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Merge pull request #99000 from verb/1.21-kubelet-metrics

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Add kubelet metrics for ephemeral containers
This commit is contained in:
Kubernetes Prow Robot
2021-07-08 14:00:55 -07:00
committed by GitHub
parent b765496650 30d2ad576a
commit 7c84064a4f
3 changed files with 106 additions and 6 deletions
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67
pkg/kubelet/metrics/metrics.go
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@@ -83,6 +83,20 @@ const (
// Metrics keys for RuntimeClass
RunPodSandboxDurationKey = "run_podsandbox_duration_seconds"
RunPodSandboxErrorsKey = "run_podsandbox_errors_total"
// Metrics to keep track of total number of Pods and Containers started
StartedPodsTotalKey = "started_pods_total"
StartedPodsErrorsTotalKey = "started_pods_errors_total"
StartedContainersTotalKey = "started_containers_total"
StartedContainersErrorsTotalKey = "started_containers_errors_total"
// Metrics to track ephemeral container usage by this kubelet
ManagedEphemeralContainersKey = "managed_ephemeral_containers"
// Values used in metric labels
Container = "container"
InitContainer = "init_container"
EphemeralContainer = "ephemeral_container"
)
var (
@@ -436,6 +450,54 @@ 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"},
)
// ManagedEphemeralContainers is a gauge that indicates how many ephemeral containers are managed by this kubelet.
ManagedEphemeralContainers = metrics.NewGauge(
&metrics.GaugeOpts{
Subsystem: KubeletSubsystem,
Name: ManagedEphemeralContainersKey,
Help: "Current number of ephemeral containers in pods managed by this kubelet. Ephemeral containers will be ignored if disabled by the EphemeralContainers feature gate, and this number will be 0.",
StabilityLevel: metrics.ALPHA,
},
)
)
var registerMetrics sync.Once
@@ -464,6 +526,11 @@ func Register(collectors ...metrics.StableCollector) {
legacyregistry.MustRegister(DevicePluginAllocationDuration)
legacyregistry.MustRegister(RunningContainerCount)
legacyregistry.MustRegister(RunningPodCount)
legacyregistry.MustRegister(ManagedEphemeralContainers)
legacyregistry.MustRegister(StartedPodsTotal)
legacyregistry.MustRegister(StartedPodsErrorsTotal)
legacyregistry.MustRegister(StartedContainersTotal)
legacyregistry.MustRegister(StartedContainersErrorsTotal)
legacyregistry.MustRegister(RunPodSandboxDuration)
legacyregistry.MustRegister(RunPodSandboxErrors)
if utilfeature.DefaultFeatureGate.Enabled(features.DynamicKubeletConfig) {