17223 FIX HW/SW Inventory: Fix sporadic disappearing

SUP-20276
SUP-22016

Change-Id: Ia8ebb2b8f4bc3b6df5adff6a897f298960b57c5f

.werks/17223.md

@@ -0,0 +1,21 @@
+[//]: # (werk v2)
+# HW/SW Inventory: Fix sporadic disappearing
+
+key        | value
+---------- | ---
+date       | 2025-01-13T17:53:39+00:00
+version    | 2.3.0p25
+class      | fix
+edition    | cre
+component  | inv
+level      | 1
+compatible | yes
+
+This change affects customers, which are monitoring hosts on a remote site.
+Previously, the HW/SW inventory would sporadically disappear on the central site, even though it was shown correctly on the remote site.
+This was due to an incorrect implementation of the diskspace utility.
+This implementation assumed that the inventory data was only needed on the remote site.
+With this change, diskspace will only consider deleting the inventory data of hosts, which have been deleted.
+
+The faulty behaviour was introduced in [#Werk 13422](https://checkmk.com/werk/13242).
+A similar, but different issue, is addressed in [#Werk 17222](https://checkmk.com/werk/17222).

cmk/base/automations/check_mk.py

@@ -1538,8 +1538,6 @@ def _single_file_paths(self, hostname: HostName) -> list[str]:
             f"{counters_dir}/{hostname}",
             f"{tcp_cache_dir}/{hostname}",
             f"{var_dir}/persisted/{hostname}",
-            f"{var_dir}/inventory/{hostname}",
-            f"{var_dir}/inventory/{hostname}.gz",
         ]
 
     def _delete_host_files(self, hostname: HostName) -> None: