Added lib-secret-manager which consumes secrets after application launch

Reviewed-on: #7
Co-authored-by: florian <flo@meergans.org>
Co-committed-by: florian <flo@meergans.org>

src/main.py

@@ -5,7 +5,8 @@ from starlette.exceptions import HTTPException as StarletteHTTPException
 from typing import Optional,List
 from pydantic import BaseModel
 from validator import is_valid_platform,is_valid_token,verify_api_key
-from secret_handler import encrypt_token
+from secret_manager.fernet_encryption import encrypt_token
+from secret_manager import cleanup_secret_files
 from db import get_db, create_connection_pool, close_connection_pool, start_healthcheck_thread
 from simple_logger_handler import setup_logger, LOG_LEVEL
 import uuid
@@ -44,6 +45,14 @@ async def lifespan(app: FastAPI):
 
 	start_healthcheck_thread()
 	logger.info("MySQL healthcheck thread started.")
+
+	SECRET_PATHS = frozenset({
+		"/etc/secrets/encryption_key",
+		"/etc/secrets/db_username",
+		"/etc/secrets/db_password"
+	})
+	cleanup_secret_files(SECRET_PATHS)
+
 	yield
 	logger.info("Closing MySQL connection pool...")
 	close_connection_pool()