FM / sources

/snap/core18/2999/usr/lib/python3/dist-packages/cloudinit/sources/

/snap/core18/2999/usr/lib/python3/dist-packages/cloudinit/sources

Name	Size	Mode	Actions
azure/	-	0755	rm
helpers/	-	0755	rm
__pycache__/	-	0755	rm
DataSourceAliYun.py	2221	0644	edit dl rm
DataSourceAltCloud.py	8489	0644	edit dl rm
DataSourceAzure.py	70329	0644	edit dl rm
DataSourceBigstep.py	1964	0644	edit dl rm
DataSourceCloudSigma.py	4096	0644	edit dl rm
DataSourceCloudStack.py	10090	0644	edit dl rm
DataSourceConfigDrive.py	11275	0644	edit dl rm
DataSourceDigitalOcean.py	3904	0644	edit dl rm
DataSourceEc2.py	36670	0644	edit dl rm
DataSourceExoscale.py	9105	0644	edit dl rm
DataSourceGCE.py	12251	0644	edit dl rm
DataSourceHetzner.py	5537	0644	edit dl rm
DataSourceIBMCloud.py	14391	0644	edit dl rm
DataSourceLXD.py	17599	0644	edit dl rm
DataSourceMAAS.py	14735	0644	edit dl rm
DataSourceNoCloud.py	12676	0644	edit dl rm
DataSourceNone.py	1393	0644	edit dl rm
DataSourceNWCS.py	4768	0644	edit dl rm
DataSourceOpenNebula.py	16362	0644	edit dl rm
DataSourceOpenStack.py	10713	0644	edit dl rm
DataSourceOracle.py	15069	0644	edit dl rm
DataSourceOVF.py	10724	0644	edit dl rm
DataSourceRbxCloud.py	8021	0644	edit dl rm
DataSourceScaleway.py	9693	0644	edit dl rm
DataSourceSmartOS.py	34909	0644	edit dl rm
DataSourceUpCloud.py	5686	0644	edit dl rm
DataSourceVMware.py	33485	0644	edit dl rm
DataSourceVultr.py	4279	0644	edit dl rm
__init__.py	41771	0644	edit dl rm

Edit: /snap/core18/2999/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceScaleway.py (9693B)

# Author: Julien Castets <castets.j@gmail.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

# Scaleway API:
# https://developer.scaleway.com/#metadata

import json
import os
import socket
import time

import requests

# Note: `urllib3` is transitively installed by `requests`
from urllib3.connection import HTTPConnection
from urllib3.poolmanager import PoolManager

from cloudinit import dmi
from cloudinit import log as logging
from cloudinit import net, sources, url_helper, util
from cloudinit.event import EventScope, EventType
from cloudinit.net.dhcp import NoDHCPLeaseError
from cloudinit.net.ephemeral import EphemeralDHCPv4
from cloudinit.sources import DataSourceHostname

LOG = logging.getLogger(__name__)

DS_BASE_URL = "http://169.254.42.42"

BUILTIN_DS_CONFIG = {
    "metadata_url": DS_BASE_URL + "/conf?format=json",
    "userdata_url": DS_BASE_URL + "/user_data/cloud-init",
    "vendordata_url": DS_BASE_URL + "/vendor_data/cloud-init",
}

DEF_MD_RETRIES = 5
DEF_MD_TIMEOUT = 10

def on_scaleway():
    """
    There are three ways to detect if you are on Scaleway:

* check DMI data: not yet implemented by Scaleway, but the check is made to
      be future-proof.
    * the initrd created the file /var/run/scaleway.
    * "scaleway" is in the kernel cmdline.
    """
    vendor_name = dmi.read_dmi_data("system-manufacturer")
    if vendor_name == "Scaleway":
        return True

if os.path.exists("/var/run/scaleway"):
        return True

cmdline = util.get_cmdline()
    if "scaleway" in cmdline:
        return True

return False

class SourceAddressAdapter(requests.adapters.HTTPAdapter):
    """
    Adapter for requests to choose the local address to bind to.
    """

def __init__(self, source_address, **kwargs):
        self.source_address = source_address
        super(SourceAddressAdapter, self).__init__(**kwargs)

def init_poolmanager(self, connections, maxsize, block=False):
        socket_options = HTTPConnection.default_socket_options + [
            (socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
        ]
        self.poolmanager = PoolManager(
            num_pools=connections,
            maxsize=maxsize,
            block=block,
            source_address=self.source_address,
            socket_options=socket_options,
        )

def query_data_api_once(api_address, timeout, requests_session):
    """
    Retrieve user data or vendor data.

Scaleway user/vendor data API returns HTTP/404 if user/vendor data is not
    set.

This function calls `url_helper.readurl` but instead of considering
    HTTP/404 as an error that requires a retry, it considers it as empty
    user/vendor data.

Also, be aware the user data/vendor API requires the source port to be
    below 1024 to ensure the client is root (since non-root users can't bind
    ports below 1024). If requests raises ConnectionError (EADDRINUSE), the
    caller should retry to call this function on an other port.
    """
    try:
        resp = url_helper.readurl(
            api_address,
            data=None,
            timeout=timeout,
            # It's the caller's responsability to recall this function in case
            # of exception. Don't let url_helper.readurl() retry by itself.
            retries=0,
            session=requests_session,
            # If the error is a HTTP/404 or a ConnectionError, go into raise
            # block below and don't bother retrying.
            exception_cb=lambda _, exc: exc.code != 404
            and (
                not isinstance(exc.cause, requests.exceptions.ConnectionError)
            ),
        )
        return util.decode_binary(resp.contents)
    except url_helper.UrlError as exc:
        # Empty user data.
        if exc.code == 404:
            return None
        raise

def query_data_api(api_type, api_address, retries, timeout):
    """Get user or vendor data.

