k8s.io/apiserver@v0.31.1/pkg/server/dynamiccertificates/dynamic_sni_content.go (about)

     1  /*
     2  Copyright 2019 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 dynamiccertificates
    18  
    19  // DynamicFileSNIContent provides a SNICertKeyContentProvider that can dynamically react to new file content
    20  type DynamicFileSNIContent struct {
    21  	*DynamicCertKeyPairContent
    22  	sniNames []string
    23  }
    24  
    25  var _ SNICertKeyContentProvider = &DynamicFileSNIContent{}
    26  var _ ControllerRunner = &DynamicFileSNIContent{}
    27  
    28  // NewDynamicSNIContentFromFiles returns a dynamic SNICertKeyContentProvider based on a cert and key filename and explicit names
    29  func NewDynamicSNIContentFromFiles(purpose, certFile, keyFile string, sniNames ...string) (*DynamicFileSNIContent, error) {
    30  	servingContent, err := NewDynamicServingContentFromFiles(purpose, certFile, keyFile)
    31  	if err != nil {
    32  		return nil, err
    33  	}
    34  
    35  	ret := &DynamicFileSNIContent{
    36  		DynamicCertKeyPairContent: servingContent,
    37  		sniNames:                  sniNames,
    38  	}
    39  	if err := ret.loadCertKeyPair(); err != nil {
    40  		return nil, err
    41  	}
    42  
    43  	return ret, nil
    44  }
    45  
    46  // SNINames returns explicitly set SNI names for the certificate. These are not dynamic.
    47  func (c *DynamicFileSNIContent) SNINames() []string {
    48  	return c.sniNames
    49  }