create docker image from user script + websocket-pubsub

fastapi + websocket + pub/sub redis

Create the requirements.txt file: pip freeze > requirements.txt

Run server: uvicorn app.main:app --port 9000
Run server in dev mode: uvicorn app.main:app --port 9000 --reload

redis_client = redis.Redis(host='localhost', port=6379, db=5)

move redis conf to envs