FM / config

/snap/core18/2979/usr/lib/python3/dist-packages/cloudinit/config/

/snap/core18/2979/usr/lib/python3/dist-packages/cloudinit/config

Name	Size	Mode	Actions
schemas/	-	0755	rm
__pycache__/	-	0755	rm
cc_ansible.py	8568	0644	edit dl rm
cc_apk_configure.py	5883	0644	edit dl rm
cc_apt_configure.py	33237	0644	edit dl rm
cc_apt_pipelining.py	2888	0644	edit dl rm
cc_bootcmd.py	2940	0644	edit dl rm
cc_byobu.py	3757	0644	edit dl rm
cc_ca_certs.py	8251	0644	edit dl rm
cc_chef.py	14118	0644	edit dl rm
cc_disable_ec2_metadata.py	2093	0644	edit dl rm
cc_disk_setup.py	33115	0644	edit dl rm
cc_fan.py	3184	0644	edit dl rm
cc_final_message.py	3490	0644	edit dl rm
cc_growpart.py	19890	0644	edit dl rm
cc_grub_dpkg.py	5619	0644	edit dl rm
cc_install_hotplug.py	3901	0644	edit dl rm
cc_keyboard.py	2126	0644	edit dl rm
cc_keys_to_console.py	3713	0644	edit dl rm
cc_landscape.py	4976	0644	edit dl rm
cc_locale.py	1923	0644	edit dl rm
cc_lxd.py	18387	0644	edit dl rm
cc_mcollective.py	6349	0644	edit dl rm
cc_migrator.py	3599	0644	edit dl rm
cc_mounts.py	19486	0644	edit dl rm
cc_ntp.py	20172	0644	edit dl rm
cc_package_update_upgrade_install.py	4530	0644	edit dl rm
cc_phone_home.py	5636	0644	edit dl rm
cc_power_state_change.py	7838	0644	edit dl rm
cc_puppet.py	14066	0644	edit dl rm
cc_refresh_rmc_and_interface.py	5614	0644	edit dl rm
cc_reset_rmc.py	4642	0644	edit dl rm
cc_resizefs.py	10818	0644	edit dl rm
cc_resolv_conf.py	5130	0644	edit dl rm
cc_rh_subscription.py	17456	0644	edit dl rm
cc_rightscale_userdata.py	4407	0644	edit dl rm
cc_rsyslog.py	10001	0644	edit dl rm
cc_runcmd.py	2993	0644	edit dl rm
cc_salt_minion.py	5668	0644	edit dl rm
cc_scripts_per_boot.py	1717	0644	edit dl rm
cc_scripts_per_instance.py	1873	0644	edit dl rm
cc_scripts_per_once.py	1823	0644	edit dl rm
cc_scripts_user.py	1913	0644	edit dl rm
cc_scripts_vendor.py	2367	0644	edit dl rm
cc_seed_random.py	4928	0644	edit dl rm
cc_set_hostname.py	5012	0644	edit dl rm
cc_set_passwords.py	11315	0644	edit dl rm
cc_snap.py	6539	0644	edit dl rm
cc_spacewalk.py	3604	0644	edit dl rm
cc_ssh.py	14371	0644	edit dl rm
cc_ssh_authkey_fingerprints.py	4338	0644	edit dl rm
cc_ssh_import_id.py	5955	0644	edit dl rm
cc_timezone.py	1475	0644	edit dl rm
cc_ubuntu_advantage.py	17281	0644	edit dl rm
cc_ubuntu_autoinstall.py	4672	0644	edit dl rm
cc_ubuntu_drivers.py	4736	0644	edit dl rm
cc_update_etc_hosts.py	5235	0644	edit dl rm
cc_update_hostname.py	3721	0644	edit dl rm
cc_users_groups.py	7787	0644	edit dl rm
cc_wireguard.py	9507	0644	edit dl rm
cc_write_files.py	6910	0644	edit dl rm
cc_write_files_deferred.py	1718	0644	edit dl rm
cc_yum_add_repo.py	7653	0644	edit dl rm
cc_zypper_add_repo.py	6840	0644	edit dl rm
modules.py	11700	0644	edit dl rm
schema.py	44173	0644	edit dl rm
__init__.py	14	0644	edit dl rm

Edit: /snap/core18/2979/usr/lib/python3/dist-packages/cloudinit/config/cc_grub_dpkg.py (5619B)

# Copyright (C) 2009-2010, 2020 Canonical Ltd.
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
# Author: Matthew Ruffell <matthew.ruffell@canonical.com>
#
# This file is part of cloud-init. See LICENSE file for license information.
"""Grub Dpkg: Configure grub debconf installation device"""

import os
from logging import Logger
from textwrap import dedent

from cloudinit import subp, 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
from cloudinit.subp import ProcessExecutionError

MODULE_DESCRIPTION = """\
Configure which device is used as the target for grub installation. This module
can be enabled/disabled using the ``enabled`` config key in the ``grub_dpkg``
config dict. The global config key ``grub-dpkg`` is an alias for ``grub_dpkg``.
If no installation device is specified this module will execute grub-probe to
determine which disk the /boot directory is associated with.

