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/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/DataSourceConfigDrive.py (11275B)

# Copyright (C) 2012 Canonical Ltd.
# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

import os

from cloudinit import log as logging
from cloudinit import sources, subp, util
from cloudinit.event import EventScope, EventType
from cloudinit.net import eni
from cloudinit.sources.DataSourceIBMCloud import get_ibm_platform
from cloudinit.sources.helpers import openstack

LOG = logging.getLogger(__name__)

# Various defaults/constants...
DEFAULT_IID = "iid-dsconfigdrive"
DEFAULT_MODE = "pass"
DEFAULT_METADATA = {
    "instance-id": DEFAULT_IID,
}
FS_TYPES = ("vfat", "iso9660")
LABEL_TYPES = ("config-2", "CONFIG-2")
POSSIBLE_MOUNTS = ("sr", "cd")
OPTICAL_DEVICES = tuple(
    ("/dev/%s%s" % (z, i) for z in POSSIBLE_MOUNTS for i in range(0, 2))
)

class DataSourceConfigDrive(openstack.SourceMixin, sources.DataSource):

dsname = "ConfigDrive"

supported_update_events = {
        EventScope.NETWORK: {
            EventType.BOOT_NEW_INSTANCE,
            EventType.BOOT,
            EventType.BOOT_LEGACY,
            EventType.HOTPLUG,
        }
    }

def __init__(self, sys_cfg, distro, paths):
        super(DataSourceConfigDrive, self).__init__(sys_cfg, distro, paths)
        self.source = None
        self.seed_dir = os.path.join(paths.seed_dir, "config_drive")
        self.version = None
        self.ec2_metadata = None
        self._network_config = None
        self.network_json = sources.UNSET
        self.network_eni = None
        self.known_macs = None
        self.files = {}

def __str__(self):
        root = sources.DataSource.__str__(self)
        mstr = "%s [%s,ver=%s]" % (root, self.dsmode, self.version)
        mstr += "[source=%s]" % (self.source)
        return mstr

def _get_data(self):
        found = None
        md = {}
        results = {}
        for sdir in (self.seed_dir, "/config-drive"):
            if not os.path.isdir(sdir):
                continue
            try:
                results = read_config_drive(sdir)
                found = sdir
                break
            except openstack.NonReadable:
                util.logexc(LOG, "Failed reading config drive from %s", sdir)

if not found:
            dslist = self.sys_cfg.get("datasource_list")
            for dev in find_candidate_devs(dslist=dslist):
                mtype = None
                if util.is_BSD():
                    if dev.startswith("/dev/cd"):
                        mtype = "cd9660"
                try:
                    results = util.mount_cb(
                        dev, read_config_drive, mtype=mtype
                    )
                    found = dev
                except openstack.NonReadable:
                    pass
                except util.MountFailedError:
                    pass
                except openstack.BrokenMetadata:
                    util.logexc(LOG, "Broken config drive: %s", dev)
                if found:
                    break
        if not found:
            return False

md = results.get("metadata", {})
        md = util.mergemanydict([md, DEFAULT_METADATA])

self.dsmode = self._determine_dsmode(
            [
                results.get("dsmode"),
                self.ds_cfg.get("dsmode"),
                sources.DSMODE_PASS if results["version"] == 1 else None,
            ]
        )

if self.dsmode == sources.DSMODE_DISABLED:
            return False

prev_iid = get_previous_iid(self.paths)
        cur_iid = md["instance-id"]
        if prev_iid != cur_iid:
            # better would be to handle this centrally, allowing
            # the datasource to do something on new instance id
            # note, networking is only rendered here if dsmode is DSMODE_PASS
            # which means "DISABLED, but render files and networking"
            on_first_boot(
                results,
                distro=self.distro,
                network=self.dsmode == sources.DSMODE_PASS,
            )

# This is legacy and sneaky.  If dsmode is 'pass' then do not claim
        # the datasource was used, even though we did run on_first_boot above.
        if self.dsmode == sources.DSMODE_PASS:
            LOG.debug(
                "%s: not claiming datasource, dsmode=%s", self, self.dsmode
            )
            return False

self.source = found
        self.metadata = md
        self.ec2_metadata = results.get("ec2-metadata")
        self.userdata_raw = results.get("userdata")
        self.version = results["version"]
        self.files.update(results.get("files", {}))

vd = results.get("vendordata")
        self.vendordata_pure = vd
        try:
            self.vendordata_raw = sources.convert_vendordata(vd)
        except ValueError as e:
            LOG.warning("Invalid content in vendor-data: %s", e)
            self.vendordata_raw = None

vd2 = results.get("vendordata2")
        self.vendordata2_pure = vd2
        try:
            self.vendordata2_raw = sources.convert_vendordata(vd2)
        except ValueError as e:
            LOG.warning("Invalid content in vendor-data2: %s", e)
            self.vendordata2_raw = None

