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# This file is part of cloud-init. See LICENSE file for license information.
from cloudinit import cloud, distros, helpers
from cloudinit.sources.DataSourceNone import DataSourceNone
def get_cloud(distro=None, paths=None, sys_cfg=None, metadata=None):
"""Obtain a "cloud" that can be used for testing.
Modules take a 'cloud' parameter to call into things that are
datasource/distro specific. In most cases, the specifics of this cloud
implementation aren't needed to test the module, so provide a fake
datasource/distro with stubbed calls to methods that may attempt to
read/write files or shell out. If a specific distro is needed, it can
be passed in as the distro parameter.
"""
paths = paths or helpers.Paths({})
sys_cfg = sys_cfg or {}
cls = distros.fetch(distro) if distro else MockDistro
mydist = cls(distro, sys_cfg, paths)
myds = DataSourceTesting(sys_cfg, mydist, paths)
if metadata:
myds.metadata.update(metadata)
if paths:
paths.datasource = myds
return cloud.Cloud(myds, paths, sys_cfg, mydist, None)
def abstract_to_concrete(abclass):
"""Takes an abstract class and returns a concrete version of it."""
class concreteCls(abclass):
pass
concreteCls.__abstractmethods__ = frozenset()
return type("DummyConcrete" + abclass.__name__, (concreteCls,), {})
class DataSourceTesting(DataSourceNone):
def get_hostname(self, fqdn=False, resolve_ip=False, metadata_only=False):
return "hostname"
def persist_instance_data(self):
return True
@property
def fallback_interface(self):
return None
@property
def cloud_name(self):
return "testing"
class MockDistro(distros.Distro):
# MockDistro is here to test base Distro class implementations
def __init__(self, name="testingdistro", cfg=None, paths=None):
if not cfg:
cfg = {}
if not paths:
paths = {}
super(MockDistro, self).__init__(name, cfg, paths)
def install_packages(self, pkglist):
pass
def set_hostname(self, hostname, fqdn=None):
pass
def uses_systemd(self):
return True
def get_primary_arch(self):
return "i386"
def get_package_mirror_info(self, arch=None, data_source=None):
pass
def apply_network(self, settings, bring_up=True):
return False
def generate_fallback_config(self):
return {}
def apply_network_config(self, netconfig, bring_up=False) -> bool:
return False
def apply_network_config_names(self, netconfig):
pass
def apply_locale(self, locale, out_fn=None):
pass
def set_timezone(self, tz):
pass
def _read_hostname(self, filename, default=None):
raise NotImplementedError()
def _write_hostname(self, hostname, filename):
raise NotImplementedError()
def _read_system_hostname(self):
raise NotImplementedError()
def update_hostname(self, hostname, fqdn, prev_hostname_fn):
pass
def update_etc_hosts(self, hostname, fqdn):
pass
def add_user(self, name, **kwargs):
pass
def add_snap_user(self, name, **kwargs):
return "snap_user"
def create_user(self, name, **kwargs):
return True
def lock_passwd(self, name):
pass
def expire_passwd(self, user):
pass
def set_passwd(self, user, passwd, hashed=False):
return True
def ensure_sudo_dir(self, path, sudo_base="/etc/sudoers"):
pass
def write_sudo_rules(self, user, rules, sudo_file=None):
pass
def create_group(self, name, members=None):
pass
def shutdown_command(self, *, mode, delay, message):
pass
def package_command(self, command, args=None, pkgs=None):
pass
def update_package_sources(self):
return (True, "yay")
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