ceph-volume: allow zapping partitions on multipath devices

ceph-volume refuses to zap a device if it is a partition on a multipath
device due to an overly strict condition. This change ensures that only
full mapper devices (excluding partitions) are blocked from being zapped,
allowing partitions on multipath devices to be processed correctly.

Fixes: https://tracker.ceph.com/issues/70363

Signed-off-by: Guillaume Abrioux <[email protected]>

Author: guits

src/ceph-volume/ceph_volume/devices/lvm/zap.py

@@ -398,7 +398,7 @@ def zap(self) -> None:
         devices = self.args.devices
         for device in devices:
             mlogger.info("Zapping: %s", device.path)
-            if device.is_mapper and not device.is_mpath:
+            if device.is_mapper and not device.is_mpath and not device.is_partition:
                 terminal.error("Refusing to zap the mapper device: {}".format(device))
                 raise SystemExit(1)
             if device.is_lvm_member:

src/ceph-volume/ceph_volume/tests/devices/test_zap.py

@@ -30,7 +30,8 @@ def test_can_not_zap_mapper_device(self, mocked_device, monkeypatch, device_info
             exists=True,
             has_partitions=False,
             has_gpt_headers=False,
-            has_fs=False
+            has_fs=False,
+            is_partition=False
         )
         with pytest.raises(SystemExit):
             lvm.zap.Zap(argv=[device_name]).main()