Remove schedule-related metrics on schedule delete

Signed-off-by: Nilesh Akhade <nakhade@catalogicsoftware.com>

changelogs/unreleased/6715-nilesh-akhade

@@ -0,0 +1 @@
+Remove schedule-related metrics on schedule delete

pkg/controller/schedule_controller.go

@@ -94,6 +94,7 @@ func (c *scheduleReconciler) Reconcile(ctx context.Context, req ctrl.Request) (c
 	if err := c.Get(ctx, req.NamespacedName, schedule); err != nil {
 		if apierrors.IsNotFound(err) {
 			log.WithError(err).Error("schedule not found")
+			c.metrics.RemoveSchedule(req.Name)
 			return ctrl.Result{}, nil
 		}
 		return ctrl.Result{}, errors.Wrapf(err, "error getting schedule %s", req.String())

pkg/metrics/metrics.go

@@ -505,6 +505,88 @@ func (m *ServerMetrics) InitSchedule(scheduleName string) {
 	}
 }
 
+// RemoveSchedule removes metrics associated with a specified schedule.
+func (m *ServerMetrics) RemoveSchedule(scheduleName string) {
+	if g, ok := m.metrics[backupTarballSizeBytesGauge].(*prometheus.GaugeVec); ok {
+		g.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupAttemptTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupSuccessTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupPartialFailureTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupFailureTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupValidationFailureTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if h, ok := m.metrics[backupDurationSeconds].(*prometheus.HistogramVec); ok {
+		h.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupDeletionAttemptTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupDeletionSuccessTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupDeletionFailureTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if g, ok := m.metrics[backupLastSuccessfulTimestamp].(*prometheus.GaugeVec); ok {
+		g.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupItemsTotalGauge].(*prometheus.GaugeVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupItemsErrorsGauge].(*prometheus.GaugeVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupWarningTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[backupLastStatus].(*prometheus.GaugeVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[restoreAttemptTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[restorePartialFailureTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[restoreFailedTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[restoreSuccessTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[restoreValidationFailedTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[volumeSnapshotSuccessTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[volumeSnapshotAttemptTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[volumeSnapshotFailureTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName)
+	}
+	if c, ok := m.metrics[csiSnapshotAttemptTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName, "")
+	}
+	if c, ok := m.metrics[csiSnapshotSuccessTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName, "")
+	}
+	if c, ok := m.metrics[csiSnapshotFailureTotal].(*prometheus.CounterVec); ok {
+		c.DeleteLabelValues(scheduleName, "")
+	}
+}
+
 // InitSchedule initializes counter metrics for a node.
 func (m *ServerMetrics) InitMetricsForNode(node string) {
 	if c, ok := m.metrics[podVolumeBackupEnqueueTotal].(*prometheus.CounterVec); ok {