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<title data-rh="true">Overview | Fleet</title><meta data-rh="true" name="viewport" content="width=device-width,initial-scale=1"><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://fleet.rancher.io/0.4/cluster-overview"><meta data-rh="true" name="docusaurus_locale" content="en"><meta data-rh="true" name="docsearch:language" content="en"><meta data-rh="true" name="docusaurus_version" content="0.4"><meta data-rh="true" name="docusaurus_tag" content="docs-default-0.4"><meta data-rh="true" name="docsearch:version" content="0.4"><meta data-rh="true" name="docsearch:docusaurus_tag" content="docs-default-0.4"><meta data-rh="true" property="og:title" content="Overview | Fleet"><meta data-rh="true" name="description" content="There are two specific styles to registering clusters. These styles will be referred"><meta data-rh="true" property="og:description" content="There are two specific styles to registering clusters. These styles will be referred"><link data-rh="true" rel="icon" href="/img/favicon.ico"><link data-rh="true" rel="canonical" href="https://fleet.rancher.io/0.4/cluster-overview"><link data-rh="true" rel="alternate" href="https://fleet.rancher.io/0.4/cluster-overview" hreflang="en"><link data-rh="true" rel="alternate" href="https://fleet.rancher.io/0.4/cluster-overview" hreflang="x-default"><link data-rh="true" rel="preconnect" href="https://5YEVIM7OXD-dsn.algolia.net" crossorigin="anonymous"><link rel="search" type="application/opensearchdescription+xml" title="Fleet" href="/opensearch.xml"><link rel="stylesheet" href="/assets/css/styles.ff6ab72e.css">
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class="col docItemCol_VOVn"><div class="theme-doc-version-banner alert alert--warning margin-bottom--md" role="alert"><div>This is documentation for <!-- -->Fleet<!-- --> <b>0.4</b>, which is no longer actively maintained.</div><div class="margin-top--md">For up-to-date documentation, see the <b><a href="/">latest version</a></b> (<!-- -->Next 🚧<!-- -->).</div></div><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="Breadcrumbs"><ul class="breadcrumbs" itemscope="" itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><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">Operator Guide</span><meta itemprop="position" content="1"></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Registering Clusters</span><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: 0.4</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"><h1>Overview</h1><p>There are two specific styles to registering clusters. These styles will be referred
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to as <strong>agent initiated</strong> and <strong>manager initiated</strong> registration. Typically one would
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go with the agent initiated registration but there are specific use cases in which
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manager initiated is a better workflow.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="agent-initiated-registration">Agent Initiated Registration<a href="#agent-initiated-registration" class="hash-link" aria-label="Direct link to Agent Initiated Registration" title="Direct link to Agent Initiated Registration"></a></h2><p>Agent initiated refers to a pattern in which the downstream cluster installs an agent with a
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<a href="/0.4/cluster-tokens">cluster registration token</a> and optionally a client ID. The cluster
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agent will then make a API request to the Fleet manager and initiate the registration process. Using
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this process the Manager will never make an outbound API request to the downstream clusters and will thus
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never need to have direct network access. The downstream cluster only needs to make outbound HTTPS
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calls to the manager.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="manager-initiated-registration">Manager Initiated Registration<a href="#manager-initiated-registration" class="hash-link" aria-label="Direct link to Manager Initiated Registration" title="Direct link to Manager Initiated Registration"></a></h2><p>Manager initiated registration is a process in which you register an existing Kubernetes cluster
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with the Fleet manager and the Fleet manager will make an API call to the downstream cluster to
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deploy the agent. This style can place additional network access requirements because the Fleet
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manager must be able to communicate with the downstream cluster API server for the registration process.
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After the cluster is registered there is no further need for the manager to contact the downstream
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cluster API. This style is more compatible if you wish to manage the creation of all your Kubernetes
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clusters through GitOps using something like <a href="https://github.com/kubernetes-sigs/cluster-api" target="_blank" rel="noopener noreferrer">cluster-api</a>
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or <a href="https://github.com/rancher/rancher" target="_blank" rel="noopener noreferrer">Rancher</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/fleet-docs/edit/main/versioned_docs/version-0.4/cluster-overview.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>Edit this page</a></div><div class="col lastUpdated_vwxv"><span class="theme-last-updated">Last updated<!-- --> on <b><time datetime="2024-10-18T11:42:02.000Z">Oct 18, 2024</time></b></span></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/0.4/examples"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Examples</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/0.4/cluster-tokens"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Cluster Registration Tokens</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="#agent-initiated-registration" class="table-of-contents__link toc-highlight">Agent Initiated Registration</a></li><li><a href="#manager-initiated-registration" class="table-of-contents__link toc-highlight">Manager Initiated Registration</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 © 2024 SUSE Rancher. All Rights Reserved.</div></div></div></footer></div>
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