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itemprop="name">安装要求</span><meta itemprop="position" content="3"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">版本:v2.7</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>安装要求</h1></header><p>本文描述了对需要安装 Rancher Server 的节点的软件、硬件和网络要求。Rancher Server 可以安装在单个节点或高可用的 Kubernetes 集群上。</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>重要提示:</div><div class="admonitionContent_S0QG"><p>如果你需要在 Kubernetes 集群上安装 Rancher,该节点的要求与用于运行应用和服务的<a href="/zh/how-to-guides/new-user-guides/kubernetes-clusters-in-rancher-setup/node-requirements-for-rancher-managed-clusters">下游集群的节点要求</a>不同。</p></div></div><p>请确保安装 Rancher Server 的节点满足以下要求:</p><ul><li><a href="#%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F%E5%92%8C%E5%AE%B9%E5%99%A8%E8%BF%90%E8%A1%8C%E6%97%B6%E8%A6%81%E6%B1%82">操作系统和容器运行时要求</a><ul><li><a href="#rke-%E8%A6%81%E6%B1%82">RKE 要求</a></li><li><a href="#k3s-%E8%A6%81%E6%B1%82">K3s 要求</a></li><li><a href="#rke2-%E8%A6%81%E6%B1%82">RKE2 要求</a></li><li><a href="#%E5%AE%89%E8%A3%85-docker">安装 Docker</a></li></ul></li><li><a href="#%E7%A1%AC%E4%BB%B6%E8%A6%81%E6%B1%82">硬件要求</a></li><li><a href="#cpu-%E5%92%8C%E5%86%85%E5%AD%98">CPU 和内存</a><ul><li><a href="#rke-%E5%92%8C%E6%89%98%E7%AE%A1-kubernetes">RKE 和托管 Kubernetes</a></li><li><a href="#k3s-kubernetes">K3s Kubernetes</a></li><li><a href="#rke2-kubernetes">RKE2 Kubernetes</a></li><li><a href="#docker">Docker</a></li></ul></li><li><a href="#ingress">Ingress</a></li><li><a href="#%E7%A3%81%E7%9B%98">磁盘</a></li><li><a href="#%E7%BD%91%E7%BB%9C%E8%A6%81%E6%B1%82">网络要求</a><ul><li><a href="#%E8%8A%82%E7%82%B9-ip-%E5%9C%B0%E5%9D%80">节点 IP 地址</a></li><li><a href="#%E7%AB%AF%E5%8F%A3%E8%A6%81%E6%B1%82">端口要求</a></li></ul></li><li><a href="#dockershim-%E6%94%AF%E6%8C%81">Dockershim 支持</a></li></ul><p>如需获取在生产环境中运行 Rancher Server 的最佳实践列表,请参见<a href="/zh/reference-guides/best-practices/rancher-server/tips-for-running-rancher">最佳实践</a>。</p><p>Rancher UI 在基于 Firefox 或 Chromium 的浏览器(Chrome、Edge、Opera、Brave 等)中效果最佳。</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="操作系统和容器运行时要求">操作系统和容器运行时要求<a class="hash-link" href="#操作系统和容器运行时要求" title="标题的直接链接">​</a></h2><p>Rancher 兼容当前所有的主流 Linux 发行版。</p><p>运行 RKE Kubernetes 集群的节点需要安装 Docker。RKE2 或 K3s 集群不需要它。</p><p>Rancher 需要安装在支持的 Kubernetes 版本上。如需了解你使用的 Rancher 版本支持哪些 Kubernetes 版本,请参见<a href="https://rancher.com/support-maintenance-terms/" target="_blank" rel="noopener noreferrer">支持维护条款</a>。</p><p>如需了解各个 Rancher 版本通过了哪些操作系统和 Docker 版本测试,请参见<a href="https://rancher.com/support-maintenance-terms/" target="_blank" rel="noopener noreferrer">支持和维护条款</a>。</p><p>所有支持的操作系统都使用 64-bit x86 架构。</p><p>请安装 <code>ntp</code>(Network Time Protocol),以防止在客户端和服务器之间由于时间不同步造成的证书验证错误。</p><p>某些 Linux 发行版的默认防火墙规则可能会阻止 Kubernetes 集群内的通信。从 Kubernetes v1.19 开始,你必须关闭 firewalld,因为它与 Kubernetes 网络插件冲突。</p><p>如果你不太想这样做的话,你可以查看<a href="https://github.com/rancher/rancher/issues/28840" target="_blank" rel="noopener noreferrer">相关问题</a>中的建议。某些用户已能成功<a href="https://github.com/rancher/rancher/issues/28840#issuecomment-787404822" target="_blank" rel="noopener noreferrer">使用 ACCEPT 策略 为 Pod CIDR 创建一个独立的 firewalld 区域</a>。</p><p>如果你需要在 ARM64 上使用 Rancher,请参见<a href="/zh/how-to-guides/advanced-user-guides/enable-experimental-features/rancher-on-arm64">在 ARM64(实验功能)上运行 Rancher</a>。