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Filename : cc_scripts_per_once.py
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# Copyright (C) 2011 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>
#
# This file is part of cloud-init. See LICENSE file for license information.
"""Scripts Per Once: Run one time scripts"""

import os
from logging import Logger

from cloudinit import subp
from cloudinit.cloud import Cloud
from cloudinit.config import Config
from cloudinit.config.schema import MetaSchema, get_meta_doc
from cloudinit.distros import ALL_DISTROS
from cloudinit.settings import PER_ONCE

frequency = PER_ONCE
MODULE_DESCRIPTION = """\
Any scripts in the ``scripts/per-once`` directory on the datasource will be run
only once. Changes to the instance will not force a re-run. The only way to
re-run these scripts is to run the clean subcommand and reboot. Scripts will
be run in alphabetical order. This module does not accept any config keys.
"""

meta: MetaSchema = {
    "id": "cc_scripts_per_once",
    "name": "Scripts Per Once",
    "title": "Run one time scripts",
    "description": MODULE_DESCRIPTION,
    "distros": [ALL_DISTROS],
    "frequency": frequency,
    "examples": [],
    "activate_by_schema_keys": [],
}

__doc__ = get_meta_doc(meta)

SCRIPT_SUBDIR = "per-once"


def handle(
    name: str, cfg: Config, cloud: Cloud, log: Logger, args: list
) -> None:
    # Comes from the following:
    # https://forums.aws.amazon.com/thread.jspa?threadID=96918
    runparts_path = os.path.join(cloud.get_cpath(), "scripts", SCRIPT_SUBDIR)
    try:
        subp.runparts(runparts_path)
    except Exception:
        log.warning(
            "Failed to run module %s (%s in %s)",
            name,
            SCRIPT_SUBDIR,
            runparts_path,
        )
        raise


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