Доделал до рабочего концепта

app/utils/uploader.py

@@ -4,6 +4,8 @@ from abc import ABC, abstractmethod
 import boto3
 from botocore.client import Config
 
+from app.core.config import settings
+
 
 class ChunkUploadBackend(ABC):
     @abstractmethod
@@ -49,20 +51,16 @@ class DiskChunkUploadBackend(ChunkUploadBackend):
 
 class S3ChunkUploadBackend(ChunkUploadBackend):
     def __init__(self, key_prefix: str = ""):
-        from dotenv import load_dotenv
-
-        load_dotenv(".env")
-
         self.s3 = boto3.client(
             service_name="s3",
-            aws_access_key_id=os.getenv("S3_ACCESS_KEY"),
-            aws_secret_access_key=os.getenv("S3_SECRET_KEY"),
-            endpoint_url=os.getenv("S3_ENDPOINT_URL"),
-            region_name=os.getenv("S3_REGION_NAME"),
+            aws_access_key_id=settings.S3_ACCESS_KEY,
+            aws_secret_access_key=settings.S3_SECRET_KEY,
+            endpoint_url=settings.S3_ENDPOINT_URL,
+            region_name=settings.S3_REGION_NAME,
             use_ssl=True,
-            config=Config(signature_version=os.getenv("S3_SIGNATURE_VERSION")),
+            config=Config(signature_version=settings.S3_SIGNATURE_VERSION),
         )
-        self.bucket = os.getenv("S3_BUCKET_NAME")
+        self.bucket = settings.S3_BUCKET_NAME
         self.key_prefix = key_prefix
         self.upload_id = None
         self.parts = []