Files
full-stack-fastapi-postgresql/{{cookiecutter.project_slug}}/backend/app/app/celeryworker_pre_start.py
2019-02-23 18:44:29 +04:00

33 lines
693 B
Python

import logging
from tenacity import after_log, before_log, retry, stop_after_attempt, wait_fixed
from app.db.session import db_session
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
max_tries = 60 * 5 # 5 minutes
wait_seconds = 1
@retry(
stop=stop_after_attempt(max_tries),
wait=wait_fixed(wait_seconds),
before=before_log(logger, logging.INFO),
after=after_log(logger, logging.WARN),
)
def init():
# Try to create session to check if DB is awake
db_session.execute("SELECT 1")
def main():
logger.info("Initializing service")
init()
logger.info("Service finished initializing")
if __name__ == "__main__":
main()