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Expose PVC metrics via kubelet prometheus

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This commit is contained in:
Matthew Wong
2017-08-29 15:03:17 -04:00
parent 92db97dfcc
commit dac2068bbd
3 changed files with 87 additions and 12 deletions
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84
pkg/kubelet/metrics/metrics.go
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@@ -26,18 +26,24 @@ import (
)
const (
KubeletSubsystem = "kubelet"
PodWorkerLatencyKey = "pod_worker_latency_microseconds"
PodStartLatencyKey = "pod_start_latency_microseconds"
CgroupManagerOperationsKey = "cgroup_manager_latency_microseconds"
DockerOperationsLatencyKey = "docker_operations_latency_microseconds"
DockerOperationsKey = "docker_operations"
DockerOperationsErrorsKey = "docker_operations_errors"
DockerOperationsTimeoutKey = "docker_operations_timeout"
PodWorkerStartLatencyKey = "pod_worker_start_latency_microseconds"
PLEGRelistLatencyKey = "pleg_relist_latency_microseconds"
PLEGRelistIntervalKey = "pleg_relist_interval_microseconds"
EvictionStatsAgeKey = "eviction_stats_age_microseconds"
KubeletSubsystem = "kubelet"
PodWorkerLatencyKey = "pod_worker_latency_microseconds"
PodStartLatencyKey = "pod_start_latency_microseconds"
CgroupManagerOperationsKey = "cgroup_manager_latency_microseconds"
DockerOperationsLatencyKey = "docker_operations_latency_microseconds"
DockerOperationsKey = "docker_operations"
DockerOperationsErrorsKey = "docker_operations_errors"
DockerOperationsTimeoutKey = "docker_operations_timeout"
PodWorkerStartLatencyKey = "pod_worker_start_latency_microseconds"
PLEGRelistLatencyKey = "pleg_relist_latency_microseconds"
PLEGRelistIntervalKey = "pleg_relist_interval_microseconds"
EvictionStatsAgeKey = "eviction_stats_age_microseconds"
VolumeStatsCapacityBytesKey = "volume_stats_capacity_bytes"
VolumeStatsAvailableBytesKey = "volume_stats_available_bytes"
VolumeStatsUsedBytesKey = "volume_stats_used_bytes"
VolumeStatsInodesKey = "volume_stats_inodes"
VolumeStatsInodesFreeKey = "volume_stats_inodes_free"
VolumeStatsInodesUsedKey = "volume_stats_inodes_used"
// Metrics keys of remote runtime operations
RuntimeOperationsKey = "runtime_operations"
RuntimeOperationsLatencyKey = "runtime_operations_latency_microseconds"
@@ -162,6 +168,54 @@ 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"},
)
)
var registerMetrics sync.Once
@@ -186,6 +240,12 @@ 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)
})
}