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: /lib/python3/dist-packages/uaclient/clouds/ [ drwxr-xr-x ]
name : identity.py import logging from enum import Enum from typing import Dict, Optional, Tuple, Type # noqa: F401 from uaclient import clouds, exceptions, status, util from uaclient.config import apply_config_settings_override # Mapping of datasource names to cloud-id responses. Trusty compat with Xenial+ DATASOURCE_TO_CLOUD_ID = {"azurenet": "azure", "ec2": "aws", "gce": "gcp"} CLOUD_TYPE_TO_TITLE = { "aws": "AWS", "aws-china": "AWS China", "aws-gov": "AWS Gov", "azure": "Azure", "gcp": "GCP", } PRO_CLOUDS = ["aws", "azure", "gcp"] class NoCloudTypeReason(Enum): NO_CLOUD_DETECTED = 0 CLOUD_ID_ERROR = 1 def get_instance_id() -> Optional[str]: """Query cloud instance-id from cmdline.""" try: # Present in cloud-init on >= Xenial out, _err = util.subp(["cloud-init", "query", "instance_id"]) return out.strip() except util.ProcessExecutionError: pass logging.warning("Unable to determine current instance-id") return None @apply_config_settings_override("cloud_type") def get_cloud_type() -> Tuple[Optional[str], Optional[NoCloudTypeReason]]: if util.which("cloud-id"): # Present in cloud-init on >= Xenial try: out, _err = util.subp(["cloud-id"]) return (out.strip(), None) except util.ProcessExecutionError: return (None, NoCloudTypeReason.CLOUD_ID_ERROR) # If no cloud-id command, assume not on cloud return (None, NoCloudTypeReason.NO_CLOUD_DETECTED) def cloud_instance_factory() -> clouds.AutoAttachCloudInstance: from uaclient.clouds import aws, azure, gcp cloud_instance_map = { "aws": aws.UAAutoAttachAWSInstance, "aws-china": aws.UAAutoAttachAWSInstance, "aws-gov": aws.UAAutoAttachAWSInstance, "azure": azure.UAAutoAttachAzureInstance, "gce": gcp.UAAutoAttachGCPInstance, } # type: Dict[str, Type[clouds.AutoAttachCloudInstance]] cloud_type, _ = get_cloud_type() if not cloud_type: raise exceptions.UserFacingError( status.MESSAGE_UNABLE_TO_DETERMINE_CLOUD_TYPE ) cls = cloud_instance_map.get(cloud_type) if not cls: raise exceptions.NonAutoAttachImageError( status.MESSAGE_UNSUPPORTED_AUTO_ATTACH_CLOUD_TYPE.format( cloud_type=cloud_type ) ) instance = cls() if not instance.is_viable: raise exceptions.UserFacingError( status.MESSAGE_UNSUPPORTED_AUTO_ATTACH ) return instance