From d4a02f73b5ce1a6262cb3752e1ed6bcd4e3c672f Mon Sep 17 00:00:00 2001
From: Dan Helfman <witten@torsion.org>
Date: Thu, 28 Nov 2024 22:18:44 -0800
Subject: [PATCH] Create Btrfs snapshots as read-only (#251).

---
 borgmatic/hooks/data_source/btrfs.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/borgmatic/hooks/data_source/btrfs.py b/borgmatic/hooks/data_source/btrfs.py
index 0f7f46de..169f3061 100644
--- a/borgmatic/hooks/data_source/btrfs.py
+++ b/borgmatic/hooks/data_source/btrfs.py
@@ -134,6 +134,7 @@ def snapshot_subvolume(btrfs_command, subvolume_path, snapshot_path):  # pragma:
             btrfs_command,
             'subvolume',
             'snapshot',
+            '-r',  # Read-only,
             subvolume_path,
             snapshot_path,
         ),