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="rke-要求">RKE 要求<a class="hash-link" href="#rke-要求" title="标题的直接链接">​</a></h3><p>容器运行时方面,RKE 可以兼容当前的所有 Docker 版本。</p><p>有关详细信息,请参阅<a href="/zh/getting-started/installation-and-upgrade/installation-requirements/install-docker">安装 Docker</a>。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="k3s-要求">K3s 要求<a class="hash-link" href="#k3s-要求" title="标题的直接链接">​</a></h3><p>对于容器运行时,K3s 默认附带了自己的 containerd。你也可以将 K3s 配置为使用已安装的 Docker 运行时。有关在 Docker 中使用 K3s 的更多信息,请参阅 <a href="https://docs.k3s.io/advanced#using-docker-as-the-container-runtime" target="_blank" rel="noopener noreferrer">K3s 文档</a>。</p><p>Rancher 需要安装在支持的 Kubernetes 版本上。如需了解你使用的 Rancher 版本支持哪些 Kubernetes 版本,请参见<a href="https://rancher.com/support-maintenance-terms/" target="_blank" rel="noopener noreferrer">支持维护条款</a>。如需指定 K3s 版本,请在运行 K3s 安装脚本时,使用 <code>INSTALL_K3S_VERSION</code> 环境变量。</p><p>如果你使用 <strong>Raspbian Buster</strong> 在 K3s 集群上安装 Rancher,请按照<a href="https://rancher.com/docs/k3s/latest/en/advanced/#enabling-legacy-iptables-on-raspbian-buster" target="_blank" rel="noopener noreferrer">这些步骤</a>切换到旧版 iptables。</p><p>如果你使用 Alpine Linux 的 K3s 集群上安装 Rancher,请按照<a href="https://rancher.com/docs/k3s/latest/en/advanced/#additional-preparation-for-alpine-linux-setup" target="_blank" rel="noopener noreferrer">这些步骤</a> 进行其他设置。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="rke2-要求">RKE2 要求<a class="hash-link" href="#rke2-要求" title="标题的直接链接">​</a></h3><p>对于容器运行时,RKE2 附带了自己的 containerd。RKE2 安装不需要 Docker。</p><p>如需了解 RKE2 通过了哪些操作系统版本的测试,请参见<a href="https://rancher.com/support-maintenance-terms/" target="_blank" rel="noopener noreferrer">支持和维护条款</a>。</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="硬件要求">硬件要求<a class="hash-link" href="#硬件要求" title="标题的直接链接">​</a></h2><p>本节描述安装 Rancher Server 的节点的 CPU、内存和磁盘要求。</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="cpu-和内存">CPU 和内存<a class="hash-link" href="#cpu-和内存" title="标题的直接链接">​</a></h2><p>硬件要求根据你的 Rancher 部署规模而定。请根据要求配置每个节点。通过单节点容器安装 Rancher,和在 Kubernetes 集群上安装 Rancher 的要求有所不同。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="rke-和托管-kubernetes">RKE 和托管 Kubernetes<a class="hash-link" href="#rke-和托管-kubernetes" title="标题的直接链接">​</a></h3><p>这些 CPU 和内存要求适用于每个安装 Rancher Server 的 Kubernetes 集群中的主机。</p><p>这些要求适用于 RKE Kubernetes 集群以及托管的 Kubernetes 集群,例如 EKS。</p><table><thead><tr><th>部署规模</th><th>集群</th><th>节点</th><th>vCPUs</th><th>内存</th></tr></thead><tbody><tr><td>小</td><td>最多 150 个</td><td>最多 1500 个</td><td>2</td><td>8 GB</td></tr><tr><td>中</td><td>最多 300 个</td><td>最多 3,000 个</td><td>4</td><td>16 GB</td></tr><tr><td>大</td><td>最多 500 个</td><td>最多 5,000 个</td><td>8</td><td>32 GB</td></tr><tr><td>特大</td><td>最多 1,000 个</td><td>最多 10,000 个</td><td>16</td><td>64 GB</td></tr><tr><td>超大</td><td>最多 2,000 个</td><td>最多 20,000 个</td><td>32</td><td>128 GB</td></tr></tbody></table><p>每个用例和环境都是不同的。请<a href="https://rancher.com/contact/" target="_blank" rel="noopener noreferrer">联系 Rancher</a> 来审核你的情况。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="k3s-kubernetes">K3s Kubernetes<a class="hash-link" href="#k3s-kubernetes" title="标题的直接链接">​</a></h3><p>这些 CPU 和内存要求适用于每个<a href="/zh/pages-for-subheaders/install-upgrade-on-a-kubernetes-cluster">安装 Rancher Server 的 Kubernetes 集群</a>中的主机。