# network_config is an /etc/network/interfaces formated file and is
        # obsolete compared to networkdata (from network_data.json) but both
        # might be present.
        self.network_eni = results.get("network_config")
        self.network_json = results.get("networkdata")
        return True

def check_instance_id(self, sys_cfg):
        # quickly (local check only) if self.instance_id is still valid
        return sources.instance_id_matches_system_uuid(self.get_instance_id())

@property
    def network_config(self):
        if self._network_config is None:
            if self.network_json not in (None, sources.UNSET):
                LOG.debug("network config provided via network_json")
                self._network_config = openstack.convert_net_json(
                    self.network_json, known_macs=self.known_macs
                )
            elif self.network_eni is not None:
                self._network_config = eni.convert_eni_data(self.network_eni)
                LOG.debug("network config provided via converted eni data")
            else:
                LOG.debug("no network configuration available")
        return self._network_config

@property
    def platform(self):
        return "openstack"

def _get_subplatform(self):
        """Return the subplatform metadata source details."""
        if self.source.startswith("/dev"):
            subplatform_type = "config-disk"
        else:
            subplatform_type = "seed-dir"
        return "%s (%s)" % (subplatform_type, self.source)

def read_config_drive(source_dir):
    reader = openstack.ConfigDriveReader(source_dir)
    finders = [
        (reader.read_v2, [], {}),
        (reader.read_v1, [], {}),
    ]
    excps = []
    for (functor, args, kwargs) in finders:
        try:
            return functor(*args, **kwargs)
        except openstack.NonReadable as e:
            excps.append(e)
    raise excps[-1]

def get_previous_iid(paths):
    # interestingly, for this purpose the "previous" instance-id is the current
    # instance-id.  cloud-init hasn't moved them over yet as this datasource
    # hasn't declared itself found.
    fname = os.path.join(paths.get_cpath("data"), "instance-id")
    try:
        return util.load_file(fname).rstrip("\n")
    except IOError:
        return None

def on_first_boot(data, distro=None, network=True):
    """Performs any first-boot actions using data read from a config-drive."""
    if not isinstance(data, dict):
        raise TypeError(
            "Config-drive data expected to be a dict; not %s" % (type(data))
        )
    if network:
        net_conf = data.get("network_config", "")
        if net_conf and distro:
            LOG.warning("Updating network interfaces from config drive")
            distro.apply_network_config(eni.convert_eni_data(net_conf))
    write_injected_files(data.get("files"))

def write_injected_files(files):
    if files:
        LOG.debug("Writing %s injected files", len(files))
        for (filename, content) in files.items():
            if not filename.startswith(os.sep):
                filename = os.sep + filename
            try:
                util.write_file(filename, content, mode=0o660)
            except IOError:
                util.logexc(LOG, "Failed writing file: %s", filename)

def find_candidate_devs(probe_optical=True, dslist=None):
    """Return a list of devices that may contain the config drive.

The returned list is sorted by search order where the first item has
    should be searched first (highest priority)

config drive v1:
       Per documentation, this is "associated as the last available disk on the
       instance", and should be VFAT.
       Currently, we do not restrict search list to "last available disk"

config drive v2:
       Disk should be:
        * either vfat or iso9660 formatted
        * labeled with 'config-2' or 'CONFIG-2'
    """
    if dslist is None:
        dslist = []

# query optical drive to get it in blkid cache for 2.6 kernels
    if probe_optical:
        for device in OPTICAL_DEVICES:
            try:
                util.find_devs_with(path=device)
            except subp.ProcessExecutionError:
                pass

by_fstype = []
    for fs_type in FS_TYPES:
        by_fstype.extend(util.find_devs_with("TYPE=%s" % (fs_type)))

by_label = []
    for label in LABEL_TYPES:
        by_label.extend(util.find_devs_with("LABEL=%s" % (label)))

# give preference to "last available disk" (vdb over vda)
    # note, this is not a perfect rendition of that.
    by_fstype.sort(reverse=True)
    by_label.sort(reverse=True)

# combine list of items by putting by-label items first
    # followed by fstype items, but with dupes removed
    candidates = by_label + [d for d in by_fstype if d not in by_label]

# We are looking for a block device or partition with necessary label or
    # an unpartitioned block device (ex sda, not sda1)
    devices = [
        d for d in candidates if d in by_label or not util.is_partition(d)
    ]

LOG.debug("devices=%s dslist=%s", devices, dslist)
    if devices and "IBMCloud" in dslist:
        # IBMCloud uses config-2 label, but limited to a single UUID.
        ibm_platform, ibm_path = get_ibm_platform()
        if ibm_path in devices:
            devices.remove(ibm_path)
            LOG.debug(
                "IBMCloud device '%s' (%s) removed from candidate list",
                ibm_path,
                ibm_platform,
            )

return devices

# Legacy: Must be present in case we load an old pkl object
DataSourceConfigDriveNet = DataSourceConfigDrive

# Used to match classes to dependencies
datasources = [
    (DataSourceConfigDrive, (sources.DEP_FILESYSTEM,)),
]

# 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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