metrics

var (
	NodeName = prometheus.NewGaugeVec(
		prometheus.GaugeOpts{
			Subsystem: KubeletSubsystem,
			Name:      NodeNameKey,
			Help:      "The node's name. The count is always 1.",
		},
		[]string{NodeLabelKey},
	)
	ContainersPerPodCount = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      "containers_per_pod_count",
			Help:      "The number of containers per pod.",
			Buckets:   prometheus.DefBuckets,
		},
	)
	PodWorkerDuration = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      PodWorkerDurationKey,
			Help:      "Duration in seconds to sync a single pod. Broken down by operation type: create, update, or sync",
			Buckets:   prometheus.DefBuckets,
		},
		[]string{"operation_type"},
	)
	PodStartDuration = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      PodStartDurationKey,
			Help:      "Duration in seconds for a single pod to go from pending to running.",
			Buckets:   prometheus.DefBuckets,
		},
	)
	CgroupManagerDuration = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      CgroupManagerOperationsKey,
			Help:      "Duration in seconds for cgroup manager operations. Broken down by method.",
			Buckets:   prometheus.DefBuckets,
		},
		[]string{"operation_type"},
	)
	PodWorkerStartDuration = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      PodWorkerStartDurationKey,
			Help:      "Duration in seconds from seeing a pod to starting a worker.",
			Buckets:   prometheus.DefBuckets,
		},
	)
	PLEGRelistDuration = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      PLEGRelistDurationKey,
			Help:      "Duration in seconds for relisting pods in PLEG.",
			Buckets:   prometheus.DefBuckets,
		},
	)
	PLEGDiscardEvents = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Subsystem: KubeletSubsystem,
			Name:      PLEGDiscardEventsKey,
			Help:      "The number of discard events in PLEG.",
		},
		[]string{},
	)
	PLEGRelistInterval = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      PLEGRelistIntervalKey,
			Help:      "Interval in seconds between relisting in PLEG.",
			Buckets:   prometheus.DefBuckets,
		},
	)
	// Metrics of remote runtime operations.
	RuntimeOperations = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Subsystem: KubeletSubsystem,
			Name:      RuntimeOperationsKey,
			Help:      "Cumulative number of runtime operations by operation type.",
		},
		[]string{"operation_type"},
	)
	RuntimeOperationsDuration = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      RuntimeOperationsDurationKey,
			Help:      "Duration in seconds of runtime operations. Broken down by operation type.",
			Buckets:   prometheus.DefBuckets,
		},
		[]string{"operation_type"},
	)
	RuntimeOperationsErrors = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Subsystem: KubeletSubsystem,
			Name:      RuntimeOperationsErrorsKey,
			Help:      "Cumulative number of runtime operation errors by operation type.",
		},
		[]string{"operation_type"},
	)
	EvictionStatsAge = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      EvictionStatsAgeKey,
			Help:      "Time between when stats are collected, and when pod is evicted based on those stats by eviction signal",
			Buckets:   prometheus.DefBuckets,
		},
		[]string{"eviction_signal"},
	)
	DevicePluginRegistrationCount = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Subsystem: KubeletSubsystem,
			Name:      DevicePluginRegistrationCountKey,
			Help:      "Cumulative number of device plugin registrations. Broken down by resource name.",
		},
		[]string{"resource_name"},
	)
	DevicePluginAllocationDuration = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      DevicePluginAllocationDurationKey,
			Help:      "Duration in seconds to serve a device plugin Allocation request. Broken down by resource name.",
			Buckets:   prometheus.DefBuckets,
		},
		[]string{"resource_name"},
	)