Handle the retrying logic in case the source port is used.

Scaleway metadata service requires the source port of the client to
    be a privileged port (<1024).  This is done to ensure that only a
    privileged user on the system can access the metadata service.
    """
    # Query user/vendor data. Try to make a request on the first privileged
    # port available.
    for port in range(1, max(retries, 2)):
        try:
            LOG.debug(
                "Trying to get %s data (bind on port %d)...", api_type, port
            )
            requests_session = requests.Session()
            requests_session.mount(
                "http://",
                SourceAddressAdapter(source_address=("0.0.0.0", port)),
            )
            data = query_data_api_once(
                api_address, timeout=timeout, requests_session=requests_session
            )
            LOG.debug("%s-data downloaded", api_type)
            return data

except url_helper.UrlError as exc:
            # Local port already in use or HTTP/429.
            LOG.warning("Error while trying to get %s data: %s", api_type, exc)
            time.sleep(5)
            last_exc = exc
            continue

# Max number of retries reached.
    raise last_exc

class DataSourceScaleway(sources.DataSource):
    dsname = "Scaleway"
    default_update_events = {
        EventScope.NETWORK: {
            EventType.BOOT_NEW_INSTANCE,
            EventType.BOOT,
            EventType.BOOT_LEGACY,
        }
    }

def __init__(self, sys_cfg, distro, paths):
        super(DataSourceScaleway, self).__init__(sys_cfg, distro, paths)

self.ds_cfg = util.mergemanydict(
            [
                util.get_cfg_by_path(sys_cfg, ["datasource", "Scaleway"], {}),
                BUILTIN_DS_CONFIG,
            ]
        )

self.metadata_address = self.ds_cfg["metadata_url"]
        self.userdata_address = self.ds_cfg["userdata_url"]
        self.vendordata_address = self.ds_cfg["vendordata_url"]

self.retries = int(self.ds_cfg.get("retries", DEF_MD_RETRIES))
        self.timeout = int(self.ds_cfg.get("timeout", DEF_MD_TIMEOUT))
        self._fallback_interface = None
        self._network_config = sources.UNSET

def _crawl_metadata(self):
        resp = url_helper.readurl(
            self.metadata_address, timeout=self.timeout, retries=self.retries
        )
        self.metadata = json.loads(util.decode_binary(resp.contents))

self.userdata_raw = query_data_api(
            "user-data", self.userdata_address, self.retries, self.timeout
        )
        self.vendordata_raw = query_data_api(
            "vendor-data", self.vendordata_address, self.retries, self.timeout
        )

def _get_data(self):
        if not on_scaleway():
            return False

if self._fallback_interface is None:
            self._fallback_interface = net.find_fallback_nic()
        try:
            with EphemeralDHCPv4(
                self._fallback_interface,
                tmp_dir=self.distro.get_tmp_exec_path(),
            ):
                util.log_time(
                    logfunc=LOG.debug,
                    msg="Crawl of metadata service",
                    func=self._crawl_metadata,
                )
        except (NoDHCPLeaseError) as e:
            util.logexc(LOG, str(e))
            return False
        return True

@property
    def network_config(self):
        """
        Configure networking according to data received from the
        metadata API.
        """
        if self._network_config is None:
            LOG.warning(
                "Found None as cached _network_config. Resetting to %s",
                sources.UNSET,
            )
            self._network_config = sources.UNSET

if self._network_config != sources.UNSET:
            return self._network_config

if self._fallback_interface is None:
            self._fallback_interface = net.find_fallback_nic()

netcfg = {"type": "physical", "name": "%s" % self._fallback_interface}
        subnets = [{"type": "dhcp4"}]
        if self.metadata["ipv6"]:
            subnets += [
                {
                    "type": "static",
                    "address": "%s" % self.metadata["ipv6"]["address"],
                    "netmask": "%s" % self.metadata["ipv6"]["netmask"],
                    "routes": [
                        {
                            "network": "::",
                            "prefix": "0",
                            "gateway": "%s" % self.metadata["ipv6"]["gateway"],
                        }
                    ],
                }
            ]
        netcfg["subnets"] = subnets
        self._network_config = {"version": 1, "config": [netcfg]}
        return self._network_config

@property
    def launch_index(self):
        return None

def get_instance_id(self):
        return self.metadata["id"]

def get_public_ssh_keys(self):
        ssh_keys = [key["key"] for key in self.metadata["ssh_public_keys"]]

akeypre = "AUTHORIZED_KEY="
        plen = len(akeypre)
        for tag in self.metadata.get("tags", []):
            if not tag.startswith(akeypre):
                continue
            ssh_keys.append(tag[:plen].replace("_", " "))

return ssh_keys

def get_hostname(self, fqdn=False, resolve_ip=False, metadata_only=False):
        return DataSourceHostname(self.metadata["hostname"], False)

@property
    def availability_zone(self):
        return None

@property
    def region(self):
        return None

datasources = [
    (DataSourceScaleway, (sources.DEP_FILESYSTEM,)),
]

def get_datasource_list(depends):
    return sources.list_from_depends(depends, datasources)

cmd: