404

[ Avaa Bypassed ]




Upload:

Command:

botdev@3.21.21.220: ~ $
# Copyright (C) 2013 Craig Tracey
# Copyright (C) 2013 Hewlett-Packard Development Company, L.P.
#
# Author: Craig Tracey <craigtracey@gmail.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

"""Resolv Conf: configure resolv.conf"""

from logging import Logger
from textwrap import dedent

from cloudinit import log as logging
from cloudinit import templater, util
from cloudinit.cloud import Cloud
from cloudinit.config import Config
from cloudinit.config.schema import MetaSchema, get_meta_doc
from cloudinit.settings import PER_INSTANCE

LOG = logging.getLogger(__name__)

RESOLVE_CONFIG_TEMPLATE_MAP = {
    "/etc/resolv.conf": "resolv.conf",
    "/etc/systemd/resolved.conf": "systemd.resolved.conf",
}

MODULE_DESCRIPTION = """\
Unless manually editing :file:`/etc/resolv.conf` is the correct way to manage
nameserver information on your operating system, you do not want to use
this module. Many distros have moved away from manually editing ``resolv.conf``
so please verify that this is the preferred nameserver management method for
your distro before using this module.

Note that using :ref:`network_config` is preferred, rather than using this
module, when possible.

This module is intended to manage resolv.conf in environments where early
configuration of resolv.conf is necessary for further bootstrapping and/or
where configuration management such as puppet or chef own DNS configuration.

When using a :ref:`datasource_config_drive` and a RHEL-like system,
resolv.conf will also be managed automatically due to the available
information provided for DNS servers in the :ref:`network_config_v2` format.
For those that wish to have different settings, use this module.

In order for the ``resolv_conf`` section to be applied, ``manage_resolv_conf``
must be set ``true``.

.. note::
    For Red Hat with sysconfig, be sure to set PEERDNS=no for all DHCP
    enabled NICs.
"""

meta: MetaSchema = {
    "id": "cc_resolv_conf",
    "name": "Resolv Conf",
    "title": "Configure resolv.conf",
    "description": MODULE_DESCRIPTION,
    "distros": [
        "alpine",
        "fedora",
        "mariner",
        "opensuse",
        "opensuse-leap",
        "opensuse-microos",
        "opensuse-tumbleweed",
        "photon",
        "rhel",
        "sle_hpc",
        "sle-micro",
        "sles",
    ],
    "frequency": PER_INSTANCE,
    "examples": [
        dedent(
            """\
            manage_resolv_conf: true
            resolv_conf:
              nameservers:
                - 8.8.8.8
                - 8.8.4.4
              searchdomains:
                - foo.example.com
                - bar.example.com
              domain: example.com
              sortlist:
                - 10.0.0.1/255
                - 10.0.0.2
              options:
                rotate: true
                timeout: 1
            """
        )
    ],
    "activate_by_schema_keys": ["manage_resolv_conf"],
}

__doc__ = get_meta_doc(meta)


def generate_resolv_conf(template_fn, params, target_fname):
    flags = []
    false_flags = []

    if "options" in params:
        for key, val in params["options"].items():
            if isinstance(val, bool):
                if val:
                    flags.append(key)
                else:
                    false_flags.append(key)

    for flag in flags + false_flags:
        del params["options"][flag]

    if not params.get("options"):
        params["options"] = {}

    params["flags"] = flags
    LOG.debug("Writing resolv.conf from template %s", template_fn)
    templater.render_to_file(template_fn, target_fname, params)


def handle(
    name: str, cfg: Config, cloud: Cloud, log: Logger, args: list
) -> None:
    """
    Handler for resolv.conf

    @param name: The module name "resolv-conf" from cloud.cfg
    @param cfg: A nested dict containing the entire cloud config contents.
    @param cloud: The L{CloudInit} object in use.
    @param log: Pre-initialized Python logger object to use for logging.
    @param args: Any module arguments from cloud.cfg
    """
    if "manage_resolv_conf" not in cfg:
        log.debug(
            "Skipping module named %s,"
            " no 'manage_resolv_conf' key in configuration",
            name,
        )
        return

    if not util.get_cfg_option_bool(cfg, "manage_resolv_conf", False):
        log.debug(
            "Skipping module named %s,"
            " 'manage_resolv_conf' present but set to False",
            name,
        )
        return

    if "resolv_conf" not in cfg:
        log.warning("manage_resolv_conf True but no parameters provided!")
        return

    try:
        template_fn = cloud.get_template_filename(
            RESOLVE_CONFIG_TEMPLATE_MAP[cloud.distro.resolve_conf_fn]
        )
    except KeyError:
        log.warning("No template found, not rendering resolve configs")
        return

    generate_resolv_conf(
        template_fn=template_fn,
        params=cfg["resolv_conf"],
        target_fname=cloud.distro.resolve_conf_fn,
    )
    return


