Update mount.py

new option keep_mountpoint enables keeping the mountpoint with state=absent

plugins/modules/mount.py

@@ -73,7 +73,7 @@ options:
         point will be created.
       - If V(unmounted), the device will be unmounted without changing I(fstab).
       - V(present) only specifies that the device is to be configured in
-        I(fstab) and does not trigger or require a mount.
+        I(fstab) and does not trigger or require a mount. TODO check
       - V(ephemeral) only specifies that the device is to be mounted, without changing
         I(fstab). If it is already mounted, a remount will be triggered.
         This will always return RV(ignore:changed=true). If the mount point O(path)
@@ -87,7 +87,8 @@ options:
         real source. V(absent) does not unmount recursively, and the module will
         fail if multiple devices are mounted on the same mount point. Using
         V(absent) with a mount point that is not registered in the I(fstab) has
-        no effect, use V(unmounted) instead.
+        no effect, use V(unmounted) instead. You can set O(keep_mountpoint) to 
+        True to keep the mountpoint.
       - V(remounted) specifies that the device will be remounted for when you
         want to force a refresh on the mount itself (added in 2.9). This will
         always return RV(ignore:changed=true). If O(opts) is set, the options will be
@@ -132,6 +133,16 @@ options:
         the original file back if you somehow clobbered it incorrectly.
     type: bool
     default: false
+  keep_mountpoint:
+    description:
+    - Change the default behaviour of state=absent by keeping the mountpoint
+    - With keep_mountpoint=true, state=absent is like unmounted plus the
+      fstab update.
+    - Use it if you care about finding original mountpoint content without failing 
+      and want to remove the entry in fstab. If you have no entry to clean in
+      fstab you can use state=unmounted
+    type: bool
+    default: false
 notes:
   - As of Ansible 2.3, the O(name) option has been changed to O(path) as
     default, but O(name) still works as well.
@@ -779,6 +790,7 @@ def main():
             src=dict(type='path'),
             backup=dict(type='bool', default=False),
             state=dict(type='str', required=True, choices=['absent', 'absent_from_fstab', 'mounted', 'present', 'unmounted', 'remounted', 'ephemeral']),
+            keep_mountpoint=dict(type='bool', default=False),
         ),
         supports_check_mode=True,
         required_if=(
@@ -899,6 +911,11 @@ def main():
                     module.fail_json(
                         msg="Error unmounting %s: %s" % (name, msg))
 
+            if os.path.exists(name) and module.params['keep_mountpoint'] is False:
+                try:
+                    os.rmdir(name)
+                except (OSError, IOError) as e:
+                    module.fail_json(msg="Error rmdir %s: %s" % (name, to_native(e)))
     elif state == 'unmounted':
         if ismount(name) or is_bind_mounted(module, linux_mounts, name):
             if not module.check_mode: