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<title data-rh="true">Install cert-manager | Constellation</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://docs.edgeless.systems/constellation/workflows/cert-manager"><meta data-rh="true" property="og:locale" content="en"><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="2.24"><meta data-rh="true" name="docusaurus_tag" content="docs-default-2.24"><meta data-rh="true" name="docsearch:version" content="2.24"><meta data-rh="true" name="docsearch:docusaurus_tag" content="docs-default-2.24"><meta data-rh="true" property="og:title" content="Install cert-manager | Constellation"><meta data-rh="true" name="description" content="If you want to use cert-manager with Constellation, pay attention to the following to avoid potential pitfalls."><meta data-rh="true" property="og:description" content="If you want to use cert-manager with Constellation, pay attention to the following to avoid potential pitfalls."><link data-rh="true" rel="icon" href="/constellation/img/favicon.ico"><link data-rh="true" rel="canonical" href="https://docs.edgeless.systems/constellation/workflows/cert-manager"><link data-rh="true" rel="alternate" href="https://docs.edgeless.systems/constellation/workflows/cert-manager" hreflang="en"><link data-rh="true" rel="alternate" href="https://docs.edgeless.systems/constellation/workflows/cert-manager" hreflang="x-default"><script data-rh="true" type="application/ld+json">{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Workflows","item":"https://docs.edgeless.systems/constellation/category/workflows"},{"@type":"ListItem","position":2,"name":"Install cert-manager","item":"https://docs.edgeless.systems/constellation/workflows/cert-manager"}]}</script><script src="/constellation/gtagman.js" async data-cookieconsent="ignore"></script><link rel="stylesheet" href="/constellation/assets/css/styles.9ca3c5b3.css">
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class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link">Install cert-manager</span></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: 2.24</span><div class="theme-doc-markdown markdown"><header><h1>Install cert-manager</h1></header>
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<div class="theme-admonition theme-admonition-caution admonition_xJq3 alert alert--warning"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><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_BuS1"><p>If you want to use cert-manager with Constellation, pay attention to the following to avoid potential pitfalls.</p></div></div>
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<p>Constellation ships with cert-manager preinstalled.
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The default installation is part of the <code>kube-system</code> namespace, as all other Constellation-managed microservices.
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You are free to install more instances of cert-manager into other namespaces.
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However, be aware that any new installation needs to use the same version as the one installed with Constellation or rely on the same CRD versions.
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Also remember to set the <code>installCRDs</code> value to <code>false</code> when installing new cert-manager instances.
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It will create problems if you have two installations of cert-manager depending on different versions of the installed CRDs.
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CRDs are cluster-wide resources and cert-manager depends on specific versions of those CRDs for each release.</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="row margin-top--sm theme-doc-footer-edit-meta-row"><div class="col noPrint_WFHX"><a href="https://github.com/edgelesssys/constellation/edit/main/docs/versioned_docs/version-2.24/workflows/cert-manager.md" target="_blank" rel="noopener noreferrer" 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_JAkA"></div></div></footer></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/constellation/workflows/lb"><div 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