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1-.45 1-1z" fill="currentColor"></path></svg></a></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item"><a class="breadcrumbs__link" itemprop="item" href="/integrations-in-rancher"><span itemprop="name">Integrations in Rancher</span></a><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="/integrations-in-rancher/cluster-api"><span itemprop="name">Cluster API (CAPI) with Rancher Turtles</span></a><meta itemprop="position" content="2"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Overview</span><meta itemprop="position" content="3"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: Latest</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Overview</h1></header><h2 class="anchor anchorWithStickyNavbar_LWe7" id="architecture-diagram">Architecture Diagram<a href="#architecture-diagram" class="hash-link" aria-label="Direct link to Architecture Diagram" title="Direct link to Architecture Diagram">​</a></h2><p>Below is a visual representation of the key components of Rancher Turtles and their relationship to Rancher and the Rancher Cluster Agent. Understanding these components is essential for gaining insights into how Rancher leverages the CAPI operator for cluster management.</p><p><img loading="lazy" alt="overview" src="/assets/images/30000ft_view-75594a3a3d81767f9fc9308b05ea8b1b.png" width="952" height="1204" class="img_ev3q"></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="security">Security<a href="#security" class="hash-link" aria-label="Direct link to Security" title="Direct link to Security">​</a></h2><p>As defined by <a href="https://slsa.dev/spec/v1.0/about" target="_blank" rel="noopener noreferrer">Supply-chain Levels for Software Artifacts (SLSA)</a>, SLSA is a set of incrementally adoptable guidelines for supply chain security, established by industry consensus. The specification set by SLSA is useful for both software producers and consumers: producers can follow SLSA’s guidelines to make their software supply chain more secure, and consumers can use SLSA to make decisions about whether to trust a software package.</p><p>Rancher Turtles meets <a href="https://slsa.dev/spec/v1.0/levels#build-l3" target="_blank" rel="noopener noreferrer">SLSA Level 3</a> requirements as an appropriate hardened build platform, with consistent build processes, and provenance distribution. For more information, visit the <a href="https://turtles.docs.rancher.com/security/slsa" target="_blank" rel="noopener noreferrer">Rancher Turtles Security</a> document.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="prerequisites">Prerequisites<a href="#prerequisites" class="hash-link" aria-label="Direct link to Prerequisites" title="Direct link to Prerequisites">​</a></h2><p>Before installing Rancher Turtles in your Rancher environment, you must disable Rancher&#x27;s <code>embedded-cluster-api</code> functionality. This also includes cleaning up Rancher-specific webhooks that otherwise would conflict with CAPI ones.</p><p>To simplify setting up Rancher for installing Rancher Turtles, the official Rancher Turtles Helm chart includes a <code>pre-install</code> hook that removes the following:</p><ul><li>Disables the <code>embedded-cluster-api</code> feature in Rancher.</li><li>Deletes the <code>mutating-webhook-configuration</code> and <code>validating-webhook-configuration</code> webhooks, as they are no longer needed.</li></ul><p>These webhooks can be removed through the Rancher UI as well:</p><ol><li>In the upper left corner, click <strong>☰</strong> &gt; <strong>Cluster Management</strong>.</li><li>Select your local cluster.</li><li>In the left-hand navigation menu, select <strong>More Resources</strong> &gt; <strong>Admission</strong>.</li><li>From the dropdown, select the Resource pages for <code>MutatingWebhookConfiguration</code> and <code>ValidatingWebhookConfiguration</code>.</li><li>On the respective Resource pages, click the <strong>⋮</strong> that are attached to the <code>mutating-webhook-configuration</code> and <code>validating-webhook-configuration</code> webhooks and select the <strong>Delete</strong> option.</li></ol><p>The webhooks can also be accessed by entering the names of the webhooks into the <strong>Resource Search</strong> field.</p><p>The following <code>kubectl</code> commands can manually remove the necessary webhooks:</p><div class="language-console codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-console codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">kubectl delete mutatingwebhookconfiguration.admissionregistration.k8s.io mutating-webhook-configuration</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><div class="language-console codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-console codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">kubectl delete validatingwebhookconfigurations.admissionregistration.k8s.io validating-webhook-configuration</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>Use the following example to disable the <code>embedded-cluster-api</code> feature from the console:</p><ol><li>Create a <code>feature.yaml</code> file, with <code>embedded-cluster-api</code> set to false:</li></ol><div class="language-yaml codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockTitle_Ktv7">feature.yaml</div><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-yaml codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token key atrule">apiVersion</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> management.cattle.io/v3</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">kind</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> Feature</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">metadata</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">name</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> embedded</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">cluster</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">api</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">spec</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">value</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token boolean important" style="color:rgb(255, 88, 116)">false</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><ol start="2"><li>Use <code>kubectl</code> to apply the <code>feature.yaml</code> file to the cluster:</li></ol><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">kubectl apply -f feature.yaml</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="installing-the-rancher-turtles-operator">Installing the Rancher Turtles Operator<a href="#installing-the-rancher-turtles-operator" class="hash-link" aria-label="Direct link to Installing the Rancher Turtles Operator" title="Direct link to Installing the Rancher Turtles Operator">​</a></h2><p>You can install the Rancher Turtles operator via the Rancher UI, or with Helm. The first method is recommended for most environments.</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>caution</div><div class="admonitionContent_S0QG"><p>If you already have the Cluster API (CAPI) Operator installed in your cluster, you must use the <a href="#installing-via-helm">manual Helm installation method</a>.</p></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="installing-via-the-rancher-ui">Installing via the Rancher UI<a href="#installing-via-the-rancher-ui" class="hash-link" aria-label="Direct link to Installing via the Rancher UI" title="Direct link to Installing via the Rancher UI">​</a></h3><p>By adding the Turtles repository via the Rancher UI, Rancher can process the installation and configuration of the CAPI Extension.</p><ol><li>Click <strong>☰</strong>. Under <strong>Explore Cluster</strong> in the left navigation menu, select <strong>local</strong>.</li><li>In the left navigation menu of the <strong>Cluster Dashboard</strong>, select <strong>Apps &gt; Repositories</strong>.</li><li>Click <strong>Create</strong> to add a new repository.</li><li>Enter the following:<ul><li><strong>Name</strong>: turtles</li><li><strong>Index URL</strong>: <a href="https://rancher.github.io/turtles" target="_blank" rel="noopener noreferrer">https://rancher.github.io/turtles</a></li></ul></li><li>Wait until the new repository has a status of <code>Active</code>.</li><li>In the left navigation menu, select <strong>Apps &gt; Charts</strong>.</li><li>Enter &quot;turtles&quot; into the search filter to find the Turtles chart.</li><li>Click <strong>Rancher Turtles - the Cluster API Extension</strong>.</li><li>Click <strong>Install &gt; Next &gt; Install</strong>.</li></ol><p>This process uses the default values for the Helm chart, which are good for most installations. If your configuration requires overriding some of these defaults, you can either specify the values during installation from the Rancher UI or you can <a href="#installing-via-helm">manually install the chart via Helm</a>. For details about available values, see the Rancher Turtles <a href="https://turtles.docs.rancher.com/reference-guides/rancher-turtles-chart/values" target="_blank" rel="noopener noreferrer">Helm chart reference guide</a>.</p><p>The installation may take a few minutes and after completing you can see the following new deployments in the cluster:</p><ul><li><code>rancher-turtles-system/rancher-turtles-controller-manager</code></li><li><code>rancher-turtles-system/rancher-turtles-cluster-api-operator</code></li><li><code>capi-system/capi-controller-manager</code></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="demo">Demo<a href="#demo" class="hash-link" aria-label="Direct link to Demo" title="Direct link to Demo">​</a></h4><p>This demo illustrates how to use the Rancher UI to install Rancher Turtles, create/import a CAPI cluster, and install monitoring on the cluster:</p><iframe width="560" height="315" src="https://www.youtube.com/embed/lGsr7KfBjgU?si=ORkzuAJjcdXUXMxh" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"></iframe><h3 class="anchor anchorWithStickyNavbar_LWe7" id="installing-via-helm">Installing via Helm<a href="#installing-via-helm" class="hash-link" aria-label="Direct link to Installing via Helm" title="Direct link to Installing via Helm">​</a></h3><p>There are two ways to install Rancher Turtles with Helm, depending on whether you include the <a href="https://github.com/kubernetes-sigs/cluster-api-operator" target="_blank" rel="noopener noreferrer">CAPI Operator</a> as a dependency:</p><ul><li><a href="#installing-rancher-turtles-with-cluster-api-capi-operator-as-a-helm-dependency">Install Rancher Turtles with CAPI Operator as a dependency</a>.</li><li><a href="#installing-rancher-turtles-without-cluster-api-capi-operator-as-a-helm-dependency">Install Rancher Turtles without CAPI Operator</a>.</li></ul><p>The CAPI Operator is required for installing Rancher Turtles. You can choose whether you want to take care of this dependency yourself or let the Rancher Turtles Helm chart manage it for you. <a href="#installing-rancher-turtles-with-cluster-api-capi-operator-as-a-helm-dependency">Installing Turtles as a dependency</a> is simpler, but your best option depends on your specific configuration.</p><p>The CAPI Operator allows for handling the lifecycle of <a href="https://turtles.docs.rancher.com/tasks/capi-operator/installing_core_provider" target="_blank" rel="noopener noreferrer">CAPI providers</a> using a declarative approach, extending the capabilities of <code>clusterctl</code>. If you want to learn more about it, you can refer to <a href="https://cluster-api-operator.sigs.k8s.io/" target="_blank" rel="noopener noreferrer">Cluster API Operator book</a>.</p><h4 class="anchor anchorWithStickyNavbar_LWe7" id="installing-rancher-turtles-with-cluster-api-capi-operator-as-a-helm-dependency">Installing Rancher Turtles with <code>Cluster API (CAPI) Operator</code> as a Helm dependency<a href="#installing-rancher-turtles-with-cluster-api-capi-operator-as-a-helm-dependency" class="hash-link" aria-label="Direct link to installing-rancher-turtles-with-cluster-api-capi-operator-as-a-helm-dependency" title="Direct link to installing-rancher-turtles-with-cluster-api-capi-operator-as-a-helm-dependency">​</a></h4><ol><li>Add the Helm repository containing the <code>rancher-turtles</code> chart as the first step in installation:</li></ol><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">helm repo </span><span class="token function" style="color:rgb(130, 170, 255)">add</span><span class="token plain"> turtles https://rancher.github.io/turtles</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">helm repo update</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><ol start="2"><li>As mentioned before, installing Rancher Turtles requires the <a href="https://github.com/kubernetes-sigs/cluster-api-operator" target="_blank" rel="noopener noreferrer">CAPI Operator</a>. The Helm chart can automatically install it with a minimal set of flags:</li></ol><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">helm </span><span class="token function" style="color:rgb(130, 170, 255)">install</span><span class="token plain"> rancher-turtles turtles/rancher-turtles --version </span><span class="token operator" style="color:rgb(137, 221, 255)">&lt;</span><span class="token plain">version</span><span class="token operator" style="color:rgb(137, 221, 255)">&gt;</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">\</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> -n rancher-turtles-system </span><span class="token punctuation" style="color:rgb(199, 146, 234)">\</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> --dependency-update </span><span class="token punctuation" style="color:rgb(199, 146, 234)">\</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> --create-namespace --wait </span><span class="token punctuation" style="color:rgb(199, 146, 234)">\</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> --timeout 180s</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><ol start="3"><li>This operation could take a few minutes and after completing you can review the installed controllers listed below:</li></ol><ul><li><code>rancher-turtles-controller</code></li><li><code>capi-operator</code></li></ul><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>note</div><div class="admonitionContent_S0QG"><ul><li>If <code>cert-manager</code> is already available in the cluster, disable its installation as a Rancher Turtles dependency. This prevents dependency conflicts:
<code>--set cluster-api-operator.cert-manager.enabled=false</code></li><li>For a list of Rancher Turtles versions, refer to the <a href="https://github.com/rancher/turtles/releases" target="_blank" rel="noopener noreferrer">Turtles release page</a>.</li></ul></div></div><p>This is the basic, recommended configuration, which manages the creation of a secret containing the required CAPI feature flags (<code>CLUSTER_TOPOLOGY</code>, <code>EXP_CLUSTER_RESOURCE_SET</code> and <code>EXP_MACHINE_POOL</code> enabled) in the core provider namespace. These feature flags are required to enable additional CAPI functionality.</p><p>If you need to override the default behavior and use an existing secret (or add custom environment variables), you can pass the secret name Helm flag. In this case, as a user, you are in charge of managing the secret creation and its content, including enabling the minimum required features: <code>CLUSTER_TOPOLOGY</code>, <code>EXP_CLUSTER_RESOURCE_SET</code> and <code>EXP_MACHINE_POOL</code>.</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">helm </span><span class="token function" style="color:rgb(130, 170, 255)">install</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">..</span><span class="token plain">.</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic"># Passing secret name and namespace for additional environment variables</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> --set cluster-api-operator.cluster-api.configSecret.name</span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token operator" style="color:rgb(137, 221, 255)">&lt;</span><span class="token plain">secret-name</span><span class="token operator" style="color:rgb(137, 221, 255)">&gt;</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>The following is an example of a user-managed secret <code>cluster-api-operator.cluster-api.configSecret.name=variables</code> with <code>CLUSTER_TOPOLOGY</code>, <code>EXP_CLUSTER_RESOURCE_SET</code> and <code>EXP_MACHINE_POOL</code> feature flags set and an extra custom variable:</p><div class="language-yaml codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockTitle_Ktv7">secret.yaml</div><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-yaml codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token key atrule">apiVersion</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> v1</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">kind</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> Secret</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">metadata</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">name</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> variables</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">namespace</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> rancher</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">turtles</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">system</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">type</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> Opaque</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">stringData</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">CLUSTER_TOPOLOGY</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">&quot;true&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">EXP_CLUSTER_RESOURCE_SET</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">&quot;true&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">EXP_MACHINE_POOL</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">&quot;true&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">CUSTOM_ENV_VAR</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">&quot;false&quot;</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><div class="theme-admonition theme-admonition-info alert alert--info admonition_LlT9"><div class="admonitionHeading_tbUL"><span class="admonitionIcon_kALy"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>info</div><div class="admonitionContent_S0QG"><p>For detailed information on the values supported by the chart and their usage, refer to <a href="https://turtles.docs.rancher.com/reference-guides/rancher-turtles-chart/values" target="_blank" rel="noopener