on shutdown')
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else:
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current_app.conf.update({
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'broker_url': broker
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})
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result = config.get('CELERY_RESULT_URL')
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if result[:4] == 'file':
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result_queue = tempfile.mkdtemp()
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current_app.conf.update({
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'result_backend': 'file://{}'.format(result_queue),
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})
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logg.warning('celery backend store dir {} created, will NOT be deleted on shutdown'.format(result_queue))
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else:
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current_app.conf.update({
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'result_backend': result,
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})
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import cic_ussd.tasks
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def main():
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argv = ['worker']
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if args.vv:
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argv.append('--loglevel=DEBUG')
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elif args.v:
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argv.append('--loglevel=INFO')
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argv.append('-Q')
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argv.append(args.q)
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current_app.worker_main(argv)
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if __name__ == '__main__':
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main()
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