189 lines
6.1 KiB
Go
189 lines
6.1 KiB
Go
// Copyright 2018 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build !nonetclass
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// +build linux
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package collector
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import (
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"fmt"
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"regexp"
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"github.com/go-kit/kit/log"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/procfs/sysfs"
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"gopkg.in/alecthomas/kingpin.v2"
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)
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var (
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netclassIgnoredDevices = kingpin.Flag("collector.netclass.ignored-devices", "Regexp of net devices to ignore for netclass collector.").Default("^$").String()
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)
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type netClassCollector struct {
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fs sysfs.FS
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subsystem string
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ignoredDevicesPattern *regexp.Regexp
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metricDescs map[string]*prometheus.Desc
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logger log.Logger
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}
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func init() {
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registerCollector("netclass", defaultEnabled, NewNetClassCollector)
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}
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// NewNetClassCollector returns a new Collector exposing network class stats.
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func NewNetClassCollector(logger log.Logger) (Collector, error) {
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fs, err := sysfs.NewFS(*sysPath)
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if err != nil {
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return nil, fmt.Errorf("failed to open sysfs: %w", err)
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}
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pattern := regexp.MustCompile(*netclassIgnoredDevices)
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return &netClassCollector{
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fs: fs,
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subsystem: "network",
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ignoredDevicesPattern: pattern,
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metricDescs: map[string]*prometheus.Desc{},
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logger: logger,
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}, nil
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}
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func (c *netClassCollector) Update(ch chan<- prometheus.Metric) error {
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netClass, err := c.getNetClassInfo()
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if err != nil {
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return fmt.Errorf("could not get net class info: %w", err)
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}
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for _, ifaceInfo := range netClass {
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upDesc := prometheus.NewDesc(
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prometheus.BuildFQName(namespace, c.subsystem, "up"),
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"Value is 1 if operstate is 'up', 0 otherwise.",
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[]string{"device"},
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nil,
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)
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upValue := 0.0
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if ifaceInfo.OperState == "up" {
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upValue = 1.0
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}
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ch <- prometheus.MustNewConstMetric(upDesc, prometheus.GaugeValue, upValue, ifaceInfo.Name)
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infoDesc := prometheus.NewDesc(
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prometheus.BuildFQName(namespace, c.subsystem, "info"),
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"Non-numeric data from /sys/class/net/<iface>, value is always 1.",
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[]string{"device", "address", "broadcast", "duplex", "operstate", "ifalias"},
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nil,
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)
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infoValue := 1.0
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ch <- prometheus.MustNewConstMetric(infoDesc, prometheus.GaugeValue, infoValue, ifaceInfo.Name, ifaceInfo.Address, ifaceInfo.Broadcast, ifaceInfo.Duplex, ifaceInfo.OperState, ifaceInfo.IfAlias)
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if ifaceInfo.AddrAssignType != nil {
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pushMetric(ch, c.subsystem, "address_assign_type", *ifaceInfo.AddrAssignType, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.Carrier != nil {
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pushMetric(ch, c.subsystem, "carrier", *ifaceInfo.Carrier, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.CarrierChanges != nil {
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pushMetric(ch, c.subsystem, "carrier_changes_total", *ifaceInfo.CarrierChanges, ifaceInfo.Name, prometheus.CounterValue)
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}
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if ifaceInfo.CarrierUpCount != nil {
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pushMetric(ch, c.subsystem, "carrier_up_changes_total", *ifaceInfo.CarrierUpCount, ifaceInfo.Name, prometheus.CounterValue)
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}
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if ifaceInfo.CarrierDownCount != nil {
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pushMetric(ch, c.subsystem, "carrier_down_changes_total", *ifaceInfo.CarrierDownCount, ifaceInfo.Name, prometheus.CounterValue)
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}
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if ifaceInfo.DevID != nil {
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pushMetric(ch, c.subsystem, "device_id", *ifaceInfo.DevID, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.Dormant != nil {
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pushMetric(ch, c.subsystem, "dormant", *ifaceInfo.Dormant, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.Flags != nil {
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pushMetric(ch, c.subsystem, "flags", *ifaceInfo.Flags, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.IfIndex != nil {
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pushMetric(ch, c.subsystem, "iface_id", *ifaceInfo.IfIndex, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.IfLink != nil {
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pushMetric(ch, c.subsystem, "iface_link", *ifaceInfo.IfLink, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.LinkMode != nil {
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pushMetric(ch, c.subsystem, "iface_link_mode", *ifaceInfo.LinkMode, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.MTU != nil {
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pushMetric(ch, c.subsystem, "mtu_bytes", *ifaceInfo.MTU, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.NameAssignType != nil {
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pushMetric(ch, c.subsystem, "name_assign_type", *ifaceInfo.NameAssignType, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.NetDevGroup != nil {
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pushMetric(ch, c.subsystem, "net_dev_group", *ifaceInfo.NetDevGroup, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.Speed != nil {
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speedBytes := int64(*ifaceInfo.Speed * 1000 * 1000 / 8)
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pushMetric(ch, c.subsystem, "speed_bytes", speedBytes, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.TxQueueLen != nil {
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pushMetric(ch, c.subsystem, "transmit_queue_length", *ifaceInfo.TxQueueLen, ifaceInfo.Name, prometheus.GaugeValue)
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}
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if ifaceInfo.Type != nil {
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pushMetric(ch, c.subsystem, "protocol_type", *ifaceInfo.Type, ifaceInfo.Name, prometheus.GaugeValue)
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}
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}
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return nil
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}
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func pushMetric(ch chan<- prometheus.Metric, subsystem string, name string, value int64, ifaceName string, valueType prometheus.ValueType) {
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fieldDesc := prometheus.NewDesc(
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prometheus.BuildFQName(namespace, subsystem, name),
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fmt.Sprintf("%s value of /sys/class/net/<iface>.", name),
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[]string{"device"},
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nil,
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)
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ch <- prometheus.MustNewConstMetric(fieldDesc, valueType, float64(value), ifaceName)
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}
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func (c *netClassCollector) getNetClassInfo() (sysfs.NetClass, error) {
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netClass, err := c.fs.NetClass()
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if err != nil {
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return netClass, fmt.Errorf("error obtaining net class info: %w", err)
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}
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for device := range netClass {
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if c.ignoredDevicesPattern.MatchString(device) {
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delete(netClass, device)
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}
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}
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return netClass, nil
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}
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