d1fec72a32
The io/ioutil package has been deprecated as of Go 1.16 [1]. This commit replaces the existing io/ioutil functions with their new definitions in io and os packages. [1]: https://golang.org/doc/go1.16#ioutil Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
/*
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Copyright 2020 KubeSphere Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cluster
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import (
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"os"
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"k8s.io/client-go/rest"
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"k8s.io/client-go/tools/clientcmd"
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"k8s.io/client-go/tools/clientcmd/api"
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)
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func buildKubeconfigFromRestConfig(config *rest.Config) ([]byte, error) {
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apiConfig := api.NewConfig()
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apiCluster := &api.Cluster{
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Server: config.Host,
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CertificateAuthorityData: config.CAData,
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}
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// generated kubeconfig will be used by cluster federation, CAFile is not
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// accepted by kubefed, so we need read CAFile
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if len(apiCluster.CertificateAuthorityData) == 0 && len(config.CAFile) != 0 {
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caData, err := os.ReadFile(config.CAFile)
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if err != nil {
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return nil, err
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}
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apiCluster.CertificateAuthorityData = caData
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}
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apiConfig.Clusters["kubernetes"] = apiCluster
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apiConfig.AuthInfos["kubernetes-admin"] = &api.AuthInfo{
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ClientCertificateData: config.CertData,
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ClientKeyData: config.KeyData,
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Token: config.BearerToken,
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TokenFile: config.BearerTokenFile,
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Username: config.Username,
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Password: config.Password,
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}
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apiConfig.Contexts["kubernetes-admin@kubernetes"] = &api.Context{
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Cluster: "kubernetes",
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AuthInfo: "kubernetes-admin",
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}
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apiConfig.CurrentContext = "kubernetes-admin@kubernetes"
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return clientcmd.Write(*apiConfig)
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}
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