mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-11-23 20:36:21 +01:00
115 lines
2.8 KiB
Go
115 lines
2.8 KiB
Go
// +build !nofilesystem
|
|
// +build linux freebsd
|
|
|
|
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.")
|
|
)
|
|
|
|
type filesystemCollector struct {
|
|
ignoredMountPointsPattern *regexp.Regexp
|
|
sizeDesc, freeDesc, availDesc,
|
|
filesDesc, filesFreeDesc *prometheus.Desc
|
|
}
|
|
|
|
type filesystemStats struct {
|
|
labelValues []string
|
|
size, free, avail, files, filesFree 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,
|
|
)
|
|
|
|
return &filesystemCollector{
|
|
ignoredMountPointsPattern: pattern,
|
|
sizeDesc: sizeDesc,
|
|
freeDesc: freeDesc,
|
|
availDesc: availDesc,
|
|
filesDesc: filesDesc,
|
|
filesFreeDesc: filesFreeDesc,
|
|
}, 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...,
|
|
)
|
|
}
|
|
return nil
|
|
}
|