	DeprecatedPodWorkerLatency = prometheus.NewSummaryVec(
		prometheus.SummaryOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedPodWorkerLatencyKey,
			Help:      "(Deprecated) Latency in microseconds to sync a single pod. Broken down by operation type: create, update, or sync",
		},
		[]string{"operation_type"},
	)
	DeprecatedPodStartLatency = prometheus.NewSummary(
		prometheus.SummaryOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedPodStartLatencyKey,
			Help:      "(Deprecated) Latency in microseconds for a single pod to go from pending to running.",
		},
	)
	DeprecatedCgroupManagerLatency = prometheus.NewSummaryVec(
		prometheus.SummaryOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedCgroupManagerOperationsKey,
			Help:      "(Deprecated) Latency in microseconds for cgroup manager operations. Broken down by method.",
		},
		[]string{"operation_type"},
	)
	DeprecatedPodWorkerStartLatency = prometheus.NewSummary(
		prometheus.SummaryOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedPodWorkerStartLatencyKey,
			Help:      "(Deprecated) Latency in microseconds from seeing a pod to starting a worker.",
		},
	)
	DeprecatedPLEGRelistLatency = prometheus.NewSummary(
		prometheus.SummaryOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedPLEGRelistLatencyKey,
			Help:      "(Deprecated) Latency in microseconds for relisting pods in PLEG.",
		},
	)
	DeprecatedPLEGRelistInterval = prometheus.NewSummary(
		prometheus.SummaryOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedPLEGRelistIntervalKey,
			Help:      "(Deprecated) Interval in microseconds between relisting in PLEG.",
		},
	)
	DeprecatedRuntimeOperations = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedRuntimeOperationsKey,
			Help:      "(Deprecated) Cumulative number of runtime operations by operation type.",
		},
		[]string{"operation_type"},
	)
	DeprecatedRuntimeOperationsLatency = prometheus.NewSummaryVec(
		prometheus.SummaryOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedRuntimeOperationsLatencyKey,
			Help:      "(Deprecated) Latency in microseconds of runtime operations. Broken down by operation type.",
		},
		[]string{"operation_type"},
	)
	DeprecatedRuntimeOperationsErrors = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedRuntimeOperationsErrorsKey,
			Help:      "(Deprecated) Cumulative number of runtime operation errors by operation type.",
		},
		[]string{"operation_type"},
	)
	DeprecatedEvictionStatsAge = prometheus.NewSummaryVec(
		prometheus.SummaryOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedEvictionStatsAgeKey,
			Help:      "(Deprecated) Time between when stats are collected, and when pod is evicted based on those stats by eviction signal",
		},
		[]string{"eviction_signal"},
	)
	DeprecatedDevicePluginRegistrationCount = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedDevicePluginRegistrationCountKey,
			Help:      "(Deprecated) Cumulative number of device plugin registrations. Broken down by resource name.",
		},
		[]string{"resource_name"},
	)
	DeprecatedDevicePluginAllocationLatency = prometheus.NewSummaryVec(
		prometheus.SummaryOpts{
			Subsystem: KubeletSubsystem,
			Name:      DeprecatedDevicePluginAllocationLatencyKey,
			Help:      "(Deprecated) Latency in microseconds to serve a device plugin Allocation request. Broken down by resource name.",
		},
		[]string{"resource_name"},
	)

	AssignedConfig = prometheus.NewGaugeVec(
		prometheus.GaugeOpts{
			Subsystem: KubeletSubsystem,
			Name:      AssignedConfigKey,
			Help:      "The node's understanding of intended config. The count is always 1.",
		},
		[]string{ConfigSourceLabelKey, ConfigUIDLabelKey, ConfigResourceVersionLabelKey, KubeletConfigKeyLabelKey},
	)
	ActiveConfig = prometheus.NewGaugeVec(
		prometheus.GaugeOpts{
			Subsystem: KubeletSubsystem,
			Name:      ActiveConfigKey,
			Help:      "The config source the node is actively using. The count is always 1.",
		},
		[]string{ConfigSourceLabelKey, ConfigUIDLabelKey, ConfigResourceVersionLabelKey, KubeletConfigKeyLabelKey},
	)
	LastKnownGoodConfig = prometheus.NewGaugeVec(
		prometheus.GaugeOpts{
			Subsystem: KubeletSubsystem,
			Name:      LastKnownGoodConfigKey,
			Help:      "The config source the node will fall back to when it encounters certain errors. The count is always 1.",
		},
		[]string{ConfigSourceLabelKey, ConfigUIDLabelKey, ConfigResourceVersionLabelKey, KubeletConfigKeyLabelKey},
	)
	ConfigError = prometheus.NewGauge(
		prometheus.GaugeOpts{
			Subsystem: KubeletSubsystem,
			Name:      ConfigErrorKey,
			Help:      "This metric is true (1) if the node is experiencing a configuration-related error, false (0) otherwise.",
		},
	)
	RunPodSandboxDuration = prometheus.NewHistogramVec(
		prometheus.HistogramOpts{
			Subsystem: KubeletSubsystem,
			Name:      RunPodSandboxDurationKey,
			Help:      "Duration in seconds of the run_podsandbox operations. Broken down by RuntimeClass.",

			Buckets: prometheus.DefBuckets,
		},
		[]string{"runtime_handler"},
	)
	RunPodSandboxErrors = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Subsystem: KubeletSubsystem,
			Name:      RunPodSandboxErrorsKey,
			Help:      "Cumulative number of the run_podsandbox operation errors by RuntimeClass.",
		},
		[]string{"runtime_handler"},
	)
)