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Merge pull request #91 from wrouesnel/master

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Add device,fstype collection to the filesystem exporter.
This commit is contained in:
Julius Volz 2015-07-07 11:34:16 -06:00
parent a9f5316bb3 676ed5c6ac
commit 5558fb0ffc
1 changed files with 24 additions and 16 deletions
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40
collector/filesystem.go
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@ -24,6 +24,12 @@ var (
ignoredMountPoints = flag.String("collector.filesystem.ignored-mount-points", "^/(sys|proc|dev)($|/)", "Regexp of mount points to ignore for filesystem collector.")
)
type filesystemDetails struct {
device string
mountPoint string
fsType string
}
type filesystemCollector struct {
ignoredMountPointsPattern *regexp.Regexp
@ -37,7 +43,7 @@ func init() {
// Takes a prometheus registry and returns a new Collector exposing
// network device filesystems.
func NewFilesystemCollector() (Collector, error) {
var filesystemLabelNames = []string{"filesystem"}
var filesystemLabelNames = []string{"device", "mountpoint", "fstype"}
return &filesystemCollector{
ignoredMountPointsPattern: regexp.MustCompile(*ignoredMountPoints),
@ -91,25 +97,26 @@ func NewFilesystemCollector() (Collector, error) {
// Expose filesystem fullness.
func (c *filesystemCollector) Update(ch chan<- prometheus.Metric) (err error) {
mps, err := mountPoints()
mpds, err := mountPointDetails()
if err != nil {
return err
}
for _, mp := range mps {
if c.ignoredMountPointsPattern.MatchString(mp) {
log.Debugf("Ignoring mount point: %s", mp)
for _, mpd := range mpds {
if c.ignoredMountPointsPattern.MatchString(mpd.mountPoint) {
log.Debugf("Ignoring mount point: %s", mpd.mountPoint)
continue
}
buf := new(syscall.Statfs_t)
err := syscall.Statfs(mp, buf)
err := syscall.Statfs(mpd.mountPoint, buf)
if err != nil {
return fmt.Errorf("Statfs on %s returned %s", mp, err)
return fmt.Errorf("Statfs on %s returned %s", mpd.mountPoint, err)
}
c.size.WithLabelValues(mp).Set(float64(buf.Blocks) * float64(buf.Bsize))
c.free.WithLabelValues(mp).Set(float64(buf.Bfree) * float64(buf.Bsize))
c.avail.WithLabelValues(mp).Set(float64(buf.Bavail) * float64(buf.Bsize))
c.files.WithLabelValues(mp).Set(float64(buf.Files))
c.filesFree.WithLabelValues(mp).Set(float64(buf.Ffree))
c.size.WithLabelValues(mpd.device, mpd.mountPoint, mpd.fsType).Set(float64(buf.Blocks) * float64(buf.Bsize))
c.free.WithLabelValues(mpd.device, mpd.mountPoint, mpd.fsType).Set(float64(buf.Bfree) * float64(buf.Bsize))
c.avail.WithLabelValues(mpd.device, mpd.mountPoint, mpd.fsType).Set(float64(buf.Bavail) * float64(buf.Bsize))
c.files.WithLabelValues(mpd.device, mpd.mountPoint, mpd.fsType).Set(float64(buf.Files))
c.filesFree.WithLabelValues(mpd.device, mpd.mountPoint, mpd.fsType).Set(float64(buf.Ffree))
}
c.size.Collect(ch)
c.free.Collect(ch)
@ -119,18 +126,19 @@ func (c *filesystemCollector) Update(ch chan<- prometheus.Metric) (err error) {
return err
}
func mountPoints() ([]string, error) {
func mountPointDetails() ([]filesystemDetails, error) {
file, err := os.Open(procMounts)
if err != nil {
return nil, err
}
defer file.Close()
mountPoints := []string{}
filesystems := []filesystemDetails{}
scanner := bufio.NewScanner(file)
for scanner.Scan() {
parts := strings.Fields(scanner.Text())
mountPoints = append(mountPoints, parts[1])
filesystems = append(filesystems, filesystemDetails{parts[0], parts[1], parts[2]})
}
return mountPoints, nil
return filesystems, nil
}