1 files changed, 49 insertions, 0 deletions
diff --git a/lib/ansible/module_utils/facts/system/chroot.py b/lib/ansible/module_utils/facts/system/chroot.py
new file mode 100644
index 0000000..94138a0
--- /dev/null
+++ b/lib/ansible/module_utils/facts/system/chroot.py
@@ -0,0 +1,49 @@
+# 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)}