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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
schemas	[ DIR ]	drwxr-xr-x
__init__.py	40 B	-rw-r--r--
cc_ansible.py	8.17 KB	-rw-r--r--
cc_apk_configure.py	4.23 KB	-rw-r--r--
cc_apt_configure.py	38.23 KB	-rw-r--r--
cc_apt_pipelining.py	1.85 KB	-rw-r--r--
cc_bootcmd.py	1.75 KB	-rw-r--r--
cc_byobu.py	2.72 KB	-rw-r--r--
cc_ca_certs.py	8.67 KB	-rw-r--r--
cc_chef.py	13.19 KB	-rw-r--r--
cc_disable_ec2_metadata.py	1.6 KB	-rw-r--r--
cc_disk_setup.py	29.6 KB	-rw-r--r--
cc_fan.py	1.95 KB	-rw-r--r--
cc_final_message.py	2.5 KB	-rw-r--r--
cc_growpart.py	18.37 KB	-rw-r--r--
cc_grub_dpkg.py	5.39 KB	-rw-r--r--
cc_install_hotplug.py	3.19 KB	-rw-r--r--
cc_keyboard.py	1.49 KB	-rw-r--r--
cc_keys_to_console.py	2.09 KB	-rw-r--r--
cc_landscape.py	3.06 KB	-rw-r--r--
cc_locale.py	1.18 KB	-rw-r--r--
cc_lxd.py	13.44 KB	-rw-r--r--
cc_mcollective.py	4.11 KB	-rw-r--r--
cc_mounts.py	18.08 KB	-rw-r--r--
cc_ntp.py	18.91 KB	-rw-r--r--
cc_package_update_upgrade_inst...	3.99 KB	-rw-r--r--
cc_phone_home.py	3.74 KB	-rw-r--r--
cc_power_state_change.py	6.15 KB	-rw-r--r--
cc_puppet.py	10.72 KB	-rw-r--r--
cc_reset_rmc.py	4.33 KB	-rw-r--r--
cc_resizefs.py	10.63 KB	-rw-r--r--
cc_resolv_conf.py	3.13 KB	-rw-r--r--
cc_rh_subscription.py	15.19 KB	-rw-r--r--
cc_rsyslog.py	11.47 KB	-rw-r--r--
cc_runcmd.py	1.6 KB	-rw-r--r--
cc_salt_minion.py	3.96 KB	-rw-r--r--
cc_scripts_per_boot.py	1.27 KB	-rw-r--r--
cc_scripts_per_instance.py	1.26 KB	-rw-r--r--
cc_scripts_per_once.py	1.24 KB	-rw-r--r--
cc_scripts_user.py	1.25 KB	-rw-r--r--
cc_scripts_vendor.py	1.26 KB	-rw-r--r--
cc_seed_random.py	3 KB	-rw-r--r--
cc_set_hostname.py	3.4 KB	-rw-r--r--
cc_set_passwords.py	10.32 KB	-rw-r--r--
cc_snap.py	3.32 KB	-rw-r--r--
cc_spacewalk.py	2.64 KB	-rw-r--r--
cc_ssh.py	10.96 KB	-rw-r--r--
cc_ssh_authkey_fingerprints.py	3.76 KB	-rw-r--r--
cc_ssh_import_id.py	5.42 KB	-rw-r--r--
cc_timezone.py	1.13 KB	-rw-r--r--
cc_ubuntu_autoinstall.py	1.24 KB	-rw-r--r--
cc_ubuntu_drivers.py	4.08 KB	-rw-r--r--
cc_ubuntu_pro.py	13.64 KB	-rw-r--r--
cc_update_etc_hosts.py	2.46 KB	-rw-r--r--
cc_update_hostname.py	2.18 KB	-rw-r--r--
cc_users_groups.py	2.86 KB	-rw-r--r--
cc_wireguard.py	6.67 KB	-rw-r--r--
cc_write_files.py	6 KB	-rw-r--r--
cc_write_files_deferred.py	1.28 KB	-rw-r--r--
cc_yum_add_repo.py	4.53 KB	-rw-r--r--
cc_zypper_add_repo.py	4.93 KB	-rw-r--r--
modules.py	13.32 KB	-rw-r--r--
schema.py	50.77 KB	-rw-r--r--

