Viewing file:  azure.py (2.72 KB) -rw-r--r--
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import logging
import os
from typing import Any, Dict
from uaclient import exceptions, http, 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":
responses[key] = response.json_dict["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
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