# vi: ts=4 expandtab

Filemanager

Name Type Size Permission Actions
__pycache__ Folder 0755
schemas Folder 0755
__init__.py File 14 B 0644
cc_ansible.py File 8.37 KB 0644
cc_apk_configure.py File 5.75 KB 0644
cc_apt_configure.py File 32.46 KB 0644
cc_apt_pipelining.py File 2.82 KB 0644
cc_bootcmd.py File 2.87 KB 0644
cc_byobu.py File 3.67 KB 0644
cc_ca_certs.py File 8.06 KB 0644
cc_chef.py File 13.79 KB 0644
cc_disable_ec2_metadata.py File 2.04 KB 0644
cc_disk_setup.py File 32.34 KB 0644
cc_fan.py File 3.11 KB 0644
cc_final_message.py File 3.41 KB 0644
cc_growpart.py File 19.42 KB 0644
cc_grub_dpkg.py File 5.49 KB 0644
cc_install_hotplug.py File 3.81 KB 0644
cc_keyboard.py File 2.08 KB 0644
cc_keys_to_console.py File 3.63 KB 0644
cc_landscape.py File 4.86 KB 0644
cc_locale.py File 1.88 KB 0644
cc_lxd.py File 17.96 KB 0644
cc_mcollective.py File 6.2 KB 0644
cc_migrator.py File 3.51 KB 0644
cc_mounts.py File 19.03 KB 0644
cc_ntp.py File 19.7 KB 0644
cc_package_update_upgrade_install.py File 4.42 KB 0644
cc_phone_home.py File 5.5 KB 0644
cc_power_state_change.py File 7.65 KB 0644
cc_puppet.py File 13.74 KB 0644
cc_refresh_rmc_and_interface.py File 5.48 KB 0644
cc_reset_rmc.py File 4.53 KB 0644
cc_resizefs.py File 10.56 KB 0644
cc_resolv_conf.py File 5.01 KB 0644
cc_rh_subscription.py File 17.05 KB 0644
cc_rightscale_userdata.py File 4.3 KB 0644
cc_rsyslog.py File 9.77 KB 0644
cc_runcmd.py File 2.92 KB 0644
cc_salt_minion.py File 5.54 KB 0644
cc_scripts_per_boot.py File 1.68 KB 0644
cc_scripts_per_instance.py File 1.83 KB 0644
cc_scripts_per_once.py File 1.78 KB 0644
cc_scripts_user.py File 1.87 KB 0644
cc_scripts_vendor.py File 2.31 KB 0644
cc_seed_random.py File 4.81 KB 0644
cc_set_hostname.py File 4.89 KB 0644
cc_set_passwords.py File 11.05 KB 0644
cc_snap.py File 6.39 KB 0644
cc_spacewalk.py File 3.52 KB 0644
cc_ssh.py File 14.03 KB 0644
cc_ssh_authkey_fingerprints.py File 4.24 KB 0644
cc_ssh_import_id.py File 5.82 KB 0644
cc_timezone.py File 1.44 KB 0644
cc_ubuntu_advantage.py File 16.88 KB 0644
cc_ubuntu_autoinstall.py File 4.56 KB 0644
cc_ubuntu_drivers.py File 4.63 KB 0644
cc_update_etc_hosts.py File 5.11 KB 0644
cc_update_hostname.py File 3.63 KB 0644
cc_users_groups.py File 7.6 KB 0644
cc_wireguard.py File 9.28 KB 0644
cc_write_files.py File 6.75 KB 0644
cc_write_files_deferred.py File 1.68 KB 0644
cc_yum_add_repo.py File 7.47 KB 0644
cc_zypper_add_repo.py File 6.68 KB 0644
modules.py File 11.43 KB 0644
schema.py File 43.14 KB 0644