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社区贡献</a></li></ul></nav></div></div></aside><main class="docMainContainer_gTbr"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="页面路径"><ul class="breadcrumbs" itemscope="" itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="主页面" class="breadcrumbs__link" href="/zh/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">开始使用</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item"><a class="breadcrumbs__link" itemprop="item" href="/zh/pages-for-subheaders/installation-and-upgrade"><span itemprop="name">安装和升级</span></a><meta itemprop="position" content="2"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item"><a class="breadcrumbs__link" itemprop="item" href="/zh/pages-for-subheaders/installation-references"><span itemprop="name">安装参考</span></a><meta itemprop="position" content="3"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">功能开关</span><meta itemprop="position" content="4"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">版本:Latest</span><div class="theme-doc-markdown markdown"><header><h1>功能开关</h1></header><p>使用功能开关(Feature Flag),你可以试用可选或实验性的功能并启用正在逐步淘汰的旧版功能。</p><p>要了解功能的值以及如何启用它们,请参阅<a href="/zh/pages-for-subheaders/enable-experimental-features">启用实验性功能</a>。</p><div class="theme-admonition theme-admonition-note alert alert--secondary admonition_LlT9"><div class="admonitionHeading_tbUL"><span class="admonitionIcon_kALy"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>备注</div><div class="admonitionContent_S0QG"><p>某些功能要求重新启动 Rancher 容器。Rancher UI 中标记了要求重启的功能。</p></div></div><p>以下是 Rancher 中可用的功能开关列表。如果你是从旧 Rancher 版本升级的,你可能会在 Rancher UI 中看到其他功能,例如 <code>proxy</code> 或 <code>dashboard</code>(均<a href="/zh/v2.5/reference-guides/installation-references/feature-flags">已中断</a>):</p><ul><li><code>continuous-delivery</code>:允许从 Fleet 中单独禁用 Fleet GitOps。有关详细信息,请参阅<a href="/zh/how-to-guides/advanced-user-guides/enable-experimental-features/continuous-delivery">持续交付</a>。</li><li><code>fleet</code>:v2.6 及更高版本的 Rancher 配置框架需要 Fleet。即使你在旧 Rancher 版本中禁用了该标志,该标志也将在升级时自动启用。有关详细信息,请参阅 <a href="/zh/how-to-guides/new-user-guides/deploy-apps-across-clusters/fleet">Fleet - GitOps at Scale</a>。</li><li><code>harvester</code>:管理 Virtualization Management 页面的访问。用户可以在该页面直接导航到 Harvester 集群并访问 Harvester UI。有关详细信息,请参阅 <a href="/zh/integrations-in-rancher/harvester">Harvester 集成</a>。</li><li><code>istio-virtual-service-ui</code>:启用<a href="/zh/how-to-guides/advanced-user-guides/enable-experimental-features/istio-traffic-management-features">可视界面</a>来创建、读取、更新和删除 Istio 虚拟服务和目标规则,这些都是 Istio 流量管理功能。</li><li><code>legacy</code>:启用 2.5.x 及更早版本的一组功能,这些功能正逐渐被新的实现淘汰。它们是已弃用以及后续可用于新版本的功能组合。新的 Rancher 安装会默认禁用此标志。如果你从以前版本的 Rancher 升级,此标志会启用。</li><li><code>multi-cluster-management</code>:允许配置和管理多个 Kubernetes 集群。此标志只能在安装时设置。后续无法启用或禁用它。</li><li><code>rke1-custom-node-cleanup</code>:清除已删除的 RKE1 自定义节点。建议你启用此标志,以防止已删除的节点尝试重新加入集群。</li><li><code>rke2</code>:启用配置 RKE2 集群。此标志默认启用。</li><li><code>token-hashing</code>:启用令牌哈希。启用后,会使用 SHA256 算法对现有 Token 和所有新 Token 进行哈希处理。一旦对 Token 进行哈希处理,就无法撤消操作。此标志在启用后无法禁用。有关详细信息,请参阅 <a href="/zh/reference-guides/about-the-api/api-tokens#%E4%BB%A4%E7%89%8C%E5%93%88%E5%B8%8C">API 令牌</a>。</li><li><code>unsupported-storage-drivers</code>:允许启用非默认启用的存储提供程序和卷插件。有关详细信息,请参阅<a href="/zh/how-to-guides/advanced-user-guides/enable-experimental-features/unsupported-storage-drivers">允许使用不受支持的存储驱动程序</a>。</li></ul><p>下表介绍了 Rancher 中功能开关的可用性和默认值。标记为“GA”的功能已普遍可用:</p><table><thead><tr><th>功能开关名称</th><th>默认值</th><th>状态</th><th>可用于</th></tr></thead><tbody><tr><td><code>continuous-delivery</code></td><td><code>true</code></td><td>GA</td><td>v2.6.0</td></tr><tr><td><code>fleet</code></td><td><code>true</code></td><td>不能禁用</td><td>v2.6.0</td></tr><tr><td><code>fleet</code></td><td><code>true</code></td><td>GA</td><td>v2.5.0</td></tr><tr><td><code>harvester</code></td><td><code>true</code></td><td>实验功能</td><td>v2.6.1</td></tr><tr><td><code>legacy</code></td><td>新安装:<code>false</code>;升级:<code>true</code></td><td>GA</td><td>v2.6.0</td></tr><tr><td><code>rke1-custom-node-cleanup</code></td><td><code>true</code></td><td>GA</td><td>v2.6.0</td></tr><tr><td><code>rke2</code></td><td><code>true</code></td><td>实验功能</td><td>v2.6.0</td></tr><tr><td><code>token-hashing</code></td><td>新安装:<code>false</code>;升级:<code>true</code></td><td>GA</td><td>v2.6.0</td></tr></tbody></table></div><footer class="theme-doc-footer 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