noreferrer">Helm chart options</a></p></div></div><h4 class="anchor anchorWithStickyNavbar_LWe7" id="installing-rancher-turtles-without-cluster-api-capi-operator-as-a-helm-dependency">Installing Rancher Turtles without <code>Cluster API (CAPI) Operator</code> as a Helm dependency<a href="#installing-rancher-turtles-without-cluster-api-capi-operator-as-a-helm-dependency" class="hash-link" aria-label="Direct link to installing-rancher-turtles-without-cluster-api-capi-operator-as-a-helm-dependency" title="Direct link to installing-rancher-turtles-without-cluster-api-capi-operator-as-a-helm-dependency">​</a></h4><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>note</div><div class="admonitionContent_S0QG"><p>Remember that if you opt for this installation option, you must manage the CAPI Operator installation yourself. You can follow the <a href="https://turtles.docs.rancher.com/tasks/capi-operator/intro" target="_blank" rel="noopener noreferrer">CAPI Operator guide</a> in the Rancher Turtles documentation for assistance.</p></div></div><ol><li>Add the Helm repository containing the <code>rancher-turtles</code> chart as the first step in installation:</li></ol><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">helm repo </span><span class="token function" style="color:rgb(130, 170, 255)">add</span><span class="token plain"> turtles https://rancher.github.io/turtles</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">helm repo update</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><ol start="2"><li>Install the chart into the <code>rancher-turtles-system</code> namespace:</li></ol><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">helm </span><span class="token function" style="color:rgb(130, 170, 255)">install</span><span class="token plain"> rancher-turtles turtles/rancher-turtles --version </span><span class="token operator" style="color:rgb(137, 221, 255)">&lt;</span><span class="token plain">version</span><span class="token operator" style="color:rgb(137, 221, 255)">&gt;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> -n rancher-turtles-system</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> --set cluster-api-operator.enabled</span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain">false</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> --set cluster-api-operator.cluster-api.enabled</span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain">false</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> --create-namespace --wait</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> --dependency-update</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>The previous commands tell Helm to ignore installing <code>cluster-api-operator</code> as a dependency.</p><ol start="3"><li>This operation could take a few minutes and after completing you can review the installed controller listed below:</li></ol><ul><li><code>rancher-turtles-controller</code></li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="uninstalling-rancher-turtles">Uninstalling Rancher Turtles<a href="#uninstalling-rancher-turtles" class="hash-link" aria-label="Direct link to Uninstalling Rancher Turtles" title="Direct link to Uninstalling Rancher Turtles">​</a></h2><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>caution</div><div class="admonitionContent_S0QG"><p>When installing Rancher Turtles in your Rancher environment, by default, Rancher Turtles enables the CAPI Operator cleanup. This includes cleaning up CAPI Operator specific webhooks and deployments that otherwise cause issues with Rancher provisioning.</p><p>To simplify uninstalling Rancher Turtles (via Rancher or Helm command), the official Rancher Turtles Helm chart includes a <code>post-delete</code> hook that that removes the following:</p><ul><li>Deletes the <code>mutating-webhook-configuration</code> and <code>validating-webhook-configuration</code> webhooks that are no longer needed.</li><li>Deletes the CAPI <code>deployments</code> that are no longer needed.</li></ul></div></div><p>To uninstall Rancher Turtles:</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">helm uninstall -n rancher-turtles-system rancher-turtles --cascade foreground --wait</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>This may take a few minutes to complete.</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>note</div><div class="admonitionContent_S0QG"><p>Remember that, if you use a different name for the installation or a different namespace, you may need to customize the command for your specific configuration.</p></div></div><p>After Rancher Turtles is uninstalled, Rancher&#x27;s <code>embedded-cluster-api</code> feature must be re-enabled:</p><ol><li>Create a <code>feature.yaml</code> file, with <code>embedded-cluster-api</code> set to true:</li></ol><div class="language-yaml codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockTitle_Ktv7">feature.yaml</div><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-yaml codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token key atrule">apiVersion</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> management.cattle.io/v3</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">kind</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> Feature</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">metadata</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">name</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> embedded</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">cluster</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">api</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">spec</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">value</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token boolean important" style="color:rgb(255, 88, 116)">true</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><ol start="2"><li>Use <code>kubectl</code> to apply the <code>feature.yaml</code> file to the cluster:</li></ol><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">kubectl apply -f feature.yaml</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a 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