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collector: add openbsd support for netdev

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This commit is contained in:
Nick Owens 2015-11-02 20:31:34 -08:00
commit 3eb2d6625a
4 changed files with 158 additions and 103 deletions
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59
collector/netdev_freebsd.go
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@ -17,10 +17,10 @@ package collector
import (
"errors"
"fmt"
"strconv"
"regexp"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/log"
)
/*
@ -33,52 +33,7 @@ import (
*/
import "C"
type netDevCollector struct {
subsystem string
metricDescs map[string]*prometheus.Desc
}
func init() {
Factories["netdev"] = NewNetDevCollector
}
// Takes a prometheus registry and returns a new Collector exposing
// Network device stats.
func NewNetDevCollector() (Collector, error) {
return &netDevCollector{
subsystem: "network",
metricDescs: map[string]*prometheus.Desc{},
}, nil
}
func (c *netDevCollector) Update(ch chan<- prometheus.Metric) (err error) {
netDev, err := getNetDevStats()
if err != nil {
return fmt.Errorf("couldn't get netstats: %s", err)
}
for dev, devStats := range netDev {
for key, value := range devStats {
desc, ok := c.metricDescs[key]
if !ok {
desc = prometheus.NewDesc(
prometheus.BuildFQName(Namespace, c.subsystem, key),
fmt.Sprintf("%s from getifaddrs().", key),
[]string{"device"},
nil,
)
c.metricDescs[key] = desc
}
v, err := strconv.ParseFloat(value, 64)
if err != nil {
return fmt.Errorf("invalid value %s in netstats: %s", value, err)
}
ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, v, dev)
}
}
return nil
}
func getNetDevStats() (map[string]map[string]string, error) {
func getNetDevStats(ignore *regexp.Regexp) (map[string]map[string]string, error) {
netDev := map[string]map[string]string{}
var ifap, ifa *C.struct_ifaddrs
@ -89,6 +44,12 @@ func getNetDevStats() (map[string]map[string]string, error) {
for ifa = ifap; ifa != nil; ifa = ifa.ifa_next {
if ifa.ifa_addr.sa_family == C.AF_LINK {
dev := C.GoString(ifa.ifa_name)
if ignore.MatchString(dev) {
log.Debugf("Ignoring device: %s", dev)
continue
}
devStats := map[string]string{}
data := (*C.struct_if_data)(ifa.ifa_data)
@ -102,7 +63,7 @@ func getNetDevStats() (map[string]map[string]string, error) {
devStats["transmit_multicast"] = strconv.Itoa(int(data.ifi_omcasts))
devStats["receive_drop"] = strconv.Itoa(int(data.ifi_iqdrops))
devStats["transmit_drop"] = strconv.Itoa(int(data.ifi_oqdrops))
netDev[C.GoString(ifa.ifa_name)] = devStats
netDev[dev] = devStats
}
}