search for orphan disks

inc/orphan-disks.py

@@ -30,6 +30,8 @@ def enabled(value):
 def references(root, nodes, guests):
     """Read pmxcfs on this host, including offline guests and all config sections."""
     refs, errors, seen, contents = {}, [], set(), {}
+    guest_names = {(guest['type'], str(guest['vmid'])): guest.get('name')
+                   for guest in guests}
     for node in nodes:
         for kind, directory in [('qemu', 'qemu-server'), ('lxc', 'lxc')]:
             folder = root / node['node'] / directory
@@ -48,6 +50,18 @@ def references(root, nodes, guests):
                     continue
                 contents[str(path)] = content
                 seen.add((node['node'], kind, path.stem))
+                name = guest_names.get((kind, path.stem))
+                name_key = 'name' if kind == 'qemu' else 'hostname'
+                for line in content.splitlines():
+                    line = line.strip()
+                    if line.startswith('['):
+                        break
+                    key, sep, value = line.partition(':')
+                    if sep and key == name_key and value.strip():
+                        name = value.strip()
+                        break
+                guest_id = f"{'VM' if kind == 'qemu' else 'LXC'} {path.stem}"
+                guest_label = f'{name} ({guest_id})' if name else f'{guest_id} (name unavailable)'
                 section = 'current'
                 for line in content.splitlines():
                     line = line.strip()
@@ -61,7 +75,7 @@ def references(root, nodes, guests):
                         continue
                     for volume in VOLUME.findall(value):
                         refs.setdefault(volume, []).append({
-                            'node': node['node'], 'guest': f'{kind} {path.stem}',
+                            'node': node['node'], 'guest': guest_label,
                             'unused': bool(re.fullmatch(r'unused\d+', key)) and section == 'current',
                             'section': section,
                         })