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Edit File: alloy.py
# coding: utf-8 # Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved. # This software is dual-licensed to you under the Universal Permissive License (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl or Apache License 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose either license. from __future__ import absolute_import import re import os import logging import json import oci.regions import oci.regions_definitions from oci.exceptions import InvalidAlloyConfig OCI_ALLOY_FILE_PATH_ENV_VAR_NAME = "OCI_ALLOY_CONFIG_FILE_PATH" ALLOY_CONFIG_FILE_PATH = os.path.join('~', '.oci', 'alloy-config.json') ALLOY_CONFIG_SERVICE_KEY_NAME = "services" ALLOY_CONFIG_REGIONS_KEY_NAME = "regions" ALLOY_CONFIG_PROVIDER_KEY_NAME = "alloyProvider" ALLOY_CONFIG_REGION_COEXIST_KEY_NAME = "ociRegionCoexist" ALLOY_CONFIG_SCHEMA_REQUIRED_KEYS = (ALLOY_CONFIG_SERVICE_KEY_NAME, ALLOY_CONFIG_REGIONS_KEY_NAME) ALLOY_CONFIG_SCHEMA_OPTIONAL_KEYS = (ALLOY_CONFIG_REGION_COEXIST_KEY_NAME, ALLOY_CONFIG_PROVIDER_KEY_NAME) logger = logging.getLogger(__name__) def _enable_alloy_mode(): if not oci.regions._IS_ALLOY_MODE: logger.debug("Alloy mode detected") oci.regions._IS_ALLOY_MODE = True # Class to define the behavior of the set containing services enabled by the alloy provider class OciSdkEnabledServicesSet(object): def __init__(self): self._enabled_services_set = set() self._cleared_set_for_user_override = False def _clean_up_service_name_string(self, service_name): # By default, the OCI Python SDK uses underscores in the module name for services, however, the service names in # OCI_SDK_ENABLED_SERVICES_SET are expected without underscores, in lower case return re.sub('[^a-z]+', '', service_name.lower()) def add(self, service_name, override_by_user=True): if not self._cleared_set_for_user_override and override_by_user: logger.warning("WARNING: Clearing OCI_SDK_ENABLED_SERVICES_SET to allow user override through code") self.clear() # Set _cleared_set_for_user_override to true, to clear the set only once self._cleared_set_for_user_override = True clean_service_name_string = self._clean_up_service_name_string(service_name) self._enabled_services_set.add(clean_service_name_string) def isempty(self): return len(self._enabled_services_set) == 0 def clear(self): self._enabled_services_set.clear() def is_service_enabled(self, service_name): # If OCI_SDK_ENABLED_SERVICES_SET is empty, all the services are enabled if self.isempty(): return True clean_service_name_string = self._clean_up_service_name_string(service_name) return clean_service_name_string in self._enabled_services_set OCI_SDK_ENABLED_SERVICES_SET = OciSdkEnabledServicesSet() def _validate_alloy_config_schema(alloy_config_json_object): for key in ALLOY_CONFIG_SCHEMA_REQUIRED_KEYS: if key not in alloy_config_json_object: logger.debug("Key {} not found in alloy config".format(key)) raise InvalidAlloyConfig("Alloy config is invalid. Missing required key {}".format(key)) for key in ALLOY_CONFIG_SCHEMA_OPTIONAL_KEYS: if key in alloy_config_json_object and key is ALLOY_CONFIG_REGION_COEXIST_KEY_NAME: if not isinstance(alloy_config_json_object[key], (bool, str)): raise InvalidAlloyConfig("{} must be either bool or str".format(ALLOY_CONFIG_REGION_COEXIST_KEY_NAME)) if isinstance(alloy_config_json_object[key], str) and alloy_config_json_object[key].lower() not in ("true", "false"): raise InvalidAlloyConfig("Allowed values for {} are either true or false".format(ALLOY_CONFIG_REGION_COEXIST_KEY_NAME)) return True def _add_services_from_alloy_config(alloy_config_services_list): if alloy_config_services_list: for service in alloy_config_services_list: OCI_SDK_ENABLED_SERVICES_SET.add(service, override_by_user=False) def _set_alloy_config_from_file(): """ Looks for alloy-config.json and parses enabled services and regions information from it Default location is ~/.oci/alloy-config.json Default location can be overridden by setting environment variable OCI_ALLOY_CONFIG_FILE_PATH """ if os.getenv(OCI_ALLOY_FILE_PATH_ENV_VAR_NAME): config_file_location = os.getenv(OCI_ALLOY_FILE_PATH_ENV_VAR_NAME) logger.debug("Overriding default path for alloy-config.json to {}".format(OCI_ALLOY_FILE_PATH_ENV_VAR_NAME)) else: config_file_location = ALLOY_CONFIG_FILE_PATH expanded_file_location = os.path.expanduser(config_file_location) if os.path.isfile(expanded_file_location): _enable_alloy_mode() logger.debug("Alloy configuration file found at location {}".format(expanded_file_location)) try: with open(expanded_file_location, 'r') as alloy_config_file: alloy_config_raw_file_content = alloy_config_file.read() except (OSError, IOError) as e: logger.debug("Reading alloy configuration file failed because of error: {}".format(e)) raise e try: alloy_config_json_object = json.loads(alloy_config_raw_file_content) except json.JSONDecodeError as e: # Unable to parse the json array logger.debug("Decoding JSON array from alloy configuration file failed because of error: {}".format(e)) raise e if _validate_alloy_config_schema(alloy_config_json_object): # Extract enabled services and regions from alloy_config_json_object _add_services_from_alloy_config(alloy_config_json_object[ALLOY_CONFIG_SERVICE_KEY_NAME]) oci.regions._IS_ALLOY_REGION_COEXIST = alloy_config_json_object.get(ALLOY_CONFIG_REGION_COEXIST_KEY_NAME, False) oci.regions._process_region_metadata_from_alloy_config(alloy_config_json_object[ALLOY_CONFIG_REGIONS_KEY_NAME]) oci.regions.ALLOY_PROVIDER_NAME = alloy_config_json_object.get(ALLOY_CONFIG_PROVIDER_KEY_NAME, False) def _configure_alloy_mode(): """ Determines if alloy specific inputs are provided and configures the SDK for alloy mode Alloy mode is enabled if alloy-config.json file is found """ # Read all the sources to determine alloy mode _set_alloy_config_from_file() _configure_alloy_mode()
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