feat: config for pgprobackup plugin

Author: alexander popov

packaging/conf/example.conf

@@ -185,4 +185,16 @@ interval = 500
 # If pgsql.prepared.oldest exceeds max_prepared_transaction_time the trigger fires.
 [preparedtransaction]
 max_prepared_transaction_time = 60
-interval = 60
+interval = 60
+
+# Get size of backup catalogs, which using pg_probackup to store all WAL and backup files
+# and get error if some backup has bad status (ERROR,CORRUPT,ORPHAN).
+# how it works: mamonsu run command: pg_probackup  show -B backup_dir1.
+# when status is ERROR,CORRUPT,ORPHAN,
+# как это работает: mamonsu запускает команду pg_probackup  show -B backup_dir1,
+# если в выводе, в колонке status присутствует ERROR,CORRUPT,ORPHAN, срабатывает триггер.
+[pgprobackup]
+enabled = false
+interval = 300
+backup_dirs = /backup_dir1,/backup_dir2
+pg_probackup_path = /usr/bin/pg_probackup-11