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# coding=utf-8
#
# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2021 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENCE.TXT
#
from __future__ import absolute_import
import os
from clcommon.const import Feature
from clcommon.utils import ExternalProgramFailed
from clconfig.cagefs_statistics_config import check_cagefs_initialized
from cllimits.cagefs_lib import CageFs, CageFsException
from clwizard.constants import MODULES_LOGS_DIR
from clwizard.exceptions import InstallationFailedException
from .base import WizardInstaller
class CagefsInstaller(WizardInstaller):
LOG_FILE = os.path.join(MODULES_LOGS_DIR, 'cagefs.log')
_REQUIRED_CL_COMPONENT_SUPPORT = Feature.CAGEFS
def __init__(self):
super(CagefsInstaller, self).__init__()
self.cgfs = CageFs(logger=self.app_logger)
def _enable_existing_users(self):
"""
Enable all users statuses and after it toggle to initial mode
:return:
"""
initial_mode = self.cgfs.get_user_mode()
out = self.cgfs.set_enabled_mode()
self.app_logger.info("Cagefs users status was updated to enabled: %s", out)
if initial_mode == 'Disable All':
self.cgfs.toggle_user_mode()
def _set_enabled_mode(self):
mode = self.cgfs.get_user_mode()
self.app_logger.info("Current mode is: %s", mode)
if mode == 'Disable All':
self.app_logger.info("Try to set mode to Enable all")
self.cgfs.toggle_user_mode()
self.app_logger.info("Mode was toggled to Enable all")
def _install_cagefs_package(self):
if not self._is_package_installed('cagefs'):
try:
self._install_package('cagefs')
except ExternalProgramFailed as err:
raise InstallationFailedException() from err
else:
self.app_logger.info("Skip package installation, it is already installed")
def _initialize_cagefs(self):
if not check_cagefs_initialized():
try:
out = self.cgfs.initialize_cagefs()
self.app_logger.info("Cagefs was initialized: %s", out)
except CageFsException as err:
self.app_logger.error("Cagefs initialization failed with error: %s", str(err))
raise InstallationFailedException() from err
else:
self.app_logger.info("Initializing was skipped, cagefs was already initialized")
def _enable_cagefs(self):
try:
out = self.cgfs.enable_cagefs()
self.app_logger.info("Cagefs was enabled, ready for configuration\n %s", out)
except CageFsException as err:
raise InstallationFailedException() from err
def run_installation(self, options):
self._install_cagefs_package()
self._initialize_cagefs()
self._enable_cagefs()
try:
if options['enable_for_existing_users']:
self._enable_existing_users()
if options['enable_for_new_users']:
self._set_enabled_mode()
except CageFsException as err:
self.app_logger.error("Can`t configure options: %s", str(err))
raise InstallationFailedException() from err
@classmethod
def supported_options(cls):
return {'enable_for_existing_users', 'enable_for_new_users'}
def initial_status(self):
try:
enabled_for_new = self.cgfs.get_user_mode() == 'Enable All'
except CageFsException:
self.app_logger.warning(
'Unable to detect cagefs mode, assuming that it is "Disable All"'
)
enabled_for_new = False
return {
# we always allow user to initialize cagefs
# bool needed to replace None with False
# None is given when cagefs is not installed
'already_configured': bool(check_cagefs_initialized()),
'options': {'enable_for_new_users': enabled_for_new},
}
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