ston1th/node_exporter
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Migrated everything to new client_golang.

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This commit is contained in:
Bjoern Rabenstein 2014-06-26 19:20:36 +02:00
commit 0563ecd29d
11 changed files with 388 additions and 246 deletions
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118
collector/filesystem.go
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@ -11,26 +11,68 @@ import (
"strings"
"syscall"
"github.com/golang/glog"
"github.com/golang/glog"
"github.com/prometheus/client_golang/prometheus"
)
const (
procMounts = "/proc/mounts"
procMounts = "/proc/mounts"
filesystemSubsystem = "filesystem"
)
var (
fsSizeMetric = prometheus.NewGauge()
fsFreeMetric = prometheus.NewGauge()
fsAvailMetric = prometheus.NewGauge()
fsFilesMetric = prometheus.NewGauge()
fsFilesFreeMetric = prometheus.NewGauge()
filesystemLabelNames = []string{"filesystem"}
fsSizeMetric = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: filesystemSubsystem,
Name: "size",
Help: "Filesystem size in bytes.",
},
filesystemLabelNames,
)
fsFreeMetric = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: filesystemSubsystem,
Name: "free",
Help: "Filesystem free space in bytes.",
},
filesystemLabelNames,
)
fsAvailMetric = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: filesystemSubsystem,
Name: "avail",
Help: "Filesystem space available to non-root users in bytes.",
},
filesystemLabelNames,
)
fsFilesMetric = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: filesystemSubsystem,
Name: "files",
Help: "Filesystem total file nodes.",
},
filesystemLabelNames,
)
fsFilesFreeMetric = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: filesystemSubsystem,
Name: "files_free",
Help: "Filesystem total free file nodes.",
},
filesystemLabelNames,
)
ignoredMountPoints = flag.String("filesystemIgnoredMountPoints", "^/(sys|proc|dev)($|/)", "Regexp of mount points to ignore for filesystem collector.")
)
type filesystemCollector struct {
registry prometheus.Registry
config Config
ignoredMountPointsPattern *regexp.Regexp
}
@ -41,42 +83,26 @@ func init() {
// Takes a config struct and prometheus registry and returns a new Collector exposing
// network device filesystems.
func NewFilesystemCollector(config Config, registry prometheus.Registry) (Collector, error) {
func NewFilesystemCollector(config Config) (Collector, error) {
c := filesystemCollector{
config: config,
registry: registry,
config: config,
ignoredMountPointsPattern: regexp.MustCompile(*ignoredMountPoints),
}
registry.Register(
"node_filesystem_size",
"Filesystem size in bytes.",
prometheus.NilLabels,
fsSizeMetric,
)
registry.Register(
"node_filesystem_free",
"Filesystem free space in bytes.",
prometheus.NilLabels,
fsFreeMetric,
)
registry.Register(
"node_filesystem_avail",
"Filesystem space available to non-root users in bytes.",
prometheus.NilLabels,
fsAvailMetric,
)
registry.Register(
"node_filesystem_files",
"Filesystem total file nodes.",
prometheus.NilLabels,
fsFilesMetric,
)
registry.Register(
"node_filesystem_files_free",
"Filesystem total free file nodes.",
prometheus.NilLabels,
fsFilesFreeMetric,
)
if _, err := prometheus.RegisterOrGet(fsSizeMetric); err != nil {
return nil, err
}
if _, err := prometheus.RegisterOrGet(fsFreeMetric); err != nil {
return nil, err
}
if _, err := prometheus.RegisterOrGet(fsAvailMetric); err != nil {
return nil, err
}
if _, err := prometheus.RegisterOrGet(fsFilesMetric); err != nil {
return nil, err
}
if _, err := prometheus.RegisterOrGet(fsFilesFreeMetric); err != nil {
return nil, err
}
return &c, nil
}
@ -96,11 +122,11 @@ func (c *filesystemCollector) Update() (updates int, err error) {
if err != nil {
return updates, fmt.Errorf("Statfs on %s returned %s", mp, err)
}
fsSizeMetric.Set(map[string]string{"filesystem": mp}, float64(buf.Blocks)*float64(buf.Bsize))
fsFreeMetric.Set(map[string]string{"filesystem": mp}, float64(buf.Bfree)*float64(buf.Bsize))
fsAvailMetric.Set(map[string]string{"filesystem": mp}, float64(buf.Bavail)*float64(buf.Bsize))
fsFilesMetric.Set(map[string]string{"filesystem": mp}, float64(buf.Files))
fsFilesFreeMetric.Set(map[string]string{"filesystem": mp}, float64(buf.Ffree))
fsSizeMetric.WithLabelValues(mp).Set(float64(buf.Blocks) * float64(buf.Bsize))
fsFreeMetric.WithLabelValues(mp).Set(float64(buf.Bfree) * float64(buf.Bsize))
fsAvailMetric.WithLabelValues(mp).Set(float64(buf.Bavail) * float64(buf.Bsize))
fsFilesMetric.WithLabelValues(mp).Set(float64(buf.Files))
fsFilesFreeMetric.WithLabelValues(mp).Set(float64(buf.Ffree))
updates++
}
return updates, err