func()

in pkg/metrics/collector/conntrack.go [200:225]

• 24 lines of code
• 4 McCabe index (conditional complexity)

func (c *conntrackCollector) Update(ch chan<- prometheus.Metric) error {
	value, err := readUintFromFile(procFilePath("sys/net/netfilter/nf_conntrack_count"))
	if err != nil {
		return nil
	}
	ch <- prometheus.MustNewConstMetric(conntrackEntriesDesc, prometheus.GaugeValue, float64(value))

	size, err := readUintFromFile(procFilePath("sys/net/netfilter/nf_conntrack_max"))
	if err != nil {
		return nil
	}
	ch <- prometheus.MustNewConstMetric(conntrackSizeDesc, prometheus.GaugeValue, float64(size))

	stats, err := getConntrackStats(procFilePath("net/stat/nf_conntrack"))
	if err != nil {
		return err
	}
	ch <- prometheus.MustNewConstMetric(conntrackErrorCountDesc, prometheus.CounterValue, float64(stats.found), "found")
	ch <- prometheus.MustNewConstMetric(conntrackErrorCountDesc, prometheus.CounterValue, float64(stats.invalid), "invalid")
	ch <- prometheus.MustNewConstMetric(conntrackErrorCountDesc, prometheus.CounterValue, float64(stats.insert), "insert")
	ch <- prometheus.MustNewConstMetric(conntrackErrorCountDesc, prometheus.CounterValue, float64(stats.insertFailed), "insert_failed")
	ch <- prometheus.MustNewConstMetric(conntrackErrorCountDesc, prometheus.CounterValue, float64(stats.drop), "drop")
	ch <- prometheus.MustNewConstMetric(conntrackErrorCountDesc, prometheus.CounterValue, float64(stats.earlyDrop), "early_drop")
	ch <- prometheus.MustNewConstMetric(conntrackErrorCountDesc, prometheus.CounterValue, float64(stats.searchRestart), "search_restart")
	return nil
}