# Copyright (c) 2017 Ansible Project # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) from __future__ import (absolute_import, division, print_function) __metaclass__ = type import os import ansible.module_utils.compat.typing as t from ansible.module_utils.facts.collector import BaseFactCollector def is_chroot(module=None): is_chroot = None if os.environ.get('debian_chroot', False): is_chroot = True else: my_root = os.stat('/') try: # check if my file system is the root one proc_root = os.stat('/proc/1/root/.') is_chroot = my_root.st_ino != proc_root.st_ino or my_root.st_dev != proc_root.st_dev except Exception: # I'm not root or no proc, fallback to checking it is inode #2 fs_root_ino = 2 if module is not None: stat_path = module.get_bin_path('stat') if stat_path: cmd = [stat_path, '-f', '--format=%T', '/'] rc, out, err = module.run_command(cmd) if 'btrfs' in out: fs_root_ino = 256 elif 'xfs' in out: fs_root_ino = 128 is_chroot = (my_root.st_ino != fs_root_ino) return is_chroot class ChrootFactCollector(BaseFactCollector): name = 'chroot' _fact_ids = set(['is_chroot']) # type: t.Set[str] def collect(self, module=None, collected_facts=None): return {'is_chroot': is_chroot(module)}