53 lines
1.8 KiB
Go
53 lines
1.8 KiB
Go
package utils
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import (
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"errors"
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"k8s.io/client-go/tools/clientcmd"
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clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
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)
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// CreateBasic creates a basic, general KubeConfig object that then can be extended
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func CreateBasic(serverURL, userName, clusterName string, caCert []byte) *clientcmdapi.Config {
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return &clientcmdapi.Config{
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Clusters: map[string]*clientcmdapi.Cluster{
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clusterName: {
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Server: serverURL,
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CertificateAuthorityData: caCert,
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},
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},
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Contexts: map[string]*clientcmdapi.Context{
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clusterName: {
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Cluster: clusterName,
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AuthInfo: userName,
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},
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},
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AuthInfos: map[string]*clientcmdapi.AuthInfo{},
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CurrentContext: clusterName,
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}
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}
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// CreateWithCerts creates a KubeConfig object with access to the API server with client certificates
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func CreateWithCerts(serverURL, userName, clusterName string, caCert []byte, clientKey []byte, clientCert []byte) *clientcmdapi.Config {
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config := CreateBasic(serverURL, userName, clusterName, caCert)
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config.AuthInfos[userName] = &clientcmdapi.AuthInfo{
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ClientKeyData: clientKey,
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ClientCertificateData: clientCert,
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}
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return config
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}
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// WriteKubeConfigFromSpec creates a kubeconfig object from a kubeConfigSpec and writes it to the given writer.
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func WriteKubeConfigFromSpec(serverURL, userName, clusterName, kubeconfigPath, kubeconfigName string, caCert []byte, clientKey []byte, clientCert []byte) error {
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// builds the KubeConfig object
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config := CreateWithCerts(serverURL, userName, clusterName, caCert, clientKey, clientCert)
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// writes the kubeconfig to disk if it not exists
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configBytes, err := clientcmd.Write(*config)
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if err != nil {
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return errors.New("failure while serializing admin kubeconfig")
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}
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return BytesToFile(kubeconfigPath, kubeconfigName, configBytes)
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}
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