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Fix kubelet PVC metrics using a volume stats collector.

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Volumes on each node changes, we should not only add PVC metrics into
gauge vector. It's better use a collector to collector metrics from
stats.
This commit is contained in:
Yecheng Fu
2018-02-01 13:45:35 +08:00
parent c817765b0e
commit fecff55c59
10 changed files with 496 additions and 71 deletions
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59
pkg/kubelet/metrics/metrics.go
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@@ -134,54 +134,6 @@ var (
},
[]string{"eviction_signal"},
)
VolumeStatsCapacityBytes = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: VolumeStatsCapacityBytesKey,
Help: "Capacity in bytes of the volume",
},
[]string{"namespace", "persistentvolumeclaim"},
)
VolumeStatsAvailableBytes = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: VolumeStatsAvailableBytesKey,
Help: "Number of available bytes in the volume",
},
[]string{"namespace", "persistentvolumeclaim"},
)
VolumeStatsUsedBytes = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: VolumeStatsUsedBytesKey,
Help: "Number of used bytes in the volume",
},
[]string{"namespace", "persistentvolumeclaim"},
)
VolumeStatsInodes = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: VolumeStatsInodesKey,
Help: "Maximum number of inodes in the volume",
},
[]string{"namespace", "persistentvolumeclaim"},
)
VolumeStatsInodesFree = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: VolumeStatsInodesFreeKey,
Help: "Number of free inodes in the volume",
},
[]string{"namespace", "persistentvolumeclaim"},
)
VolumeStatsInodesUsed = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: VolumeStatsInodesUsedKey,
Help: "Number of used inodes in the volume",
},
[]string{"namespace", "persistentvolumeclaim"},
)
DevicePluginRegistrationCount = prometheus.NewCounterVec(
prometheus.CounterOpts{
Subsystem: KubeletSubsystem,
@@ -203,7 +155,7 @@ var (
var registerMetrics sync.Once
// Register all metrics.
func Register(containerCache kubecontainer.RuntimeCache) {
func Register(containerCache kubecontainer.RuntimeCache, collectors ...prometheus.Collector) {
// Register the metrics.
registerMetrics.Do(func() {
prometheus.MustRegister(PodWorkerLatency)
@@ -218,14 +170,11 @@ func Register(containerCache kubecontainer.RuntimeCache) {
prometheus.MustRegister(RuntimeOperationsLatency)
prometheus.MustRegister(RuntimeOperationsErrors)
prometheus.MustRegister(EvictionStatsAge)
prometheus.MustRegister(VolumeStatsCapacityBytes)
prometheus.MustRegister(VolumeStatsAvailableBytes)
prometheus.MustRegister(VolumeStatsUsedBytes)
prometheus.MustRegister(VolumeStatsInodes)
prometheus.MustRegister(VolumeStatsInodesFree)
prometheus.MustRegister(VolumeStatsInodesUsed)
prometheus.MustRegister(DevicePluginRegistrationCount)
prometheus.MustRegister(DevicePluginAllocationLatency)
for _, collector := range collectors {
prometheus.MustRegister(collector)
}
})
}