kubernetes/staging/src/k8s.io/component-base/tracing/api/v1/config.go

var maxSamplingRatePerMillion …

// ValidateTracingConfiguration validates the tracing configuration
func ValidateTracingConfiguration(traceConfig *TracingConfiguration, featureGate featuregate.FeatureGate, fldPath *field.Path) field.ErrorList { … }

func validateSamplingRate(rate int32, fldPath *field.Path) field.ErrorList { … }

func validateEndpoint(endpoint string, fldPath *field.Path) field.ErrorList { … }