Merge "Unmount Ceph OSD disks as part of destroy"

releasenotes/notes/unmount-ceph-osds-43b7b59685bff5b4.yaml

+---
+features:
+  - Unmount Ceph OSD disks as part of 'kolla-ansible destroy'

tools/cleanup-host

@@ -37,6 +37,11 @@ fi
 echo "Creating a fstab backup..."
 sudo cp /etc/fstab /etc/fstab_backup
 
+echo "Unmounting Ceph OSD disks"
+for mount in $(mount | awk '/\/var\/lib\/ceph/ { print $3 }'); do
+    umount $mount
+done
+
 echo "Removing ceph references from fstab..."
 sudo sed -i '/\/var\/lib\/ceph\/osd\//d' /etc/fstab