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itemprop="name">Kubernetes 安全最佳实践</span><meta itemprop="position" content="3"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">版本：Latest</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">本页总览</button></div><div class="theme-doc-markdown markdown"><header><h1>Kubernetes 安全最佳实践</h1></header><h3 class="anchor anchorWithStickyNavbar_LWe7" id="限制云元数据-api-访问">限制云元数据 API 访问<a href="#限制云元数据-api-访问" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接"></a></h3><p>AWS、Azure、DigitalOcean 或 GCP 等云提供商通常会在本地向实例公开元数据服务。默认情况下，此端点可被运行在云实例上的 pod 访问，包括在托管的 Kubernetes（如 EKS、AKS、DigitalOcean Kubernetes 或 GKE）中的 pod，并且可以包含该节点的云凭证、配置数据（如 kubelet 凭证）以及其他敏感数据。为了降低在云平台上运行的这种风险，请遵循 <a href="https://kubernetes.io/docs/tasks/administer-cluster/securing-a-cluster/#restricting-cloud-metadata-api-access" target="_blank" rel="noopener noreferrer">Kubernetes 安全建议</a>，即限制授予实例凭证的权限，使用网络策略限制 pod 对元数据 API 的访问，并避免使用配置数据来传递密文。</p><p>建议你参阅你使用的云提供商的安全最佳实践，获取限制对云实例元数据 API 访问的建议和详情。</p><p>要获取更多参考资料，请参阅 MITRE ATT&CK 知识库 - <a href="https://attack.mitre.org/techniques/T1552/005/" target="_blank" rel="noopener noreferrer">不安全凭证：云实例元数据 API</a>。</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/rancher/rancher-docs/edit/main/docs/reference-guides/rancher-security/kubernetes-security-best-practices.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>编辑此页</a></div><div class="col lastUpdated_vwxv"><span class="theme-last-updated">最后<!-- -->于 <b><time 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