mirror of
https://github.com/prometheus/node_exporter.git
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dfa53f835a
* Use `errors.Is()` for unwrapping errors. * Use `%w` error verb in internal error formatting. Signed-off-by: Ben Kochie <superq@gmail.com>
59 lines
1.8 KiB
Go
59 lines
1.8 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 darwin dragonfly freebsd linux netbsd openbsd solaris
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// +build !noloadavg
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package collector
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import (
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"fmt"
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"github.com/go-kit/kit/log"
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"github.com/go-kit/kit/log/level"
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"github.com/prometheus/client_golang/prometheus"
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)
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type loadavgCollector struct {
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metric []typedDesc
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logger log.Logger
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}
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func init() {
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registerCollector("loadavg", defaultEnabled, NewLoadavgCollector)
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}
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// NewLoadavgCollector returns a new Collector exposing load average stats.
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func NewLoadavgCollector(logger log.Logger) (Collector, error) {
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return &loadavgCollector{
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metric: []typedDesc{
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{prometheus.NewDesc(namespace+"_load1", "1m load average.", nil, nil), prometheus.GaugeValue},
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{prometheus.NewDesc(namespace+"_load5", "5m load average.", nil, nil), prometheus.GaugeValue},
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{prometheus.NewDesc(namespace+"_load15", "15m load average.", nil, nil), prometheus.GaugeValue},
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},
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logger: logger,
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}, nil
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}
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func (c *loadavgCollector) Update(ch chan<- prometheus.Metric) error {
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loads, err := getLoad()
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if err != nil {
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return fmt.Errorf("couldn't get load: %w", err)
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}
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for i, load := range loads {
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level.Debug(c.logger).Log("msg", "return load", "index", i, "load", load)
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ch <- c.metric[i].mustNewConstMetric(load)
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}
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return err
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}
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