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Add kubelet managed pod metrics

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This commit is contained in:
Lee Verberne
2021-02-11 14:38:36 +01:00
parent 710865511e
commit 29178fff1c
3 changed files with 136 additions and 6 deletions
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77
pkg/kubelet/metrics/metrics.go
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@@ -83,6 +83,19 @@ const (
// Metrics keys for RuntimeClass
RunPodSandboxDurationKey = "run_podsandbox_duration_seconds"
RunPodSandboxErrorsKey = "run_podsandbox_errors_total"
// Metrics to keep track of objects under management
ManagedPodsKey = "managed_pods"
ManagedContainersKey = "managed_containers"
StartedPodsTotalKey = "started_pods_total"
StartedPodsErrorsTotalKey = "started_pods_errors_total"
StartedContainersTotalKey = "started_containers_total"
StartedContainersErrorsTotalKey = "started_containers_errors_total"
// Values used in metric labels
Container = "container"
InitContainer = "init_container"
EphemeralContainer = "ephemeral_container"
)
var (
@@ -431,6 +444,64 @@ var (
},
[]string{"container_state"},
)
// StartedPodsTotal is a counter that tracks pod sandbox creation operations
StartedPodsTotal = metrics.NewCounter(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: StartedPodsTotalKey,
Help: "Cumulative number of pods started",
StabilityLevel: metrics.ALPHA,
},
)
// StartedPodsErrorsTotal is a counter that tracks the number of errors creating pod sandboxes
StartedPodsErrorsTotal = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: StartedPodsErrorsTotalKey,
Help: "Cumulative number of errors when starting pods",
StabilityLevel: metrics.ALPHA,
},
[]string{"message"},
)
// StartedContainersTotal is a counter that tracks the number of container creation operations
StartedContainersTotal = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: StartedContainersTotalKey,
Help: "Cumulative number of containers started",
StabilityLevel: metrics.ALPHA,
},
[]string{"container_type"},
)
// StartedContainersTotal is a counter that tracks the number of errors creating containers
StartedContainersErrorsTotal = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: StartedContainersErrorsTotalKey,
Help: "Cumulative number of errors when starting containers",
StabilityLevel: metrics.ALPHA,
},
[]string{"container_type", "code"},
)
// ManagedPods is a gauge that tracks how many pods are managed by this kubelet
ManagedPods = metrics.NewGauge(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: ManagedPodsKey,
Help: "Number of pods managed by this kubelet",
StabilityLevel: metrics.ALPHA,
},
)
// ManagedContainers is a gauge that tracks how many containers are managed by this kubelet
ManagedContainers = metrics.NewGaugeVec(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: ManagedContainersKey,
Help: "Number of containers managed by this kubelet",
StabilityLevel: metrics.ALPHA,
},
[]string{"container_type"},
)
)
var registerMetrics sync.Once
@@ -459,6 +530,12 @@ func Register(collectors ...metrics.StableCollector) {
legacyregistry.MustRegister(DevicePluginAllocationDuration)
legacyregistry.MustRegister(RunningContainerCount)
legacyregistry.MustRegister(RunningPodCount)
legacyregistry.MustRegister(ManagedPods)
legacyregistry.MustRegister(ManagedContainers)
legacyregistry.MustRegister(StartedPodsTotal)
legacyregistry.MustRegister(StartedPodsErrorsTotal)
legacyregistry.MustRegister(StartedContainersTotal)
legacyregistry.MustRegister(StartedContainersErrorsTotal)
legacyregistry.MustRegister(RunPodSandboxDuration)
legacyregistry.MustRegister(RunPodSandboxErrors)
if utilfeature.DefaultFeatureGate.Enabled(features.DynamicKubeletConfig) {