1 files changed, 23 insertions, 0 deletions
diff --git a/src/pybind/mgr/mirroring/fs/dir_map/create.py b/src/pybind/mgr/mirroring/fs/dir_map/create.py
new file mode 100644
index 000000000..963dfe915
--- /dev/null
+++ b/src/pybind/mgr/mirroring/fs/dir_map/create.py
@@ -0,0 +1,23 @@
+import errno
+import logging
+
+import rados
+
+from ..exception import MirrorException
+from ..utils import MIRROR_OBJECT_NAME
+
+log = logging.getLogger(__name__)
+
+def create_mirror_object(rados_inst, pool_id):
+    log.info(f'creating mirror object: {MIRROR_OBJECT_NAME}')
+    try:
+        with rados_inst.open_ioctx2(pool_id) as ioctx:
+            with rados.WriteOpCtx() as write_op:
+                write_op.new(rados.LIBRADOS_CREATE_EXCLUSIVE)
+                ioctx.operate_write_op(write_op, MIRROR_OBJECT_NAME)
+    except rados.Error as e:
+        if e.errno == errno.EEXIST:
+            # be graceful
+            return -e.errno
+        log.error(f'failed to create mirror object: {e}')
+        raise Exception(-e.args[0])