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https://github.com/prometheus/node_exporter.git
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d73f1e60c4
* Update golang.org/x/sys/unix This allows to use simplified string conversion of Utsname members. * Simplify Utsname string conversion Use Utsname from golang.org/x/sys/unix which contains byte array instead of int8/uint8 array members. This allows to simplify the string conversions of these members.
67 lines
1.8 KiB
Go
67 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 !nouname
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package collector
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import (
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"bytes"
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"github.com/prometheus/client_golang/prometheus"
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"golang.org/x/sys/unix"
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)
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var unameDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "uname", "info"),
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"Labeled system information as provided by the uname system call.",
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[]string{
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"sysname",
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"release",
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"version",
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"machine",
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"nodename",
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"domainname",
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},
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nil,
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)
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type unameCollector struct{}
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func init() {
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registerCollector("uname", defaultEnabled, newUnameCollector)
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}
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// NewUnameCollector returns new unameCollector.
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func newUnameCollector() (Collector, error) {
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return &unameCollector{}, nil
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}
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func (c unameCollector) Update(ch chan<- prometheus.Metric) error {
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var uname unix.Utsname
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if err := unix.Uname(&uname); err != nil {
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return err
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}
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ch <- prometheus.MustNewConstMetric(unameDesc, prometheus.GaugeValue, 1,
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string(uname.Sysname[:bytes.IndexByte(uname.Sysname[:], 0)]),
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string(uname.Release[:bytes.IndexByte(uname.Release[:], 0)]),
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string(uname.Version[:bytes.IndexByte(uname.Version[:], 0)]),
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string(uname.Machine[:bytes.IndexByte(uname.Machine[:], 0)]),
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string(uname.Nodename[:bytes.IndexByte(uname.Nodename[:], 0)]),
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string(uname.Domainname[:bytes.IndexByte(uname.Domainname[:], 0)]),
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)
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return nil
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}
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