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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| package bootstraptoken | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "time" | ||
|
|
||
| v1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| restclient "k8s.io/client-go/rest" | ||
| clientcmdapi "k8s.io/client-go/tools/clientcmd/api" | ||
| bootstrapapi "k8s.io/cluster-bootstrap/token/api" | ||
| bootstraputil "k8s.io/cluster-bootstrap/token/util" | ||
| ) | ||
|
|
||
| func GetTokenIDSecretFromBootstrapTokenStr(tokenStr string) (string, string, error) { | ||
| substrs := bootstraputil.BootstrapTokenRegexp.FindStringSubmatch(tokenStr) | ||
| if len(substrs) != 3 { // nolint: gomnd | ||
| return "", "", fmt.Errorf("the bootstrap token %q was not of the form %q", tokenStr, bootstrapapi.BootstrapTokenPattern) | ||
| } | ||
| tokenID := substrs[1] | ||
| tokenSecret := substrs[2] | ||
|
|
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| return tokenID, tokenSecret, nil | ||
| } | ||
|
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| func GenerateSecretFromBootstrapTokenStr(tokenStr string, ttl time.Duration) (*v1.Secret, error) { | ||
| tokenID, tokenSecret, err := GetTokenIDSecretFromBootstrapTokenStr(tokenStr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| secretData := map[string][]byte{ | ||
| bootstrapapi.BootstrapTokenIDKey: []byte(tokenID), | ||
| bootstrapapi.BootstrapTokenSecretKey: []byte(tokenSecret), | ||
| bootstrapapi.BootstrapTokenExpirationKey: []byte(time.Now().UTC().Add(ttl).Format(time.RFC3339)), | ||
| bootstrapapi.BootstrapTokenDescriptionKey: []byte("jsdj"), | ||
| bootstrapapi.BootstrapTokenExtraGroupsKey: []byte("system:bootstrappers:byoh"), | ||
| bootstrapapi.BootstrapTokenUsageSigningKey: []byte("true"), | ||
| bootstrapapi.BootstrapTokenUsageAuthentication: []byte("true"), | ||
| } | ||
|
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| bootstrapSecret := &v1.Secret{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: bootstraputil.BootstrapTokenSecretName(tokenID), | ||
| Namespace: metav1.NamespaceSystem, | ||
| }, | ||
| Type: bootstrapapi.SecretTypeBootstrapToken, | ||
| Data: secretData, | ||
| } | ||
| return bootstrapSecret, nil | ||
| } | ||
|
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| func GenerateBootstrapKubeconfigFromBootstrapToken(clientConfig *restclient.Config, tokenStr string) (*clientcmdapi.Config, error) { | ||
| tokenID, tokenSecret, err := GetTokenIDSecretFromBootstrapTokenStr(tokenStr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| // Build resulting kubeconfig. | ||
| kubeconfigData := clientcmdapi.Config{ | ||
| // Define a cluster stanza based on the bootstrap kubeconfig. | ||
| Clusters: map[string]*clientcmdapi.Cluster{"default-cluster": { | ||
| Server: clientConfig.Host, | ||
| InsecureSkipTLSVerify: clientConfig.Insecure, | ||
| CertificateAuthorityData: clientConfig.CAData, | ||
| }}, | ||
| // Define auth based on the obtained client cert. | ||
| AuthInfos: map[string]*clientcmdapi.AuthInfo{"default-auth": { | ||
| Token: fmt.Sprintf(tokenID + "." + tokenSecret), | ||
| }}, | ||
| // Define a context that connects the auth info and cluster, and set it as the default | ||
| Contexts: map[string]*clientcmdapi.Context{"default-context": { | ||
| Cluster: "default-cluster", | ||
| AuthInfo: "default-auth", | ||
| Namespace: "default", | ||
| }}, | ||
| CurrentContext: "default-context", | ||
| } | ||
|
|
||
| return &kubeconfigData, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| // Copyright 2022 VMware, Inc. All Rights Reserved. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
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| package encoder | ||
|
|
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| import ( | ||
| "encoding/base64" | ||
| "encoding/json" | ||
| "strings" | ||
| ) | ||
|
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| func DecodeFromBase64(v interface{}, enc string) error { | ||
| return json.NewDecoder(base64.NewDecoder(base64.StdEncoding, strings.NewReader(enc))).Decode(v) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| // Copyright 2022 VMware, Inc. All Rights Reserved. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
|
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| package encoder | ||
|
|
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| import ( | ||
| "bytes" | ||
| "encoding/base64" | ||
| "encoding/json" | ||
| ) | ||
|
|
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| func EncodeToBase64(v interface{}) (string, error) { | ||
| var buf bytes.Buffer | ||
| encoder := base64.NewEncoder(base64.StdEncoding, &buf) | ||
| err := json.NewEncoder(encoder).Encode(v) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| encoder.Close() | ||
| return buf.String(), nil | ||
| } |
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