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Directory : /snap/core20/2682/lib/python3/dist-packages/cloudinit/sources/

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Current File : /snap/core20/2682/lib/python3/dist-packages/cloudinit/sources/DataSourceAliYun.py

# This file is part of cloud-init. See LICENSE file for license information.

import copy
import logging
from typing import List

from cloudinit import dmi, sources
from cloudinit.event import EventScope, EventType
from cloudinit.sources import DataSourceEc2 as EC2
from cloudinit.sources import DataSourceHostname, NicOrder

LOG = logging.getLogger(__name__)

ALIYUN_PRODUCT = "Alibaba Cloud ECS"


class DataSourceAliYun(EC2.DataSourceEc2):

    dsname = "AliYun"
    metadata_urls = ["http://100.100.100.200"]

    # The minimum supported metadata_version from the ec2 metadata apis
    min_metadata_version = "2016-01-01"
    extended_metadata_versions: List[str] = []

    # Aliyun metadata server security enhanced mode overwrite
    @property
    def imdsv2_token_put_header(self):
        return "X-aliyun-ecs-metadata-token"

    def __init__(self, sys_cfg, distro, paths):
        super(DataSourceAliYun, self).__init__(sys_cfg, distro, paths)
        self.default_update_events = copy.deepcopy(self.default_update_events)
        self.default_update_events[EventScope.NETWORK].add(EventType.BOOT)
        self._fallback_nic_order = NicOrder.NIC_NAME

    def _unpickle(self, ci_pkl_version: int) -> None:
        super()._unpickle(ci_pkl_version)
        self._fallback_nic_order = NicOrder.NIC_NAME

    def get_hostname(self, fqdn=False, resolve_ip=False, metadata_only=False):
        hostname = self.metadata.get("hostname")
        is_default = False
        if hostname is None:
            hostname = "localhost.localdomain"
            is_default = True
        return DataSourceHostname(hostname, is_default)

    def get_public_ssh_keys(self):
        return parse_public_keys(self.metadata.get("public-keys", {}))

    def _get_cloud_name(self):
        if _is_aliyun():
            return EC2.CloudNames.ALIYUN
        else:
            return EC2.CloudNames.NO_EC2_METADATA


def _is_aliyun():
    return dmi.read_dmi_data("system-product-name") == ALIYUN_PRODUCT


def parse_public_keys(public_keys):
    keys = []
    for _key_id, key_body in public_keys.items():
        if isinstance(key_body, str):
            keys.append(key_body.strip())
        elif isinstance(key_body, list):
            keys.extend(key_body)
        elif isinstance(key_body, dict):
            key = key_body.get("openssh-key", [])
            if isinstance(key, str):
                keys.append(key.strip())
            elif isinstance(key, list):
                keys.extend(key)
    return keys


class DataSourceAliYunLocal(DataSourceAliYun):
    """Datasource run at init-local which sets up network to query metadata.

    In init-local, no network is available. This subclass sets up minimal
    networking with dhclient on a viable nic so that it can talk to the
    metadata service. If the metadata service provides network configuration
    then render the network configuration for that instance based on metadata.
    """

    perform_dhcp_setup = True


# Used to match classes to dependencies
datasources = [
    (DataSourceAliYunLocal, (sources.DEP_FILESYSTEM,)),  # Run at init-local
    (DataSourceAliYun, (sources.DEP_FILESYSTEM, sources.DEP_NETWORK)),
]


# Return a list of data sources that match this set of dependencies
def get_datasource_list(depends):
    return sources.list_from_depends(depends, datasources)

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