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@@ -7,7 +7,7 @@
     s.parentNode.insertBefore(hm, s);
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 </script> <a href=https://github.com/kubeovn/docs/edit/master/docs/advance/with-ovn-ic.md title=编辑此页 class="md-content__button md-icon"> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M10 20H6V4h7v5h5v3.1l2-2V8l-6-6H6c-1.1 0-2 .9-2 2v16c0 1.1.9 2 2 2h4zm10.2-7c.1 0 .3.1.4.2l1.3 1.3c.2.2.2.6 0 .8l-1 1-2.1-2.1 1-1c.1-.1.2-.2.4-.2m0 3.9L14.1 23H12v-2.1l6.1-6.1z"/></svg> </a> <a href=https://github.com/kubeovn/docs/raw/master/docs/advance/with-ovn-ic.md title=查看本页的源代码 class="md-content__button md-icon"> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M17 18c.56 0 1 .44 1 1s-.44 1-1 1-1-.44-1-1 .44-1 1-1m0-3c-2.73 0-5.06 1.66-6 4 .94 2.34 3.27 4 6 4s5.06-1.66 6-4c-.94-2.34-3.27-4-6-4m0 6.5a2.5 2.5 0 0 1-2.5-2.5 2.5 2.5 0 0 1 2.5-2.5 2.5 2.5 0 0 1 2.5 2.5 2.5 2.5 0 0 1-2.5 2.5M9.27 20H6V4h7v5h5v4.07c.7.08 1.36.25 2 .49V8l-6-6H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h4.5a8.2 8.2 0 0 1-1.23-2"/></svg> </a> <h1 id=ovn-ic>使用 OVN-IC 进行多集群互联<a class=headerlink href=#ovn-ic title="Permanent link">&para;</a></h1> <p>Kube-OVN 支持通过 <a href=https://docs.ovn.org/en/latest/tutorials/ovn-interconnection.html>OVN-IC</a> 将两个 Kubernetes 集群 Pod 网络打通，打通后的两个集群内的 Pod 可以通过 Pod IP 进行直接通信。 Kube-OVN 使用隧道对跨集群流量进行封装，两个集群之间只要存在一组 IP 可达的机器即可完成容器网络的互通。</p> <blockquote> <p>该模式的多集群互联为 Overlay 网络功能，Underlay 网络如果想要实现集群互联需要底层基础设施做网络打通。</p> </blockquote> <p><img alt src=../../static/inter-connection.png></p> <h2 id=_1>前提条件<a class=headerlink href=#_1 title="Permanent link">&para;</a></h2> <ol> <li> <p>1.11.16 之后版本部署的集群默认关闭了集群互联的开关，需要在部署脚本 <code>install.sh</code> 里修改下列变量：</p> <div class=highlight><pre><span></span><code><span class=nv>ENABLE_IC</span><span class=o>=</span><span class=nb>true</span>
-</code></pre></div> <p>打开开关后部署集群，会出现组件 deployment ovn-ic-controller。 2. 自动互联模式下不同集群的子网 CIDR 不能相互重叠，默认子网需在安装时配置为不重叠的网段。若存在重叠需参考后续手动互联过程，只能将不重叠网段打通。 3. 需要存在一组机器可以被每个集群的 <code>kube-ovn-controller</code> 通过 IP 访问，用来部署跨集群互联的控制器。 4. 每个集群需要有一组可以通过 IP 进行跨集群互访的机器作为之后的网关节点。 5. 该功能只对默认 VPC 生效，用户自定义 VPC 无法使用互联功能。</p> </li> </ol> <h2 id=ovn-ic_1>部署单节点 OVN-IC 数据库<a class=headerlink href=#ovn-ic_1 title="Permanent link">&para;</a></h2> <h3 id=1>单节点部署方案 1<a class=headerlink href=#1 title="Permanent link">&para;</a></h3> <p>优先推荐方案 1，Kube-OVN v1.11.16 之后支持。</p> <p>该方法不区别 "单节点" 或者 "多节点高可用" 部署，控制器会以 Deployment 的形式部署在 master 节点上，集群 master 节点为 1，即单节点部署，master 节点为多个，即多节点高可用部署。</p> <p>先获取脚本 <code>install-ovn-ic.sh</code>，使用下面命令：</p> <div class=highlight><pre><span></span><code>wget<span class=w> </span>https://raw.githubusercontent.com/kubeovn/kube-ovn/release-1.12/dist/images/install-ic-server.sh
