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How to use get_change_config method in localstack

Best Python code snippet using localstack_python

template_deployer.py

Source:template_deployer.py

...1124                resource["PhysicalResourceId"] = physical_id1125        # set resource status1126        stack.set_resource_status(resource_id, "%s_COMPLETE" % action, physical_res_id=physical_id)1127        return physical_id1128    def get_change_config(self, action, resource, change_set_id=None):1129        return {1130            "Type": "Resource",1131            "ResourceChange": {1132                "Action": action,1133                "LogicalResourceId": resource.get("LogicalResourceId"),1134                "PhysicalResourceId": resource.get("PhysicalResourceId"),1135                "ResourceType": resource.get("Type"),1136                "Replacement": "False",1137                "ChangeSetId": change_set_id,1138            },1139        }1140    def resource_config_differs(self, resource_new):1141        """Return whether the given resource properties differ from the existing config (for stack updates)."""1142        resource_id = resource_new["LogicalResourceId"]1143        resource_old = self.resources[resource_id]1144        props_old = resource_old["Properties"]1145        props_new = resource_new["Properties"]1146        ignored_keys = ["LogicalResourceId", "PhysicalResourceId"]1147        old_keys = set(props_old.keys()) - set(ignored_keys)1148        new_keys = set(props_new.keys()) - set(ignored_keys)1149        if old_keys != new_keys:1150            return True1151        for key in old_keys:1152            if props_old[key] != props_new[key]:1153                return True1154        old_status = self.stack.resource_states.get(resource_id) or {}1155        previous_state = (1156            old_status.get("PreviousResourceStatus") or old_status.get("ResourceStatus") or ""1157        )1158        if old_status and "DELETE" in previous_state:1159            return True1160    def merge_properties(self, resource_id, old_stack, new_stack):1161        old_resources = old_stack.template["Resources"]1162        new_resources = new_stack.template["Resources"]1163        new_resource = new_resources[resource_id]1164        old_resource = old_resources[resource_id] = old_resources.get(resource_id) or {}1165        for key, value in new_resource.items():1166            if key == "Properties":1167                continue1168            old_resource[key] = old_resource.get(key, value)1169        old_res_props = old_resource["Properties"] = old_resource.get("Properties", {})1170        for key, value in new_resource["Properties"].items():1171            old_res_props[key] = value1172        # overwrite original template entirely1173        old_stack.template_original["Resources"][resource_id] = new_stack.template_original[1174            "Resources"1175        ][resource_id]1176    def resolve_param(1177        self, logical_id: str, param_type: str, default_value: Optional[str] = None1178    ) -> Optional[str]:1179        if param_type == "AWS::SSM::Parameter::Value<String>":1180            ssm_client = aws_stack.connect_to_service("ssm")1181            param = ssm_client.get_parameter(Name=default_value)1182            return param["Parameter"]["Value"]1183        return None1184    def apply_parameter_changes(self, old_stack, new_stack) -> None:1185        parameters = {1186            p["ParameterKey"]: p1187            for p in old_stack.metadata["Parameters"]  # go through current parameter values1188        }1189        for logical_id, value in new_stack.template["Parameters"].items():1190            default = value.get("Default")1191            provided_param_value = parameters.get(logical_id)1192            param = {1193                "ParameterKey": logical_id,1194                "ParameterValue": provided_param_value if default is None else default,1195            }1196            if default is not None:1197                resolved_value = self.resolve_param(logical_id, value.get("Type"), default)1198                if resolved_value is not None:1199                    param["ResolvedValue"] = resolved_value1200            parameters[logical_id] = param1201        parameters.update({p["ParameterKey"]: p for p in new_stack.metadata["Parameters"]})1202        for change_set in new_stack.change_sets:1203            parameters.update({p["ParameterKey"]: p for p in change_set.metadata["Parameters"]})1204        # TODO: unclear/undocumented behavior in implicitly updating old_stack parameter here1205        old_stack.metadata["Parameters"] = [v for v in parameters.values() if v]1206    # TODO: fix circular import with cloudformation_api.py when importing Stack here1207    def construct_changes(1208        self,1209        existing_stack,1210        new_stack,1211        initialize=False,1212        change_set_id=None,1213        append_to_changeset=False,1214    ):1215        from localstack.services.cloudformation.cloudformation_api import StackChangeSet1216        old_resources = existing_stack.template["Resources"]1217        new_resources = new_stack.template["Resources"]1218        deletes = [val for key, val in old_resources.items() if key not in new_resources]1219        adds = [val for key, val in new_resources.items() if initialize or key not in old_resources]1220        modifies = [val for key, val in new_resources.items() if key in old_resources]1221        changes = []1222        for action, items in (("Remove", deletes), ("Add", adds), ("Modify", modifies)):1223            for item in items:1224                item["Properties"] = item.get("Properties", {})1225                change = self.get_change_config(action, item, change_set_id=change_set_id)1226                changes.append(change)1227        # append changes to change set1228        if append_to_changeset and isinstance(new_stack, StackChangeSet):1229            new_stack.changes.extend(changes)1230        return changes1231    def apply_changes(1232        self,1233        existing_stack,1234        new_stack,1235        stack_name,1236        change_set_id=None,1237        initialize=False,1238        action=None,1239    ):...

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