bundles/backup-server: auto-import pool after decrypting

bundles/backup-server/metadata.py

@@ -74,6 +74,12 @@ def zfs_pool(metadata):
                         ],
                     },
                     'needs': unlock_actions,
+                    # That's a bit hacky. We do it this way to auto-import
+                    # the pool after decrypting the devices. Otherwise
+                    # the pool wouldn't exist, which leads to bundlewrap
+                    # trying to re-create the pool.
+                    # Also, -N to not auto-mount anything.
+                    'unless': 'zpool import -N backups',
                 },
             },
         }