FM / config

/snap/core18/2999/usr/lib/python3/dist-packages/cloudinit/config/

/snap/core18/2999/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/core18/2999/usr/lib/python3/dist-packages/cloudinit/config/cc_write_files.py (6910B)

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

"""Write Files: write arbitrary files"""

import base64
import os
from logging import Logger
from textwrap import dedent

from cloudinit import log as logging
from cloudinit import 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

DEFAULT_PERMS = 0o644
DEFAULT_DEFER = False
TEXT_PLAIN_ENC = "text/plain"

LOG = logging.getLogger(__name__)

meta: MetaSchema = {
    "id": "cc_write_files",
    "name": "Write Files",
    "title": "write arbitrary files",
    "description": dedent(
        """\
        Write out arbitrary content to files, optionally setting permissions.
        Parent folders in the path are created if absent.
        Content can be specified in plain text or binary. Data encoded with
        either base64 or binary gzip data can be specified and will be decoded
        before being written. For empty file creation, content can be omitted.

.. note::
        If multiline data is provided, care should be taken to ensure that it
        follows yaml formatting standards. To specify binary data, use the yaml
        option ``!!binary``

.. note::
        Do not write files under /tmp during boot because of a race with
        systemd-tmpfiles-clean that can cause temp files to get cleaned during
        the early boot process. Use /run/somedir instead to avoid race
        LP:1707222.

.. warning::
       Existing files will be overridden."""
    ),
    "distros": ["all"],
    "examples": [
        dedent(
            """\
        # Write out base64 encoded content to /etc/sysconfig/selinux
        write_files:
        - encoding: b64
          content: CiMgVGhpcyBmaWxlIGNvbnRyb2xzIHRoZSBzdGF0ZSBvZiBTRUxpbnV4...
          owner: root:root
          path: /etc/sysconfig/selinux
          permissions: '0644'
        """
        ),
        dedent(
            """\
        # Appending content to an existing file
        write_files:
        - content: |
            15 * * * * root ship_logs
          path: /etc/crontab
          append: true
        """
        ),
        dedent(
            """\
        # Provide gziped binary content
        write_files:
        - encoding: gzip
          content: !!binary |
              H4sIAIDb/U8C/1NW1E/KzNMvzuBKTc7IV8hIzcnJVyjPL8pJ4QIA6N+MVxsAAAA=
          path: /usr/bin/hello
          permissions: '0755'
        """
        ),
        dedent(
            """\
        # Create an empty file on the system
        write_files:
        - path: /root/CLOUD_INIT_WAS_HERE
        """
        ),
        dedent(
            """\
        # Defer writing the file until after the package (Nginx) is
        # installed and its user is created alongside
        write_files:
        - path: /etc/nginx/conf.d/example.com.conf
          content: |
            server {
                server_name example.com;
                listen 80;
                root /var/www;
                location / {
                    try_files $uri $uri/ $uri.html =404;
                }
            }
          owner: 'nginx:nginx'
          permissions: '0640'
          defer: true
        """
        ),
    ],
    "frequency": PER_INSTANCE,
    "activate_by_schema_keys": ["write_files"],
}

__doc__ = get_meta_doc(meta)

def handle(
    name: str, cfg: Config, cloud: Cloud, log: Logger, args: list
) -> None:
    file_list = cfg.get("write_files", [])
    filtered_files = [
        f
        for f in file_list
        if not util.get_cfg_option_bool(f, "defer", DEFAULT_DEFER)
    ]
    if not filtered_files:
        log.debug(
            "Skipping module named %s,"
            " no/empty 'write_files' key in configuration",
            name,
        )
        return
    write_files(name, filtered_files, cloud.distro.default_owner)

def canonicalize_extraction(encoding_type):
    if not encoding_type:
        encoding_type = ""
    encoding_type = encoding_type.lower().strip()
    if encoding_type in ["gz", "gzip"]:
        return ["application/x-gzip"]
    if encoding_type in ["gz+base64", "gzip+base64", "gz+b64", "gzip+b64"]:
        return ["application/base64", "application/x-gzip"]
    # Yaml already encodes binary data as base64 if it is given to the
    # yaml file as binary, so those will be automatically decoded for you.
    # But the above b64 is just for people that are more 'comfortable'
    # specifing it manually (which might be a possibility)
    if encoding_type in ["b64", "base64"]:
        return ["application/base64"]
    if encoding_type == TEXT_PLAIN_ENC:
        return [TEXT_PLAIN_ENC]
    if encoding_type:
        LOG.warning(
            "Unknown encoding type %s, assuming %s",
            encoding_type,
            TEXT_PLAIN_ENC,
        )
    return [TEXT_PLAIN_ENC]

def write_files(name, files, owner: str):
    if not files:
        return

for (i, f_info) in enumerate(files):
        path = f_info.get("path")
        if not path:
            LOG.warning(
                "No path provided to write for entry %s in module %s",
                i + 1,
                name,
            )
            continue
        path = os.path.abspath(path)
        extractions = canonicalize_extraction(f_info.get("encoding"))
        contents = extract_contents(f_info.get("content", ""), extractions)
        (u, g) = util.extract_usergroup(f_info.get("owner", owner))
        perms = decode_perms(f_info.get("permissions"), DEFAULT_PERMS)
        omode = "ab" if util.get_cfg_option_bool(f_info, "append") else "wb"
        util.write_file(
            path, contents, omode=omode, mode=perms, user=u, group=g
        )
        util.chownbyname(path, u, g)

def decode_perms(perm, default):
    if perm is None:
        return default
    try:
        if isinstance(perm, (int, float)):
            # Just 'downcast' it (if a float)
            return int(perm)
        else:
            # Force to string and try octal conversion
            return int(str(perm), 8)
    except (TypeError, ValueError):
        reps = []
        for r in (perm, default):
            try:
                reps.append("%o" % r)
            except TypeError:
                reps.append("%r" % r)
        LOG.warning("Undecodable permissions %s, returning default %s", *reps)
        return default

def extract_contents(contents, extraction_types):
    result = contents
    for t in extraction_types:
        if t == "application/x-gzip":
            result = util.decomp_gzip(result, quiet=False, decode=False)
        elif t == "application/base64":
            result = base64.b64decode(result)
        elif t == TEXT_PLAIN_ENC:
            pass
    return result

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