feat: publish Automated Backups protos

PiperOrigin-RevId: 620381983

google/bigtable/admin/v2/table.proto

@@ -143,6 +143,19 @@ message Table {
     FULL = 4;
   }
 
+  // Defines an automated backup policy for a table
+  message AutomatedBackupPolicy {
+    // Required. How long the automated backups should be retained. The only
+    // supported value at this time is 3 days.
+    google.protobuf.Duration retention_period = 1
+        [(google.api.field_behavior) = REQUIRED];
+
+    // Required. How frequently automated backups should occur. The only
+    // supported value at this time is 24 hours.
+    google.protobuf.Duration frequency = 2
+        [(google.api.field_behavior) = REQUIRED];
+  }
+
   // The unique name of the table. Values are of the form
   // `projects/{project}/instances/{instance}/tables/[_a-zA-Z0-9][-_.a-zA-Z0-9]*`.
   // Views: `NAME_ONLY`, `SCHEMA_VIEW`, `REPLICATION_VIEW`, `FULL`
@@ -185,6 +198,12 @@ message Table {
   //
   // Note one can still delete the data stored in the table through Data APIs.
   bool deletion_protection = 9;
+
+  oneof automated_backup_config {
+    // If specified, automated backups are enabled for this table.
+    // Otherwise, automated backups are disabled.
+    AutomatedBackupPolicy automated_backup_policy = 13;
+  }
 }
 
 // AuthorizedViews represent subsets of a particular Cloud Bigtable table. Users