From 6ef122ad49f43e3a22cde5cb6fdaefd947670136 Mon Sep 17 00:00:00 2001
From: Amit Matsil <Amatsil2@gmail.com>
Date: Thu, 30 May 2024 02:55:18 +0300
Subject: [PATCH] fix(backup): backup name regex (#970)

Change the regular expression to match the format specified in the Bigtable Admin API documentation: https://cloud.google.com/bigtable/docs/reference/admin/rest/v2/projects.instances.clusters.backups/create
---
 google/cloud/bigtable/backup.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/google/cloud/bigtable/backup.py b/google/cloud/bigtable/backup.py
index 6986d730a..5b2cafc54 100644
--- a/google/cloud/bigtable/backup.py
+++ b/google/cloud/bigtable/backup.py
@@ -28,7 +28,7 @@
     r"^projects/(?P<project>[^/]+)/"
     r"instances/(?P<instance_id>[a-z][-a-z0-9]*)/"
     r"clusters/(?P<cluster_id>[a-z][-a-z0-9]*)/"
-    r"backups/(?P<backup_id>[a-z][a-z0-9_\-]*[a-z0-9])$"
+    r"backups/(?P<backup_id>[_a-zA-Z0-9][-_.a-zA-Z0-9]*)$"
 )
 
 _TABLE_NAME_RE = re.compile(