FM / sources

/usr/lib/python3.6/site-packages/cloudinit/sources/

/usr/lib/python3.6/site-packages/cloudinit/sources

Name	Size	Mode	Actions
azure/	-	0755	rm
helpers/	-	0755	rm
__pycache__/	-	0755	rm
DataSourceAkamai.py	12969	0644	edit dl rm
DataSourceAliYun.py	3037	0644	edit dl rm
DataSourceAltCloud.py	8423	0644	edit dl rm
DataSourceAzure.py	74697	0644	edit dl rm
DataSourceBigstep.py	1941	0644	edit dl rm
DataSourceCloudSigma.py	3956	0644	edit dl rm
DataSourceCloudStack.py	8281	0644	edit dl rm
DataSourceConfigDrive.py	11230	0644	edit dl rm
DataSourceDigitalOcean.py	4237	0644	edit dl rm
DataSourceEc2.py	36608	0644	edit dl rm
DataSourceExoscale.py	9000	0644	edit dl rm
DataSourceGCE.py	14150	0644	edit dl rm
DataSourceHetzner.py	5442	0644	edit dl rm
DataSourceIBMCloud.py	14371	0644	edit dl rm
DataSourceLXD.py	17463	0644	edit dl rm
DataSourceMAAS.py	15488	0644	edit dl rm
DataSourceNoCloud.py	13308	0644	edit dl rm
DataSourceNone.py	1370	0644	edit dl rm
DataSourceNWCS.py	4481	0644	edit dl rm
DataSourceOpenNebula.py	16143	0644	edit dl rm
DataSourceOpenStack.py	10580	0644	edit dl rm
DataSourceOracle.py	14936	0644	edit dl rm
DataSourceOVF.py	12963	0644	edit dl rm
DataSourceRbxCloud.py	8026	0644	edit dl rm
DataSourceScaleway.py	15796	0644	edit dl rm
DataSourceSmartOS.py	34785	0644	edit dl rm
DataSourceUpCloud.py	5609	0644	edit dl rm
DataSourceVMware.py	36909	0644	edit dl rm
DataSourceVultr.py	4585	0644	edit dl rm
__init__.py	44017	0644	edit dl rm

Edit: /usr/lib/python3.6/site-packages/cloudinit/sources/DataSourceAltCloud.py (8423B)

# Copyright (C) 2009-2010 Canonical Ltd.
# Copyright (C) 2012, 2013 Hewlett-Packard Development Company, L.P.
# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Joe VLcek <JVLcek@RedHat.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

"""
This file contains code used to gather the user data passed to an
instance on RHEVm and vSphere.
"""

import errno
import logging
import os
import os.path

from cloudinit import dmi, sources, subp, util

LOG = logging.getLogger(__name__)

# Needed file paths
CLOUD_INFO_FILE = "/etc/sysconfig/cloud-info"

# Shell command lists
CMD_PROBE_FLOPPY = ["modprobe", "floppy"]

META_DATA_NOT_SUPPORTED = {
    "block-device-mapping": {},
    "instance-id": 455,
    "local-hostname": "localhost",
    "placement": {},
}

def read_user_data_callback(mount_dir):
    """
    Description:
        This callback will be applied by util.mount_cb() on the mounted
        file.

Deltacloud file name contains deltacloud. Those not using
        Deltacloud but instead instrumenting the injection, could
        drop deltacloud from the file name.

Input:
        mount_dir - Mount directory

Returns:
        User Data

"""

deltacloud_user_data_file = mount_dir + "/deltacloud-user-data.txt"
    user_data_file = mount_dir + "/user-data.txt"

# First try deltacloud_user_data_file. On failure try user_data_file.
    try:
        user_data = util.load_file(deltacloud_user_data_file).strip()
    except IOError:
        try:
            user_data = util.load_file(user_data_file).strip()
        except IOError:
            util.logexc(LOG, "Failed accessing user data file.")
            return None

return user_data

class DataSourceAltCloud(sources.DataSource):

dsname = "AltCloud"

def __init__(self, sys_cfg, distro, paths):
        sources.DataSource.__init__(self, sys_cfg, distro, paths)
        self.seed = None
        self.supported_seed_starts = ("/", "file://")

def __str__(self):
        root = sources.DataSource.__str__(self)
        return "%s [seed=%s]" % (root, self.seed)

def get_cloud_type(self):
        """
        Description:
            Get the type for the cloud back end this instance is running on
            by examining the string returned by reading either:
                CLOUD_INFO_FILE or
                the dmi data.

