mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-12-28 06:59:44 -08:00
141 lines
3.8 KiB
Go
141 lines
3.8 KiB
Go
// Copyright 2015 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// +build !nofilesystem
|
|
// +build linux freebsd openbsd
|
|
|
|
package collector
|
|
|
|
import (
|
|
"flag"
|
|
"regexp"
|
|
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
// Arch-dependent implementation must define:
|
|
// * defIgnoredMountPoints
|
|
// * filesystemLabelNames
|
|
// * filesystemCollector.GetStats
|
|
|
|
var (
|
|
ignoredMountPoints = flag.String(
|
|
"collector.filesystem.ignored-mount-points",
|
|
defIgnoredMountPoints,
|
|
"Regexp of mount points to ignore for filesystem collector.")
|
|
|
|
filesystemLabelNames = []string{"device", "mountpoint", "fstype"}
|
|
)
|
|
|
|
type filesystemCollector struct {
|
|
ignoredMountPointsPattern *regexp.Regexp
|
|
sizeDesc, freeDesc, availDesc,
|
|
filesDesc, filesFreeDesc, roDesc *prometheus.Desc
|
|
}
|
|
|
|
type filesystemStats struct {
|
|
labelValues []string
|
|
size, free, avail, files, filesFree, ro float64
|
|
}
|
|
|
|
func init() {
|
|
Factories["filesystem"] = NewFilesystemCollector
|
|
}
|
|
|
|
// Takes a prometheus registry and returns a new Collector exposing
|
|
// Filesystems stats.
|
|
func NewFilesystemCollector() (Collector, error) {
|
|
subsystem := "filesystem"
|
|
pattern := regexp.MustCompile(*ignoredMountPoints)
|
|
|
|
sizeDesc := prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "size"),
|
|
"Filesystem size in bytes.",
|
|
filesystemLabelNames, nil,
|
|
)
|
|
|
|
freeDesc := prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "free"),
|
|
"Filesystem free space in bytes.",
|
|
filesystemLabelNames, nil,
|
|
)
|
|
|
|
availDesc := prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "avail"),
|
|
"Filesystem space available to non-root users in bytes.",
|
|
filesystemLabelNames, nil,
|
|
)
|
|
|
|
filesDesc := prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "files"),
|
|
"Filesystem total file nodes.",
|
|
filesystemLabelNames, nil,
|
|
)
|
|
|
|
filesFreeDesc := prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "files_free"),
|
|
"Filesystem total free file nodes.",
|
|
filesystemLabelNames, nil,
|
|
)
|
|
|
|
roDesc := prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "readonly"),
|
|
"Filesystem read-only status.",
|
|
filesystemLabelNames, nil,
|
|
)
|
|
|
|
return &filesystemCollector{
|
|
ignoredMountPointsPattern: pattern,
|
|
sizeDesc: sizeDesc,
|
|
freeDesc: freeDesc,
|
|
availDesc: availDesc,
|
|
filesDesc: filesDesc,
|
|
filesFreeDesc: filesFreeDesc,
|
|
roDesc: roDesc,
|
|
}, nil
|
|
}
|
|
|
|
func (c *filesystemCollector) Update(ch chan<- prometheus.Metric) (err error) {
|
|
stats, err := c.GetStats()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, s := range stats {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.sizeDesc, prometheus.GaugeValue,
|
|
s.size, s.labelValues...,
|
|
)
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.freeDesc, prometheus.GaugeValue,
|
|
s.free, s.labelValues...,
|
|
)
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.availDesc, prometheus.GaugeValue,
|
|
s.avail, s.labelValues...,
|
|
)
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.filesDesc, prometheus.GaugeValue,
|
|
s.files, s.labelValues...,
|
|
)
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.filesFreeDesc, prometheus.GaugeValue,
|
|
s.filesFree, s.labelValues...,
|
|
)
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.roDesc, prometheus.GaugeValue,
|
|
s.ro, s.labelValues...,
|
|
)
|
|
}
|
|
return nil
|
|
}
|