</p><table><thead><tr><th>部署规模</th><th>集群</th><th>节点</th><th>vCPUs</th><th>内存</th><th>数据库大小</th></tr></thead><tbody><tr><td>小</td><td>最多 150 个</td><td>最多 1500 个</td><td>2</td><td>8 GB</td><td>2 核,4 GB + 1,000 IOPS</td></tr><tr><td>中</td><td>最多 300 个</td><td>最多 3,000 个</td><td>4</td><td>16 GB</td><td>2 核,4 GB + 1,000 IOPS</td></tr><tr><td>大</td><td>最多 500 个</td><td>最多 5,000 个</td><td>8</td><td>32 GB</td><td>2 核,4 GB + 1,000 IOPS</td></tr><tr><td>特大</td><td>最多 1,000 个</td><td>最多 10,000 个</td><td>16</td><td>64 GB</td><td>2 核,4 GB + 1,000 IOPS</td></tr><tr><td>超大</td><td>最多 2,000 个</td><td>最多 20,000 个</td><td>32</td><td>128 GB</td><td>2 核,4 GB + 1,000 IOPS</td></tr></tbody></table><p>每个用例和环境都是不同的。请<a href="https://rancher.com/contact/" target="_blank" rel="noopener noreferrer">联系 Rancher</a> 来审核你的情况。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="rke2-kubernetes">RKE2 Kubernetes<a class="hash-link" href="#rke2-kubernetes" title="标题的直接链接">​</a></h3><p>这些 CPU 和内存要求适用于安装了 RKE2 的每个实例。最低配置要求如下:</p><table><thead><tr><th>部署规模</th><th>集群</th><th>节点</th><th>vCPUs</th><th>内存</th></tr></thead><tbody><tr><td>小</td><td>最多 5 个</td><td>最多 50 个</td><td>2</td><td>5 GB</td></tr><tr><td>中</td><td>最多 15 个</td><td>最多 200 个</td><td>3</td><td>9 GB</td></tr></tbody></table><h3 class="anchor anchorWithStickyNavbar_LWe7" id="docker">Docker<a class="hash-link" href="#docker" title="标题的直接链接">​</a></h3><p>这些 CPU 和内存要求适用于<a href="/zh/pages-for-subheaders/rancher-on-a-single-node-with-docker">单节点</a>安装 Rancher 的主机。</p><table><thead><tr><th>部署规模</th><th>集群</th><th>节点</th><th>vCPUs</th><th>内存</th></tr></thead><tbody><tr><td>小</td><td>最多 5 个</td><td>最多 50 个</td><td>1</td><td>4 GB</td></tr><tr><td>中</td><td>最多 15 个</td><td>最多 200 个</td><td>2</td><td>8 GB</td></tr></tbody></table><h2 class="anchor anchorWithStickyNavbar_LWe7" id="ingress">Ingress<a class="hash-link" href="#ingress" title="标题的直接链接">​</a></h2><p>安装 Rancher 的 Kubernetes 集群中的每个节点都应该运行一个 Ingress。</p><p>Ingress 需要部署为 DaemonSet 以确保负载均衡器能成功把流量转发到各个节点。</p><p>如果是 RKE,RKE2 和 K3s 安装,你不需要手动安装 Ingress,因为它是默认安装的。</p><p>对于托管的 Kubernetes 集群(EKS、GKE、AKS),你需要设置 Ingress。</p><ul><li><strong>Amazon EKS</strong>:<a href="/zh/getting-started/installation-and-upgrade/install-upgrade-on-a-kubernetes-cluster/rancher-on-amazon-eks">在 Amazon EKS 上安装 Rancher 以及如何安装 Ingress 以访问 Rancher Server</a>。</li><li><strong>AKS</strong>:<a href="/zh/getting-started/installation-and-upgrade/install-upgrade-on-a-kubernetes-cluster/rancher-on-aks">使用 Azure Kubernetes 服务安装 Rancher 以及如何安装 Ingress 以访问 Rancher Server</a>。</li><li><strong>GKE</strong>:<a href="/zh/getting-started/installation-and-upgrade/install-upgrade-on-a-kubernetes-cluster/rancher-on-gke">使用 GKE 安装 Rancher 以及如何安装 Ingress 以访问 Rancher Server</a>。</li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="磁盘">磁盘<a class="hash-link" href="#磁盘" title="标题的直接链接">​</a></h2><p>etcd 在集群中的性能决定了 Rancher 的性能。因此,为了获得最佳速度,我们建议使用 SSD 磁盘来支持 Rancher 管理的 Kubernetes 集群。在云提供商上,你还需使用能获得最大 IOPS 的最小大小。在较大的集群中,请考虑使用专用存储设备存储 etcd 数据和 wal 目录。</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="网络要求">网络要求<a class="hash-link" href="#网络要求" title="标题的直接链接">​</a></h2><p>本节描述了安装 Rancher Server 的节点的网络要求。</p><div class="theme-admonition theme-admonition-caution alert alert--warning admonition_LlT9"><div class="admonitionHeading_tbUL"><span class="admonitionIcon_kALy"><svg viewBox="0 0 16 16"><path fill-rule="evenodd" d="M8.893 1.5c-.183-.31-.52-.5-.887-.5s-.703.19-.886.5L.138 13.499a.98.98 0 0 0 0 1.001c.193.31.53.501.886.501h13.964c.367 0 .704-.19.877-.5a1.03 1.03 0 0 0 .01-1.002L8.893 1.5zm.133 11.497H6.987v-2.003h2.039v2.003zm0-3.004H6.987V5.987h2.039v4.006z"></path></svg></span>警告</div><div class="admonitionContent_S0QG"><p>如果包含 Rancher 的服务器带有 <code>X-Frame-Options=DENY</code> 标头,在升级旧版 UI 之后,Rancher UI 中的某些页面可能无法渲染。