mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-12-20 07:26:08 +01:00
120 lines
3.2 KiB
Go
120 lines
3.2 KiB
Go
// Copyright 2015 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 !norunit
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package collector
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import (
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"flag"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/common/log"
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"github.com/soundcloud/go-runit/runit"
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)
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var runitServiceDir = flag.String(
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"collector.runit.servicecdir",
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"/etc/service",
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"Path to runit service directory.")
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type runitCollector struct {
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state, stateDesired, stateNormal, stateTimestamp *prometheus.GaugeVec
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}
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func init() {
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Factories["runit"] = NewRunitCollector
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}
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func NewRunitCollector() (Collector, error) {
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var (
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subsystem = "service"
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constLabels = prometheus.Labels{"supervisor": "runit"}
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labelNames = []string{"service"}
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)
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return &runitCollector{
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state: prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Namespace: Namespace,
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Subsystem: subsystem,
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Name: "state",
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Help: "State of runit service.",
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ConstLabels: constLabels,
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},
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labelNames,
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),
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stateDesired: prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Namespace: Namespace,
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Subsystem: subsystem,
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Name: "desired_state",
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Help: "Desired state of runit service.",
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ConstLabels: constLabels,
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},
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labelNames,
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),
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stateNormal: prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Namespace: Namespace,
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Subsystem: subsystem,
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Name: "normal_state",
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Help: "Normal state of runit service.",
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ConstLabels: constLabels,
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},
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labelNames,
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),
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stateTimestamp: prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Namespace: Namespace,
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Subsystem: subsystem,
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Name: "state_last_change_timestamp_seconds",
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Help: "Unix timestamp of the last runit service state change.",
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ConstLabels: constLabels,
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},
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labelNames,
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),
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}, nil
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}
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func (c *runitCollector) Update(ch chan<- prometheus.Metric) error {
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services, err := runit.GetServices(*runitServiceDir)
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if err != nil {
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return err
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}
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for _, service := range services {
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status, err := service.Status()
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if err != nil {
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log.Debugf("Couldn't get status for %s: %s, skipping...", service.Name, err)
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continue
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}
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log.Debugf("%s is %d on pid %d for %d seconds", service.Name, status.State, status.Pid, status.Duration)
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c.state.WithLabelValues(service.Name).Set(float64(status.State))
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c.stateDesired.WithLabelValues(service.Name).Set(float64(status.Want))
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c.stateTimestamp.WithLabelValues(service.Name).Set(float64(status.Timestamp.Unix()))
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if status.NormallyUp {
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c.stateNormal.WithLabelValues(service.Name).Set(1)
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} else {
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c.stateNormal.WithLabelValues(service.Name).Set(0)
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}
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}
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c.state.Collect(ch)
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c.stateDesired.Collect(ch)
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c.stateNormal.Collect(ch)
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c.stateTimestamp.Collect(ch)
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return nil
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}
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