Remove central backup path when subcloud deleted

This commit removes the subcloud directory after executing
the dcmanager subcloud delete.

Test Plan:
1. Create central backup
- dcmanager subcloud-backup create --subcloud <subcloud>
2. Delete subcloud with backup
- dcmanager subcloud delete <subcloud>
3. Check if the subcloud central backup directory was removed
- /opt/dc-vault/backups/<subcloud> deleted

Story: 2010116
Task: 46857

Signed-off-by: Hugo Brito <hugo.brito@windriver.com>
Change-Id: Ie3270add61bc0e8e2b9ef2ee3d78c807a988103e

distributedcloud/dcmanager/manager/subcloud_manager.py

@@ -24,6 +24,7 @@ import json
 import keyring
 import netaddr
 import os
+import shutil
 import threading
 import time
 
@@ -1625,9 +1626,21 @@ class SubcloudManager(manager.Manager):
         # Delete the subcloud intermediate certificate
         SubcloudManager._delete_subcloud_cert(subcloud.name)
 
+        # Delete the subcloud backup path
+        self._delete_subcloud_backup_data(subcloud.name)
+
         # Regenerate the addn_hosts_dc file
         self._create_addn_hosts_dc(context)
 
+    @staticmethod
+    def _delete_subcloud_backup_data(subcloud_name):
+        try:
+            backup_path = os.path.join(CENTRAL_BACKUP_DIR, subcloud_name)
+            if os.path.exists(backup_path):
+                shutil.rmtree(backup_path)
+        except Exception as e:
+            LOG.exception(e)
+
     def delete_subcloud(self, context, subcloud_id):
         """Delete subcloud and notify orchestrators.