119 lines
3.2 KiB
Go
119 lines
3.2 KiB
Go
// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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// +build darwin freebsd linux windows
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package network
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import (
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"strings"
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"github.com/elastic/beats/libbeat/common"
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"github.com/elastic/beats/libbeat/logp"
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"github.com/elastic/beats/metricbeat/mb"
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"github.com/elastic/beats/metricbeat/mb/parse"
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"github.com/pkg/errors"
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"github.com/shirou/gopsutil/net"
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)
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var debugf = logp.MakeDebug("system-network")
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func init() {
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mb.Registry.MustAddMetricSet("system", "network", New,
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mb.WithHostParser(parse.EmptyHostParser),
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mb.DefaultMetricSet(),
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)
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}
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// MetricSet for fetching system network IO metrics.
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type MetricSet struct {
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mb.BaseMetricSet
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interfaces map[string]struct{}
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}
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// New is a mb.MetricSetFactory that returns a new MetricSet.
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func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
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// Unpack additional configuration options.
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config := struct {
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Interfaces []string `config:"interfaces"`
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}{}
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err := base.Module().UnpackConfig(&config)
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if err != nil {
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return nil, err
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}
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var interfaceSet map[string]struct{}
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if len(config.Interfaces) > 0 {
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interfaceSet = make(map[string]struct{}, len(config.Interfaces))
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for _, ifc := range config.Interfaces {
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interfaceSet[strings.ToLower(ifc)] = struct{}{}
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}
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debugf("network io stats will be included for %v", interfaceSet)
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}
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return &MetricSet{
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BaseMetricSet: base,
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interfaces: interfaceSet,
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}, nil
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}
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// Fetch fetches network IO metrics from the OS.
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func (m *MetricSet) Fetch() ([]common.MapStr, error) {
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stats, err := net.IOCounters(true)
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if err != nil {
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return nil, errors.Wrap(err, "network io counters")
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}
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var events []common.MapStr
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if m.interfaces == nil {
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// Include all stats.
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for _, counters := range stats {
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events = append(events, ioCountersToMapStr(counters))
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}
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} else {
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// Select stats by interface name.
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for _, counters := range stats {
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name := strings.ToLower(counters.Name)
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if _, include := m.interfaces[name]; include {
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events = append(events, ioCountersToMapStr(counters))
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continue
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}
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}
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}
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return events, nil
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}
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func ioCountersToMapStr(counters net.IOCountersStat) common.MapStr {
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return common.MapStr{
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"name": counters.Name,
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"in": common.MapStr{
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"errors": counters.Errin,
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"dropped": counters.Dropin,
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"bytes": counters.BytesRecv,
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"packets": counters.PacketsRecv,
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},
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"out": common.MapStr{
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"errors": counters.Errout,
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"dropped": counters.Dropout,
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"packets": counters.PacketsSent,
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"bytes": counters.BytesSent,
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},
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}
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}
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