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Directory : /snap/core22/2139/lib/python3/dist-packages/cloudinit/

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Current File : /snap/core22/2139/lib/python3/dist-packages/cloudinit/features.py

# This file is part of cloud-init. See LICENSE file for license information.
"""
Feature flags are used as a way to easily toggle configuration
**at build time**. They are provided to accommodate feature deprecation and
downstream configuration changes.

Currently used upstream values for feature flags are set in
``cloudinit/features.py``. Overrides to these values should be
patched directly (e.g., via quilt patch) by downstreams.

Each flag should include a short comment regarding the reason for
the flag and intended lifetime.

Tests are required for new feature flags, and tests must verify
all valid states of a flag, not just the default state.
"""
import re
import sys
from typing import Dict

ERROR_ON_USER_DATA_FAILURE = True
"""
If there is a failure in obtaining user data (i.e., #include or
decompress fails) and ``ERROR_ON_USER_DATA_FAILURE`` is ``False``,
cloud-init will log a warning and proceed.  If it is ``True``,
cloud-init will instead raise an exception.

As of 20.3, ``ERROR_ON_USER_DATA_FAILURE`` is ``True``.

(This flag can be removed after Focal is no longer supported.)
"""


ALLOW_EC2_MIRRORS_ON_NON_AWS_INSTANCE_TYPES = False
"""
When configuring apt mirrors, if
``ALLOW_EC2_MIRRORS_ON_NON_AWS_INSTANCE_TYPES`` is ``True`` cloud-init
will detect that a datasource's ``availability_zone`` property looks
like an EC2 availability zone and set the ``ec2_region`` variable when
generating mirror URLs; this can lead to incorrect mirrors being
configured in clouds whose AZs follow EC2's naming pattern.

As of 20.3, ``ALLOW_EC2_MIRRORS_ON_NON_AWS_INSTANCE_TYPES`` is ``False``
so we no longer include ``ec2_region`` in mirror determination on
non-AWS cloud platforms.

If the old behavior is desired, users can provide the appropriate
mirrors via :py:mod:`apt: <cloudinit.config.cc_apt_configure>`
directives in cloud-config.
"""


EXPIRE_APPLIES_TO_HASHED_USERS = False
"""
If ``EXPIRE_APPLIES_TO_HASHED_USERS`` is True, then when expire is set true
in cc_set_passwords, hashed passwords will be expired. Previous to 22.3,
only non-hashed passwords were expired.

(This flag can be removed after Jammy is no longer supported.)
"""

NETPLAN_CONFIG_ROOT_READ_ONLY = True
"""
If ``NETPLAN_CONFIG_ROOT_READ_ONLY`` is True, then netplan configuration will
be written as a single root read-only file /etc/netplan/50-cloud-init.yaml.
This prevents wifi passwords in network v2 configuration from being
world-readable. Prior to 23.1, netplan configuration is world-readable.

(This flag can be removed after Jammy is no longer supported.)
"""


NOCLOUD_SEED_URL_APPEND_FORWARD_SLASH = True
"""
Append a forward slash '/' if NoCloud seedurl does not end with either
a querystring or forward slash. Prior to 23.1, nocloud seedurl would be used
unaltered, appending meta-data, user-data and vendor-data to without URL path
separators.

(This flag can be removed when Jammy is no longer supported.)
"""

APT_DEB822_SOURCE_LIST_FILE = False
"""
On Debian and Ubuntu systems, cc_apt_configure will write a deb822 compatible
/etc/apt/sources.list.d/(debian|ubuntu).sources file. When set False, continue
to write /etc/apt/sources.list directly.
"""

MANUAL_NETWORK_WAIT = False
"""
On Ubuntu systems, cloud-init-network.service will start immediately after
cloud-init-local.service and manually wait for network online when necessary.
If False, rely on systemd ordering to ensure network is available before
starting cloud-init-network.service.

Note that in addition to this flag, downstream patches are also likely needed
to modify the systemd unit files.
"""

DEPRECATION_INFO_BOUNDARY = "22.1"
"""
DEPRECATION_INFO_BOUNDARY is used by distros to configure at which upstream
version to start logging deprecations at a level higher than INFO.

The default value "devel" tells cloud-init to log all deprecations higher
than INFO. This value may be overriden by downstreams in order to maintain
stable behavior across releases.

Jsonschema key deprecations and inline logger deprecations include a
deprecated_version key. When the variable below is set to a version,
cloud-init will use that version as a demarcation point. Deprecations which
are added after this version will be logged as at an INFO level. Deprecations
which predate this version will be logged at the higher DEPRECATED level.
Downstreams that want stable log behavior may set the variable below to the
first version released in their stable distro. By doing this, they can expect
that newly added deprecations will be logged at INFO level. The implication of
the different log levels is that logs at DEPRECATED level result in a return
code of 2 from `cloud-init status`.

This may may also be used in some limited cases where new error messages may be
logged which increase the risk of regression in stable downstreams where the
error was previously unreported yet downstream users expected stable behavior
across new cloud-init releases.

format:

<value> :: = <default> | <version>
<default> ::= "devel"
<version> ::= <major> "." <minor> ["." <patch>]

where <major>, <minor>, and <patch> are positive integers
"""


def get_features() -> Dict[str, bool]:
    """Return a dict of applicable features/overrides and their values."""
    return {
        k: getattr(sys.modules["cloudinit.features"], k)
        for k in sys.modules["cloudinit.features"].__dict__.keys()
        if re.match(r"^[_A-Z0-9]+$", k)
    }

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