这是因为某些旧版页面在新 UI 中是以 iFrames 模式嵌入的。</p></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="节点-ip-地址">节点 IP 地址<a class="hash-link" href="#节点-ip-地址" title="标题的直接链接">​</a></h3><p>无论你是在单个节点还是高可用集群上安装 Rancher,每个节点都应配置一个静态 IP。如果使用 DHCP,则每个节点都应该有一个 DHCP 预留,以确保节点分配到相同的 IP 地址。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="端口要求">端口要求<a class="hash-link" href="#端口要求" title="标题的直接链接">​</a></h3><p>为了确保能正常运行,Rancher 需要在 Rancher 节点和下游 Kubernetes 集群节点上开放一些端口。不同集群类型的 Rancher 和下游集群的所有必要端口,请参见<a href="/zh/getting-started/installation-and-upgrade/installation-requirements/port-requirements">端口要求</a>。</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="dockershim-支持">Dockershim 支持<a class="hash-link" href="#dockershim-支持" title="标题的直接链接">​</a></h2><p>有关 Dockershim 支持的详情,请参见<a href="/zh/getting-started/installation-and-upgrade/installation-requirements/dockershim">此页面</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/pages-for-subheaders/installation-requirements.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 datetime="2022-11-23T06:39:30.000Z">2022年11月23日</time></b> <!-- -->更新</span></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="文档分页导航"><a class="pagination-nav__link pagination-nav__link--prev" href="/zh/pages-for-subheaders/installation-and-upgrade"><div class="pagination-nav__sublabel">上一页</div><div class="pagination-nav__label">安装/升级 Rancher</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/zh/getting-started/installation-and-upgrade/installation-requirements/install-docker"><div class="pagination-nav__sublabel">下一页</div><div class="pagination-nav__label">安装 Docker</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#操作系统和容器运行时要求" class="table-of-contents__link toc-highlight">操作系统和容器运行时要求</a><ul><li><a href="#rke-要求" class="table-of-contents__link toc-highlight">RKE 要求</a></li><li><a href="#k3s-要求" class="table-of-contents__link toc-highlight">K3s 要求</a></li><li><a href="#rke2-要求" class="table-of-contents__link toc-highlight">RKE2 要求</a></li></ul></li><li><a href="#硬件要求" class="table-of-contents__link toc-highlight">硬件要求</a></li><li><a href="#cpu-和内存" class="table-of-contents__link toc-highlight">CPU 和内存</a><ul><li><a href="#rke-和托管-kubernetes" class="table-of-contents__link toc-highlight">RKE 和托管 Kubernetes</a></li><li><a href="#k3s-kubernetes" class="table-of-contents__link toc-highlight">K3s Kubernetes</a></li><li><a href="#rke2-kubernetes" class="table-of-contents__link toc-highlight">RKE2 Kubernetes</a></li><li><a href="#docker" class="table-of-contents__link toc-highlight">Docker</a></li></ul></li><li><a href="#ingress" class="table-of-contents__link toc-highlight">Ingress</a></li><li><a href="#磁盘" class="table-of-contents__link toc-highlight">磁盘</a></li><li><a href="#网络要求" class="table-of-contents__link toc-highlight">网络要求</a><ul><li><a href="#节点-ip-地址" class="table-of-contents__link toc-highlight">节点 IP 地址</a></li><li><a href="#端口要求" class="table-of-contents__link toc-highlight">端口要求</a></li></ul></li><li><a href="#dockershim-支持" class="table-of-contents__link toc-highlight">Dockershim 支持</a></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2022 SUSE Rancher. 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