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Adding kubelet metrics for started and failed to start HostProcess containers

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Signed-off-by: Mark Rossetti <marosset@microsoft.com>
This commit is contained in:
Mark Rossetti
2021-09-30 10:33:15 -07:00
parent 6d30c96d4a
commit ef324d6bbd
3 changed files with 181 additions and 13 deletions
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28
pkg/kubelet/metrics/metrics.go
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@@ -90,6 +90,10 @@ const (
StartedContainersTotalKey = "started_containers_total"
StartedContainersErrorsTotalKey = "started_containers_errors_total"
// Metrics to track HostProcess container usage by this kubelet
StartedHostProcessContainersTotalKey = "started_host_process_containers_total"
StartedHostProcessContainersErrorsTotalKey = "started_host_process_containers_errors_total"
// Metrics to track ephemeral container usage by this kubelet
ManagedEphemeralContainersKey = "managed_ephemeral_containers"
@@ -488,6 +492,26 @@ var (
},
[]string{"container_type", "code"},
)
// StartedHostProcessContainersTotal is a counter that tracks the number of hostprocess container creation operations
StartedHostProcessContainersTotal = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: StartedHostProcessContainersTotalKey,
Help: "Cumulative number of hostprocess containers started. This metric will only be collected on Windows and requires WindowsHostProcessContainers feature gate to be enabled.",
StabilityLevel: metrics.ALPHA,
},
[]string{"container_type"},
)
// StartedHostProcessContainersErrorsTotal is a counter that tracks the number of errors creating hostprocess containers
StartedHostProcessContainersErrorsTotal = metrics.NewCounterVec(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: StartedHostProcessContainersErrorsTotalKey,
Help: "Cumulative number of errors when starting hostprocess containers. This metric will only be collected on Windows and requires WindowsHostProcessContainers feature gate to be enabled.",
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{
@@ -530,6 +554,10 @@ func Register(collectors ...metrics.StableCollector) {
legacyregistry.MustRegister(StartedPodsErrorsTotal)
legacyregistry.MustRegister(StartedContainersTotal)
legacyregistry.MustRegister(StartedContainersErrorsTotal)
if utilfeature.DefaultFeatureGate.Enabled(features.WindowsHostProcessContainers) {
legacyregistry.MustRegister(StartedHostProcessContainersTotal)
legacyregistry.MustRegister(StartedHostProcessContainersErrorsTotal)
}
legacyregistry.MustRegister(RunPodSandboxDuration)
legacyregistry.MustRegister(RunPodSandboxErrors)
if utilfeature.DefaultFeatureGate.Enabled(features.DynamicKubeletConfig) {