The value which is placed into the debconf database is in the format which the
grub postinstall script expects. Normally, this is a /dev/disk/by-id/ value,
but we do fallback to the plain disk name if a by-id name is not present.

If this module is executed inside a container, then the debconf database is
seeded with empty values, and install_devices_empty is set to true.
"""
distros = ["ubuntu", "debian"]
meta: MetaSchema = {
    "id": "cc_grub_dpkg",
    "name": "Grub Dpkg",
    "title": "Configure grub debconf installation device",
    "description": MODULE_DESCRIPTION,
    "distros": distros,
    "frequency": PER_INSTANCE,
    "examples": [
        dedent(
            """\
            grub_dpkg:
              enabled: true
              grub-pc/install_devices: /dev/sda
              grub-pc/install_devices_empty: false
            """
        )
    ],
    "activate_by_schema_keys": [],
}

__doc__ = get_meta_doc(meta)

def fetch_idevs(log):
    """
    Fetches the /dev/disk/by-id device grub is installed to.
    Falls back to plain disk name if no by-id entry is present.
    """
    disk = ""
    devices = []

try:
        # get the root disk where the /boot directory resides.
        disk = subp.subp(["grub-probe", "-t", "disk", "/boot"], capture=True)[
            0
        ].strip()
    except ProcessExecutionError as e:
        # grub-common may not be installed, especially on containers
        # FileNotFoundError is a nested exception of ProcessExecutionError
        if isinstance(e.reason, FileNotFoundError):
            log.debug("'grub-probe' not found in $PATH")
        # disks from the container host are present in /proc and /sys
        # which is where grub-probe determines where /boot is.
        # it then checks for existence in /dev, which fails as host disks
        # are not exposed to the container.
        elif "failed to get canonical path" in e.stderr:
            log.debug("grub-probe 'failed to get canonical path'")
        else:
            # something bad has happened, continue to log the error
            raise
    except Exception:
        util.logexc(log, "grub-probe failed to execute for grub-dpkg")

if not disk or not os.path.exists(disk):
        # If we failed to detect a disk, we can return early
        return ""

try:
        # check if disk exists and use udevadm to fetch symlinks
        devices = (
            subp.subp(
                ["udevadm", "info", "--root", "--query=symlink", disk],
                capture=True,
            )[0]
            .strip()
            .split()
        )
    except Exception:
        util.logexc(
            log, "udevadm DEVLINKS symlink query failed for disk='%s'", disk
        )

log.debug("considering these device symlinks: %s", ",".join(devices))
    # filter symlinks for /dev/disk/by-id entries
    devices = [dev for dev in devices if "disk/by-id" in dev]
    log.debug("filtered to these disk/by-id symlinks: %s", ",".join(devices))
    # select first device if there is one, else fall back to plain name
    idevs = sorted(devices)[0] if devices else disk
    log.debug("selected %s", idevs)

return idevs

def handle(
    name: str, cfg: Config, cloud: Cloud, log: Logger, args: list
) -> None:

mycfg = cfg.get("grub_dpkg", cfg.get("grub-dpkg", {}))
    if not mycfg:
        mycfg = {}

enabled = mycfg.get("enabled", True)
    if util.is_false(enabled):
        log.debug("%s disabled by config grub_dpkg/enabled=%s", name, enabled)
        return

idevs = util.get_cfg_option_str(mycfg, "grub-pc/install_devices", None)
    if idevs is None:
        idevs = fetch_idevs(log)

idevs_empty = mycfg.get("grub-pc/install_devices_empty")
    if idevs_empty is None:
        idevs_empty = not idevs
    elif not isinstance(idevs_empty, bool):
        idevs_empty = util.translate_bool(idevs_empty)
    idevs_empty = str(idevs_empty).lower()

# now idevs and idevs_empty are set to determined values
    # or, those set by user

dconf_sel = (
        "grub-pc grub-pc/install_devices string %s\n"
        "grub-pc grub-pc/install_devices_empty boolean %s\n"
        % (idevs, idevs_empty)
    )

log.debug(
        "Setting grub debconf-set-selections with '%s','%s'"
        % (idevs, idevs_empty)
    )

try:
        subp.subp(["debconf-set-selections"], dconf_sel)
    except Exception:
        util.logexc(log, "Failed to run debconf-set-selections for grub-dpkg")

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