Added reset before collecting new metrics to prevent dangling metrics

metrics/pve_node_container_collector.go

@@ -161,6 +161,20 @@ func (c *PveContainerCollector) CollectMetrics() error {
 		return err
 	}
 
+	c.state.Reset()
+	c.cpu.Reset()
+	c.memBytes.Reset()
+	c.diskMax.Reset()
+	c.uptime.Reset()
+	c.cpuUsage.Reset()
+	c.memBytesUsed.Reset()
+	c.netReceive.Reset()
+	c.netTransmit.Reset()
+	c.diskRead.Reset()
+	c.diskWrite.Reset()
+	c.disk.Reset()
+	c.swap.Reset()
+
 	for _, node := range cluster.NodeStatuses {
 		containers, err := c.apiClient.GetNodeContainerList(node.Name)
 		if err != nil {