Add AzureStorageProvider config options

backend/open_webui/config.py

@@ -668,6 +668,10 @@ GOOGLE_APPLICATION_CREDENTIALS_JSON = os.environ.get(
     "GOOGLE_APPLICATION_CREDENTIALS_JSON", None
 )
 
+AZURE_STORAGE_ENDPOINT = os.environ.get("AZURE_STORAGE_ENDPOINT", None)
+AZURE_STORAGE_CONTAINER_NAME = os.environ.get("AZURE_STORAGE_CONTAINER_NAME", "open-webui")
+AZURE_STORAGE_KEY = os.environ.get("AZURE_STORAGE_KEY", None)
+
 ####################################
 # File Upload DIR
 ####################################