ssl_ca_certs should default to None, not "". (#2560)

backend/danswer/configs/app_configs.py

@@ -167,7 +167,7 @@ REDIS_DB_NUMBER_CELERY = int(os.environ.get("REDIS_DB_NUMBER_CELERY", 15))  # br
 # https://docs.celeryq.dev/en/stable/userguide/configuration.html#redis-backend-settings
 # should be one of "required", "optional", or "none"
 REDIS_SSL_CERT_REQS = os.getenv("REDIS_SSL_CERT_REQS", "none")
-REDIS_SSL_CA_CERTS = os.getenv("REDIS_SSL_CA_CERTS", "")
+REDIS_SSL_CA_CERTS = os.getenv("REDIS_SSL_CA_CERTS", None)
 
 CELERY_RESULT_EXPIRES = int(os.environ.get("CELERY_RESULT_EXPIRES", 86400))  # seconds
 

backend/danswer/redis/redis_pool.py

@@ -42,7 +42,7 @@ class RedisPool:
         db: int = REDIS_DB_NUMBER,
         password: str = REDIS_PASSWORD,
         max_connections: int = REDIS_POOL_MAX_CONNECTIONS,
-        ssl_ca_certs: str = REDIS_SSL_CA_CERTS,
+        ssl_ca_certs: str | None = REDIS_SSL_CA_CERTS,
         ssl_cert_reqs: str = REDIS_SSL_CERT_REQS,
         ssl: bool = False,
     ) -> redis.ConnectionPool: