96 lines
3.3 KiB
Go
96 lines
3.3 KiB
Go
/*
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Copyright 2026.
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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 main
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import (
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"errors"
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"flag"
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"net/http"
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"net/url"
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"strings"
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bao "github.com/openbao/openbao/api/v2"
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ctrl "sigs.k8s.io/controller-runtime"
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"git.ddupan.top/panxiao81/ayatori/internal/database/adapter/openbao"
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)
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type openBaoOptions struct {
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address string
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caCert string
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mount string
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role string
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identity openbao.KubernetesIdentity
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}
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func (o *openBaoOptions) bindFlags(flags *flag.FlagSet) {
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flags.StringVar(&o.address, "openbao-address", "", "OpenBao HTTPS 地址；为空时不启用认证会话")
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flags.StringVar(&o.caCert, "openbao-ca-cert", "", "OpenBao 公开 CA PEM 路径；默认使用系统信任根")
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flags.StringVar(&o.mount, "openbao-auth-mount", "kubernetes", "OpenBao Kubernetes auth mount")
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flags.StringVar(&o.role, "openbao-auth-role", "", "OpenBao 登录 role")
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flags.StringVar(&o.identity.Namespace, "openbao-service-account-namespace", "",
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"TokenRequest 的固定 ServiceAccount namespace")
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flags.StringVar(&o.identity.ServiceAccount, "openbao-service-account-name", "", "TokenRequest 的固定 ServiceAccount 名称")
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flags.StringVar(&o.identity.Audience, "openbao-token-audience", "openbao", "SA JWT audience，须匹配 OpenBao role")
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}
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func (o openBaoOptions) client() (*bao.Client, error) {
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address, err := url.Parse(o.address)
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if err != nil || address.Scheme != "https" || address.Host == "" || address.User != nil ||
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address.RawQuery != "" || address.ForceQuery || address.Fragment != "" ||
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(address.Path != "" && address.Path != "/") {
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return nil, errors.New("OpenBao address must be an absolute HTTPS URL without credentials, query, fragment or path")
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}
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// NewConfig 不读取 BAO_TOKEN/BAO_SKIP_VERIFY 等环境配置，不允许旁路 Kubernetes 身份或 TLS。
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config := bao.NewConfig()
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config.Address = strings.TrimSuffix(o.address, "/")
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if config.Error != nil || config.ConfigureTLS(&bao.TLSConfig{CACert: o.caCert}) != nil {
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return nil, errors.New("cannot configure OpenBao TLS trust")
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}
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client, err := bao.NewClient(config)
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if err != nil {
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return nil, errors.New("cannot construct OpenBao client")
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}
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return client, nil
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}
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func setupOpenBaoAuthentication(manager ctrl.Manager, options openBaoOptions) error {
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if options.address == "" {
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return nil
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}
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client, err := options.client()
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if err != nil {
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return err
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}
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// 复用 manager 已装配的 Kubernetes client，不重复加载配置或创建客户端。
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session, err := openbao.NewKubernetesSession(
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client, manager.GetClient(), options.mount, options.role, options.identity,
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)
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if err != nil {
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return err
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}
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if err := manager.Add(session); err != nil {
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return err
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}
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return manager.AddReadyzCheck("openbao-auth", func(_ *http.Request) error {
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if !session.Ready() {
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return errors.New("OpenBao Kubernetes authentication unavailable")
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}
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return nil
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})
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}
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