+</code></pre></div> <p>打开开关后部署集群，会出现组件 deployment ovn-ic-controller。</p> </li> <li> <p>自动互联模式下不同集群的子网 CIDR 不能相互重叠，默认子网需在安装时配置为不重叠的网段。若存在重叠需参考后续手动互联过程，只能将不重叠网段打通。</p> </li> <li>需要存在一组机器可以被每个集群的 <code>kube-ovn-controller</code> 通过 IP 访问，用来部署跨集群互联的控制器。</li> <li>每个集群需要有一组可以通过 IP 进行跨集群互访的机器作为之后的网关节点。</li> <li>该功能只对默认 VPC 生效，用户自定义 VPC 无法使用互联功能。</li> </ol> <h2 id=ovn-ic_1>部署单节点 OVN-IC 数据库<a class=headerlink href=#ovn-ic_1 title="Permanent link">&para;</a></h2> <h3 id=1>单节点部署方案 1<a class=headerlink href=#1 title="Permanent link">&para;</a></h3> <p>优先推荐方案 1，Kube-OVN v1.11.16 之后支持。</p> <p>该方法不区别 "单节点" 或者 "多节点高可用" 部署，控制器会以 Deployment 的形式部署在 master 节点上，集群 master 节点为 1，即单节点部署，master 节点为多个，即多节点高可用部署。</p> <p>先获取脚本 <code>install-ovn-ic.sh</code>，使用下面命令：</p> <div class=highlight><pre><span></span><code>wget<span class=w> </span>https://raw.githubusercontent.com/kubeovn/kube-ovn/release-1.12/dist/images/install-ic-server.sh
 </code></pre></div> <p>执行命令安装，其中 <code>TS_NUM</code> 表示集群互联的 ECMP Path 数量：</p> <div class=highlight><pre><span></span><code>sed<span class=w> </span><span class=s1>&#39;s/VERSION=.*/VERSION=v1.12.12/&#39;</span><span class=w> </span>dist/images/install-ic-server.sh<span class=w> </span><span class=p>|</span><span class=w> </span><span class=nv>TS_NUM</span><span class=o>=</span><span class=m>3</span><span class=w> </span>bash
 </code></pre></div> <p>执行成功输出如下：</p> <div class=highlight><pre><span></span><code>deployment.apps/ovn-ic-server<span class=w> </span>created
 Waiting<span class=w> </span><span class=k>for</span><span class=w> </span>deployment<span class=w> </span>spec<span class=w> </span>update<span class=w> </span>to<span class=w> </span>be<span class=w> </span>observed...
@@ -173,7 +173,7 @@
 </code></pre></div> <p>如果控制器是使用 deployment <code>ovn-ic-server</code> 部署：</p> <div class=highlight><pre><span></span><code>kubectl<span class=w> </span>delete<span class=w> </span>deployment<span class=w> </span>ovn-ic-server<span class=w> </span>-n<span class=w> </span>kube-system
 </code></pre></div> <p>然后在每个 master 节点上清理互联相关的 DB，命令如下：</p> <div class=highlight><pre><span></span><code>rm<span class=w> </span>-f<span class=w> </span>/etc/origin/ovn/ovn_ic_nb_db.db
 rm<span class=w> </span>-f<span class=w> </span>/etc/origin/ovn/ovn_ic_sb_db.db
-</code></pre></div> <p><a class=md-button href=https://jinshuju.net/f/lyrEow target=_blank><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M9.5 4C5.36 4 2 6.69 2 10c0 1.89 1.08 3.56 2.78 4.66L4 17l2.5-1.5c.89.31 1.87.5 2.91.5A5.2 5.2 0 0 1 9 14c0-3.31 3.13-6 7-6 .19 0 .38 0 .56.03C15.54 5.69 12.78 4 9.5 4m-3 2.5a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m5 0a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1M16 9c-3.31 0-6 2.24-6 5s2.69 5 6 5c.67 0 1.31-.08 1.91-.25L20 20l-.62-1.87C20.95 17.22 22 15.71 22 14c0-2.76-2.69-5-6-5m-2 2.5a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m4 0a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1"/></svg></span> 微信群</a> <a class=md-button href=https://communityinviter.com/apps/kube-ovn/kube-ovn/ target=_blank><span class=twemoji><svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M6 15a2 2 0 0 1-2 2 2 2 0 0 1-2-2 2 2 0 0 1 2-2h2zm1 0a2 2 0 0 1 2-2 2 2 0 0 1 2 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