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Edit File: azure.py
import logging import os from typing import Any, Dict from uaclient import exceptions, http, secret_manager, system, util from uaclient.clouds import AutoAttachCloudInstance LOG = logging.getLogger(util.replace_top_level_logger_name(__name__)) IMDS_BASE_URL = "http://169.254.169.254/metadata/" API_VERSION = "2020-09-01" # Needed to get subscription ID in attested data IMDS_URLS = { "pkcs7": IMDS_BASE_URL + "attested/document?api-version=" + API_VERSION, "compute": IMDS_BASE_URL + "instance/compute?api-version=" + API_VERSION, } DMI_CHASSIS_ASSET_TAG = "/sys/class/dmi/id/chassis_asset_tag" AZURE_OVF_ENV_FILE = "/var/lib/cloud/seed/azure/ovf-env.xml" AZURE_CHASSIS_ASSET_TAG = "7783-7084-3265-9085-8269-3286-77" AZURE_PRO_LICENSE_TYPE = "UBUNTU_PRO" class UAAutoAttachAzureInstance(AutoAttachCloudInstance): # mypy does not handle @property around inner decorators # https://github.com/python/mypy/issues/1362 @property # type: ignore @util.retry(exceptions.CloudMetadataError, retry_sleeps=[1, 1, 1]) def identity_doc(self) -> Dict[str, Any]: responses = {} for key, url in sorted(IMDS_URLS.items()): response = http.readurl( url, headers={"Metadata": "true"}, timeout=1 ) if response.code != 200: raise exceptions.CloudMetadataError( code=response.code, body=response.body ) if key == "pkcs7": signature = response.json_dict["signature"] responses[key] = signature secret_manager.secrets.add_secret(signature) else: responses[key] = response.json_dict return responses @property def cloud_type(self) -> str: return "azure" @property def is_viable(self) -> bool: """This machine is a viable AzureInstance""" if os.path.exists(DMI_CHASSIS_ASSET_TAG): chassis_asset_tag = system.load_file(DMI_CHASSIS_ASSET_TAG) if AZURE_CHASSIS_ASSET_TAG == chassis_asset_tag.strip(): return True return os.path.exists(AZURE_OVF_ENV_FILE) def should_poll_for_pro_license(self) -> bool: # Azure will make sure it is on all supported versions return True def is_pro_license_present(self, *, wait_for_change: bool) -> bool: if wait_for_change: raise exceptions.CancelProLicensePolling() url = IMDS_URLS.get("compute", "") try: response = http.readurl(url, headers={"Metadata": "true"}) except OSError as e: LOG.error(e) raise exceptions.CancelProLicensePolling() if response.code != 200: LOG.error(response.body) raise exceptions.CancelProLicensePolling() return response.json_dict.get("licenseType") == AZURE_PRO_LICENSE_TYPE