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namecondition.go
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namecondition.go
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package namespaceconditions
import (
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apiserver/pkg/admission"
)
// pluginHandlerWithNamespaceNameConditions skips running admission plugins if they deal in the namespaceToExclude list
type pluginHandlerWithNamespaceNameConditions struct {
admissionPlugin admission.Interface
namespacesToExclude sets.String
}
func (p pluginHandlerWithNamespaceNameConditions) Handles(operation admission.Operation) bool {
return p.admissionPlugin.Handles(operation)
}
// Admit performs a mutating admission control check and emit metrics.
func (p pluginHandlerWithNamespaceNameConditions) Admit(a admission.Attributes) error {
if !p.shouldRunAdmission(a) {
return nil
}
mutatingHandler, ok := p.admissionPlugin.(admission.MutationInterface)
if !ok {
return nil
}
return mutatingHandler.Admit(a)
}
// Validate performs a non-mutating admission control check and emits metrics.
func (p pluginHandlerWithNamespaceNameConditions) Validate(a admission.Attributes) error {
if !p.shouldRunAdmission(a) {
return nil
}
validatingHandler, ok := p.admissionPlugin.(admission.ValidationInterface)
if !ok {
return nil
}
return validatingHandler.Validate(a)
}
func (p pluginHandlerWithNamespaceNameConditions) shouldRunAdmission(attr admission.Attributes) bool {
namespaceName := attr.GetNamespace()
if p.namespacesToExclude.Has(namespaceName) {
return false
}
if (attr.GetResource().GroupResource() == schema.GroupResource{Resource: "namespaces"}) && p.namespacesToExclude.Has(attr.GetName()) {
return false
}
return true
}