Replace completeley instance types data when loading config

With this commit we replace completely instance types data rather than just update it to make sure data is consistent with the currently loaded configuration.

Additionally we mark instance_types_data parameter's update policy as UNSUPPORTED to avoid changes that may break clusters with sge or torque.

Signed-off-by: ddeidda <[email protected]>

Author: ddeidda

cli/src/pcluster/config/mappings.py

@@ -1032,7 +1032,7 @@
         "type": JsonCfnParam,
         "default": {},
         "cfn_param_mapping": "InstanceTypesData",
-        "update_policy": UpdatePolicy.IGNORED
+        "update_policy": UpdatePolicy.UNSUPPORTED
     }),
 ]
 

cli/src/pcluster/utils.py

@@ -1258,7 +1258,7 @@ def __init__(self, instance_type_data):
     @staticmethod
     def load_additional_instance_types_data(instance_types_data):
         """Load additional data to describe instance types."""
-        InstanceTypeInfo.__additional_instance_types_data.update(instance_types_data)
+        InstanceTypeInfo.__additional_instance_types_data = instance_types_data if instance_types_data else {}
 
     @staticmethod
     def clear_additional_instance_types_data():
@@ -1353,7 +1353,7 @@ def is_efa_supported(self):
 
     def supported_usage_classes(self):
         """Return the list supported usage classes."""
-        supported_classes = self.instance_type_data.get("SupportedUsageClasses", [])
+        supported_classes = list(self.instance_type_data.get("SupportedUsageClasses", []))
         if "on-demand" in supported_classes:
             # Replace official AWS with internal naming convention
             supported_classes.remove("on-demand")