Code Editor : cc_set_hostname.py

# Copyright (C) 2011 Canonical Ltd.
# Copyright (C) 2012, 2013 Hewlett-Packard Development Company, L.P.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
#
# This file is part of cloud-init. See LICENSE file for license information.
"""Set Hostname: Set hostname and FQDN"""

import logging
import os

from cloudinit import util
from cloudinit.atomic_helper import write_json
from cloudinit.cloud import Cloud
from cloudinit.config import Config
from cloudinit.config.schema import MetaSchema
from cloudinit.distros import ALL_DISTROS
from cloudinit.settings import PER_INSTANCE

meta: MetaSchema = {
    "id": "cc_set_hostname",
    "distros": [ALL_DISTROS],
    "frequency": PER_INSTANCE,
    "activate_by_schema_keys": [],
}

LOG = logging.getLogger(__name__)

class SetHostnameError(Exception):
    """Raised when the distro runs into an exception when setting hostname.

This may happen if we attempt to set the hostname early in cloud-init's
    init-local timeframe as certain services may not be running yet.
    """

def handle(name: str, cfg: Config, cloud: Cloud, args: list) -> None:
    if util.get_cfg_option_bool(cfg, "preserve_hostname", False):
        LOG.debug(
            "Configuration option 'preserve_hostname' is set,"
            " not setting the hostname in module %s",
            name,
        )
        return

# Set prefer_fqdn_over_hostname value in distro
    hostname_fqdn = util.get_cfg_option_bool(
        cfg, "prefer_fqdn_over_hostname", None
    )
    if hostname_fqdn is not None:
        cloud.distro.set_option("prefer_fqdn_over_hostname", hostname_fqdn)

# Set create_hostname_file in distro
    create_hostname_file = util.get_cfg_option_bool(
        cfg, "create_hostname_file", None
    )
    if create_hostname_file is not None:
        cloud.distro.set_option("create_hostname_file", create_hostname_file)

(hostname, fqdn, is_default) = util.get_hostname_fqdn(cfg, cloud)
    # Check for previous successful invocation of set_hostname

# set-hostname artifact file accounts for both hostname and fqdn
    # deltas. As such, it's format is different than cc_update_hostname's
    # previous-hostname file which only contains the base hostname.
    # TODO consolidate previous-hostname and set-hostname artifact files and
    # distro._read_hostname implementation so we only validate  one artifact.
    prev_fn = os.path.join(cloud.get_cpath("data"), "set-hostname")
    prev_hostname = {}
    if os.path.exists(prev_fn) and os.stat(prev_fn).st_size > 0:
        prev_hostname = util.load_json(util.load_text_file(prev_fn))
    hostname_changed = hostname != prev_hostname.get(
        "hostname"
    ) or fqdn != prev_hostname.get("fqdn")
    if not hostname_changed:
        LOG.debug("No hostname changes. Skipping set_hostname")
        return
    if is_default and hostname == "localhost":
        # https://github.com/systemd/systemd/commit/d39079fcaa05e23540d2b1f0270fa31c22a7e9f1
        LOG.debug("Hostname is localhost. Let other services handle this.")
        return
    LOG.debug("Setting the hostname to %s (%s)", fqdn, hostname)
    try:
        cloud.distro.set_hostname(hostname, fqdn)
    except Exception as e:
        msg = "Failed to set the hostname to %s (%s)" % (fqdn, hostname)
        util.logexc(LOG, msg)
        raise SetHostnameError("%s: %s" % (msg, e)) from e
    write_json(prev_fn, {"hostname": hostname, "fqdn": fqdn})

${this.title}

Code Editor : cc_set_hostname.py