Add support for zfs-autosnapshot format

zfs_replication_exporter.go

@@ -44,9 +44,13 @@ var (
 	//   @zfs-auto-snap_hourly-2023-01-14-19h00U
 	//   @zfs-auto-snap_weekly-2022-12-19-08h00U
 	//   @zfs-auto-snap_monthly-2022-12-01-08h00U
-	linuxSnapshotPattern  = regexp.MustCompile(`^[^@]+@zfs-auto-snap_(?:frequent|daily|hourly|weekly|monthly)-(\d{4}-\d{2}-\d{2}-\d{2}h\d{2}U)$`)
+	linuxSnapshotPattern = regexp.MustCompile(`^[^@]+@zfs-auto-snap_(?:frequent|daily|hourly|weekly|monthly)-(\d{4}-\d{2}-\d{2}-\d{2}h\d{2}U)$`)
+	// @mom-20230812163001
+	autosnapshotPattern = regexp.MustCompile(`^[^@]+@[^-]+-(\d{14})$`)
+
 	freenasSnapshotFormat = "20060102.1504"
 	linuxSnapshotFormat   = "2006-01-02-15h04U"
+	autosnapshotFormat    = "20060102150405"
 
 	fetchRequestDurationMetric = prometheus.NewGauge(prometheus.GaugeOpts{
 		Name: "ssh_fetch_duration_seconds",
@@ -186,6 +190,21 @@ func fetchSnapshotStats(host string, c *ssh.Client) (snapshotStats, error) {
 				stats[name].Timestamp = t
 			}
 		}
+		if m := autosnapshotPattern.FindStringSubmatch(l); len(m) == 2 {
+			foundSnapshot = true
+			t, err := time.Parse(autosnapshotFormat, m[1])
+			if err != nil {
+				glog.Errorf("[%s] Malformed time in autosnapshot %q: %v", host, m[1], err)
+				continue
+			}
+			glog.V(3).Infof("filesystem: %s timestamp %v", l, t)
+			stats[name].LinuxCounts++
+			snapshotTime := stats[name].Timestamp
+			glog.V(3).Infof("snapshotTime.Before(t) = %v snapshotTime: %v t: %v", snapshotTime.Before(t), snapshotTime, t)
+			if snapshotTime.Before(t) {
+				stats[name].Timestamp = t
+			}
+		}
 		if !foundSnapshot {
 			glog.V(3).Infof("[%s] Skipping snapshot with non-conforming timestamp %q", host, l)
 		}