chore: validate early

Signed-off-by: Aaron Pham <29749331+aarnphm@users.noreply.github.com>

bentoml/_internal/configuration/containers.py

@@ -225,6 +225,14 @@ def __init__(
         )
         with open(default_config_file, "rb") as f:
             self.config: t.Dict[str, t.Any] = yaml.safe_load(f)
+        if validate_schema:
+            try:
+                SCHEMA.validate(self.config)
+            except SchemaError as e:
+                raise BentoMLConfigException(
+                    "Default configuration 'default_configuration.yml' does not"
+                    " conform to the required schema."
+                ) from e
 
         # User override configuration
         if override_config_file is not None: