k8s.io/kubernetes@v1.31.0-alpha.0.0.20240520171757-56147500dadc/pkg/controlplane/apiserver/admission/initializer.go (about)

     1  /*
     2  Copyright 2024 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package admission
    18  
    19  import (
    20  	"k8s.io/apimachinery/pkg/runtime/schema"
    21  	"k8s.io/apiserver/pkg/admission"
    22  	"k8s.io/apiserver/pkg/admission/initializer"
    23  	quota "k8s.io/apiserver/pkg/quota/v1"
    24  )
    25  
    26  // PluginInitializer is used for initialization of the generic controlplane admission plugins.
    27  type PluginInitializer struct {
    28  	quotaConfiguration         quota.Configuration
    29  	excludedAdmissionResources []schema.GroupResource
    30  }
    31  
    32  var _ admission.PluginInitializer = &PluginInitializer{}
    33  
    34  // NewPluginInitializer constructs new instance of PluginInitializer
    35  func NewPluginInitializer(
    36  	quotaConfiguration quota.Configuration,
    37  	excludedAdmissionResources []schema.GroupResource,
    38  ) *PluginInitializer {
    39  	return &PluginInitializer{
    40  		quotaConfiguration:         quotaConfiguration,
    41  		excludedAdmissionResources: excludedAdmissionResources,
    42  	}
    43  }
    44  
    45  // Initialize checks the initialization interfaces implemented by each plugin
    46  // and provide the appropriate initialization data
    47  func (i *PluginInitializer) Initialize(plugin admission.Interface) {
    48  	if wants, ok := plugin.(initializer.WantsQuotaConfiguration); ok {
    49  		wants.SetQuotaConfiguration(i.quotaConfiguration)
    50  	}
    51  
    52  	if wants, ok := plugin.(initializer.WantsExcludedAdmissionResources); ok {
    53  		wants.SetExcludedAdmissionResources(i.excludedAdmissionResources)
    54  	}
    55  }