Input:
            None

Returns:
            One of the following strings:
            'RHEV', 'VSPHERE' or 'UNKNOWN'

"""
        if os.path.exists(CLOUD_INFO_FILE):
            try:
                cloud_type = util.load_file(CLOUD_INFO_FILE).strip().upper()
            except IOError:
                util.logexc(
                    LOG,
                    "Unable to access cloud info file at %s.",
                    CLOUD_INFO_FILE,
                )
                return "UNKNOWN"
            return cloud_type
        system_name = dmi.read_dmi_data("system-product-name")
        if not system_name:
            return "UNKNOWN"

sys_name = system_name.upper()

if sys_name.startswith("RHEV"):
            return "RHEV"

if sys_name.startswith("VMWARE"):
            return "VSPHERE"

return "UNKNOWN"

def _get_data(self):
        """
        Description:
            User Data is passed to the launching instance which
            is used to perform instance configuration.

Cloud providers expose the user data differently.
            It is necessary to determine which cloud provider
            the current instance is running on to determine
            how to access the user data. Images built with
            image factory will contain a CLOUD_INFO_FILE which
            contains a string identifying the cloud provider.

Images not built with Imagefactory will try to
            determine what the cloud provider is based on system
            information.
        """

LOG.debug("Invoked get_data()")

cloud_type = self.get_cloud_type()

LOG.debug("cloud_type: %s", str(cloud_type))

if "RHEV" in cloud_type:
            if self.user_data_rhevm():
                return True
        elif "VSPHERE" in cloud_type:
            if self.user_data_vsphere():
                return True
        else:
            # there was no recognized alternate cloud type
            # indicating this handler should not be used.
            return False

# No user data found
        util.logexc(LOG, "Failed accessing user data.")
        return False

def _get_subplatform(self):
        """Return the subplatform metadata details."""
        cloud_type = self.get_cloud_type()
        if not hasattr(self, "source"):
            self.source = sources.METADATA_UNKNOWN
        if cloud_type == "RHEV":
            self.source = "/dev/fd0"
        return "%s (%s)" % (cloud_type.lower(), self.source)

def user_data_rhevm(self):
        """
        RHEVM specific userdata read

If on RHEV-M the user data will be contained on the
         floppy device in file <user_data_file>
         To access it:
           modprobe floppy

Leverage util.mount_cb to:
               mkdir <tmp mount dir>
               mount /dev/fd0 <tmp mount dir>
               The call back passed to util.mount_cb will do:
                   read <tmp mount dir>/<user_data_file>
        """

return_str = None

# modprobe floppy
        try:
            modprobe_floppy()
        except subp.ProcessExecutionError as e:
            util.logexc(LOG, "Failed modprobe: %s", e)
            return False

floppy_dev = "/dev/fd0"

# udevadm settle for floppy device
        try:
            util.udevadm_settle(exists=floppy_dev, timeout=5)
        except (subp.ProcessExecutionError, OSError) as e:
            util.logexc(LOG, "Failed udevadm_settle: %s\n", e)
            return False

try:
            return_str = util.mount_cb(floppy_dev, read_user_data_callback)
        except OSError as err:
            if err.errno != errno.ENOENT:
                raise
        except util.MountFailedError:
            util.logexc(
                LOG,
                "Failed to mount %s when looking for user data",
                floppy_dev,
            )

self.userdata_raw = return_str
        self.metadata = META_DATA_NOT_SUPPORTED

if return_str:
            return True
        else:
            return False

def user_data_vsphere(self):
        """
        vSphere specific userdata read

If on vSphere the user data will be contained on the
        cdrom device in file <user_data_file>
        To access it:
           Leverage util.mount_cb to:
               mkdir <tmp mount dir>
               mount /dev/fd0 <tmp mount dir>
               The call back passed to util.mount_cb will do:
                   read <tmp mount dir>/<user_data_file>
        """

return_str = None
        cdrom_list = util.find_devs_with("LABEL=CDROM")
        for cdrom_dev in cdrom_list:
            try:
                return_str = util.mount_cb(cdrom_dev, read_user_data_callback)
                if return_str:
                    self.source = cdrom_dev
                    break
            except OSError as err:
                if err.errno != errno.ENOENT:
                    raise
            except util.MountFailedError:
                util.logexc(
                    LOG,
                    "Failed to mount %s when looking for user data",
                    cdrom_dev,
                )

self.userdata_raw = return_str
        self.metadata = META_DATA_NOT_SUPPORTED

if return_str:
            return True
        else:
            return False

def modprobe_floppy():
    out, _err = subp.subp(CMD_PROBE_FLOPPY)
    LOG.debug("Command: %s\nOutput%s", " ".join(CMD_PROBE_FLOPPY), out)

# Used to match classes to dependencies
# Source DataSourceAltCloud does not really depend on networking.
# In the future 'dsmode' like behavior can be added to offer user
# the ability to run before networking.
datasources = [
    (DataSourceAltCloud, (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)

cmd: