https://blog.treesir.pub/tags/rancher/Recent content in Rancher on Zayn's BlogHugo -- gohugo.iozh-cnyangzun@treesir.pub (Zayn)yangzun@treesir.pub (Zayn)2021-2026 ZaynTue, 08 Jun 2021 08:45:22 +0800https://blog.treesir.pub/posts/rancher-upgrade-docker/Sat, 16 Jan 2021 14:39:59 +0800yangzun@treesir.pub (Zayn)https://blog.treesir.pub/posts/rancher-upgrade-docker/<h2 class="relative group">环境配置 <div id="环境配置" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e7%8e%af%e5%a2%83%e9%85%8d%e7%bd%ae" aria-label="锚点">#</a> </span> </h2> <ul> <li><strong>操作系统</strong>：CentOS 7.9.2009</li> <li><strong>Docker 版本</strong>：18.09.9</li> </ul> <h2 class="relative group">问题复现 <div id="问题复现" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e9%97%ae%e9%a2%98%e5%a4%8d%e7%8e%b0" aria-label="锚点">#</a> </span> </h2> <h2 class="relative group">安装 Rancher <div id="安装-rancher" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e5%ae%89%e8%a3%85-rancher" aria-label="锚点">#</a> </span> </h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">docker pull rancher/rancher:v2.3.5 </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl">docker run -d <span class="se">\ </span></span></span><span class="line"><span class="cl"><span class="se"></span>--restart<span class="o">=</span>unless-stopped <span class="se">\ </span></span></span><span class="line"><span class="cl"><span class="se"></span>--name rancher <span class="se">\ </span></span></span><span class="line"><span class="cl"><span class="se"></span>-p 80:80 -p 443:443 <span class="se">\ </span></span></span><span class="line"><span class="cl"><span class="se"></span>--privileged <span class="se">\ </span></span></span><span class="line"><span class="cl"><span class="se"></span>rancher/rancher:v2.3.5 </span></span></code></pre></div><p> <figure> <img class="my-0 rounded-md" loading="lazy" alt="image-20210116134244336" src="https://cdn.treesir.pub/img/image-20210116134244336.png"> </figure> </p>https://blog.treesir.pub/posts/rancher-import-cluster-fix/Tue, 08 Jun 2021 08:45:22 +0800yangzun@treesir.pub (Zayn)https://blog.treesir.pub/posts/rancher-import-cluster-fix/<h2 class="relative group">环境配置 <div id="环境配置" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e7%8e%af%e5%a2%83%e9%85%8d%e7%bd%ae" aria-label="锚点">#</a> </span> </h2> <ul> <li><strong>Kubernetes 版本</strong>：v1.20.4 (KubeKey 部署)</li> <li><strong>操作系统</strong>：CentOS 7.9.2009</li> <li><strong>Rancher 版本</strong>：v2.4.15</li> </ul> <h2 class="relative group">准备 Kubernetes 测试环境 <div id="准备-kubernetes-测试环境" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e5%87%86%e5%a4%87-kubernetes-%e6%b5%8b%e8%af%95%e7%8e%af%e5%a2%83" aria-label="锚点">#</a> </span> </h2> <blockquote> <p>本次使用 KubeKey 进行一键部署。KubeKey 底层集群部署基于 kubeadm，详细信息可参考 <a href="https://github.com/kubesphere/kubekey.git" target="_blank" >GitHub 地址</a>。</p>https://blog.treesir.pub/posts/quick-delete-rancher-failed-pod/Thu, 27 May 2021 08:59:56 +0800yangzun@treesir.pub (Zayn)https://blog.treesir.pub/posts/quick-delete-rancher-failed-pod/<h2 class="relative group">问题描述 <div id="问题描述" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e9%97%ae%e9%a2%98%e6%8f%8f%e8%bf%b0" aria-label="锚点">#</a> </span> </h2> <p>在 Rancher 管理的 Kubernetes 集群中，有时会出现副本集中的 Pod 部署失败的情况。如下图所示，失败的 Pod 数量可能达到上千个，手动逐一删除非常耗时。</p> <p> <figure> <img class="my-0 rounded-md" loading="lazy" alt="image-20210527085545254" src="https://cdn.treesir.pub/img/image-20210527085545254.png"> </figure> </p> <h2 class="relative group">解决方案 <div id="解决方案" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88" aria-label="锚点">#</a> </span> </h2> <h2 class="relative group">批量删除失败的 Pod <div id="批量删除失败的-pod" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e6%89%b9%e9%87%8f%e5%88%a0%e9%99%a4%e5%a4%b1%e8%b4%a5%e7%9a%84-pod" aria-label="锚点">#</a> </span> </h2> <p>使用 kubectl 命令批量删除状态为 <code>MatchNodeSelector</code> 的失败 Pod：</p>https://blog.treesir.pub/posts/rancher-monitor-config-third/Wed, 19 May 2021 08:41:26 +0800yangzun@treesir.pub (Zayn)https://blog.treesir.pub/posts/rancher-monitor-config-third/<h2 class="relative group">环境说明 <div id="环境说明" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e7%8e%af%e5%a2%83%e8%af%b4%e6%98%8e" aria-label="锚点">#</a> </span> </h2> <blockquote> <p>此文档为 rancher <code>monitor</code> 使用系列的 <code>第三篇</code> ，主要介绍与 <code>dingtalk</code> 关联配置告警通知、prometheus 告警阈值的配置使用</p></blockquote> <h2 class="relative group">配置安装 dingtalk webhook <div id="配置安装-dingtalk-webhook" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e9%85%8d%e7%bd%ae%e5%ae%89%e8%a3%85-dingtalk-webhook" aria-label="锚点">#</a> </span> </h2> <blockquote> <p><a href="https://github.com/timonwong/prometheus-webhook-dingtalk" target="_blank" >webhook github 地址</a></p>https://blog.treesir.pub/posts/rancher-monitor-config-first/Mon, 17 May 2021 10:41:26 +0800yangzun@treesir.pub (Zayn)https://blog.treesir.pub/posts/rancher-monitor-config-first/<h2 class="relative group">环境说明 <div id="环境说明" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e7%8e%af%e5%a2%83%e8%af%b4%e6%98%8e" aria-label="锚点">#</a> </span> </h2> <ul> <li>kubernetes version: <code>v1.17.9</code></li> <li>rancher dashboard: <code>v2.3.5</code></li> <li>操作系统: <code>centos 7.8.2003 </code></li> </ul> <h2 class="relative group">基础环境配置 <div id="基础环境配置" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e5%9f%ba%e7%a1%80%e7%8e%af%e5%a2%83%e9%85%8d%e7%bd%ae" aria-label="锚点">#</a> </span> </h2> <h2 class="relative group">使用 kubekey 部署 kubernetes 集群 <div id="使用-kubekey-部署-kubernetes-集群" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e4%bd%bf%e7%94%a8-kubekey-%e9%83%a8%e7%bd%b2-kubernetes-%e9%9b%86%e7%be%a4" aria-label="锚点">#</a> </span> </h2> <blockquote> <p>由于篇幅原因，此处省略部署说明，请参考较早期的 <a href="http://hugo.blog:1313/post/kubekey-install-k8s/" target="_blank" >文档说明</a></p>https://blog.treesir.pub/posts/rancher-monitor-config-second/Mon, 17 May 2021 10:41:26 +0800yangzun@treesir.pub (Zayn)https://blog.treesir.pub/posts/rancher-monitor-config-second/<h2 class="relative group">环境说明 <div id="环境说明" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e7%8e%af%e5%a2%83%e8%af%b4%e6%98%8e" aria-label="锚点">#</a> </span> </h2> <blockquote> <p><a href="https://www.treesir.pub/post/rancher-monitor-config-first/" target="_blank" ><code>上期</code></a> 介绍了 <code>rancher prometheus operator</code> 的安装和基础 targets 的修复工作。有的时候我们抓取的 exporter metrics 并不在同集群且与集群没有任何关联时，应该怎么和 rancher <code>monitor</code> 进行关联配置呢？下面文档将配置展示部署外部 <code>exporter </code>, 的安装说明、指标抓取、 和监控系统的关联。</p>