93 lines
2.1 KiB
Go
93 lines
2.1 KiB
Go
// Copyright 2020 the Pinniped contributors. All Rights Reserved.
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// SPDX-License-Identifier: Apache-2.0
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package generator
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import (
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"crypto/rand"
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appsv1 "k8s.io/api/apps/v1"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime/schema"
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configv1alpha1 "go.pinniped.dev/generated/1.19/apis/supervisor/config/v1alpha1"
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)
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const (
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symmetricKeySecretType = "secrets.pinniped.dev/symmetric"
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symmetricKeySecretDataKey = "key"
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symmetricKeySize = 32
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opKind = "OIDCProvider"
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)
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func generateSymmetricKey() ([]byte, error) {
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b := make([]byte, symmetricKeySize)
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if _, err := rand.Read(b); err != nil {
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return nil, err
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}
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return b, nil
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}
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func isValid(secret *corev1.Secret) bool {
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if secret.Type != symmetricKeySecretType {
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return false
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}
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data, ok := secret.Data[symmetricKeySecretDataKey]
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if !ok {
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return false
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}
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if len(data) != symmetricKeySize {
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return false
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}
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return true
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}
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func secretDataFunc() (map[string][]byte, error) {
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symmetricKey, err := generateKey()
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if err != nil {
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return nil, err
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}
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return map[string][]byte{
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symmetricKeySecretDataKey: symmetricKey,
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}, nil
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}
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func generateSecret(namespace, name string, labels map[string]string, secretDataFunc func() (map[string][]byte, error), owner metav1.Object) (*corev1.Secret, error) {
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secretData, err := secretDataFunc()
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if err != nil {
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return nil, err
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}
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deploymentGVK := schema.GroupVersionKind{
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Group: appsv1.SchemeGroupVersion.Group,
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Version: appsv1.SchemeGroupVersion.Version,
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Kind: "Deployment",
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}
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return &corev1.Secret{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: namespace,
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OwnerReferences: []metav1.OwnerReference{
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*metav1.NewControllerRef(owner, deploymentGVK),
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},
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Labels: labels,
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},
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Type: symmetricKeySecretType,
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Data: secretData,
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}, nil
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}
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// isOPCControlle returns whether the provided obj is controlled by an OPC.
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func isOPControllee(obj metav1.Object) bool {
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controller := metav1.GetControllerOf(obj)
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return controller != nil &&
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controller.APIVersion == configv1alpha1.SchemeGroupVersion.String() &&
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controller.Kind == opKind
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}
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