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class="menu__link" href="/glossary">Glossary</a></li></ul></nav></div></div></aside><main class="docMainContainer_gTbr"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><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">Troubleshooting</span><meta itemprop="position" content="1"></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Other Troubleshooting Tips</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">Logging</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>Logging</h1></header><h2 class="anchor anchorWithStickyNavbar_LWe7" id="log-levels">Log Levels<a href="#log-levels" class="hash-link" aria-label="Direct link to Log Levels" title="Direct link to Log Levels"></a></h2><p>The following log levels are used in Rancher:</p><table><thead><tr><th>Name</th><th>Description</th></tr></thead><tbody><tr><td><code>info</code></td><td>Logs informational messages. This is the default log level.</td></tr><tr><td><code>debug</code></td><td>Logs more detailed messages that can be used to debug.</td></tr><tr><td><code>trace</code></td><td>Logs very detailed messages on internal functions. This is very verbose and can contain sensitive information.</td></tr></tbody></table><h3 class="anchor anchorWithStickyNavbar_LWe7" id="how-to-configure-a-log-level">How to Configure a Log Level<a href="#how-to-configure-a-log-level" class="hash-link" aria-label="Direct link to How to Configure a Log Level" title="Direct link to How to Configure a Log Level"></a></h3><h4 class="anchor anchorWithStickyNavbar_LWe7" id="kubernetes-install">Kubernetes Install<a href="#kubernetes-install" class="hash-link" aria-label="Direct link to Kubernetes Install" title="Direct link to Kubernetes Install"></a></h4><ul><li>Configure debug log level</li></ul><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ KUBECONFIG=./kube_config_cluster.yml</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ kubectl -n cattle-system get pods -l app=rancher --no-headers -o custom-columns=name:.metadata.name | while read rancherpod; do kubectl -n cattle-system exec $rancherpod -c rancher -- loglevel --set debug; done</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">OK</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">OK</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">OK</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ kubectl -n cattle-system logs -l app=rancher -c rancher</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><ul><li>Configure info log level</li></ul><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ KUBECONFIG=./kube_config_cluster.yml</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ kubectl -n cattle-system get pods -l app=rancher --no-headers -o custom-columns=name:.metadata.name | while read rancherpod; do kubectl -n cattle-system exec $rancherpod -c rancher -- loglevel --set info; done</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">OK</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">OK</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">OK</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h4 class="anchor anchorWithStickyNavbar_LWe7" id="docker-install">Docker Install<a href="#docker-install" class="hash-link" aria-label="Direct link to Docker Install" title="Direct link to Docker Install"></a></h4><ul><li>Configure debug log level</li></ul><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ docker exec -ti <container_id> loglevel --set debug</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">OK</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ docker logs -f <container_id></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><ul><li>Configure info log level</li></ul><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ docker exec -ti <container_id> loglevel --set info</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">OK</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="rancher-machine-debug-logs">Rancher Machine Debug Logs<a href="#rancher-machine-debug-logs" class="hash-link" aria-label="Direct link to Rancher Machine Debug Logs" title="Direct link to Rancher Machine Debug Logs"></a></h2><p>If you need to troubleshoot the creation of objects in your infrastructure provider of choice, <code>rancher-machine</code>
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debug logs might be helpful to you.</p><p>It's possible to enable debug logs for <code>rancher-machine</code> by setting environment variables when launching Rancher.</p><p>The <code>CATTLE_WHITELIST_ENVVARS</code> environment variable allows users to whitelist specific environment variables to be
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passed down to <code>rancher-machine</code> during provisioning.</p><p>The <code>MACHINE_DEBUG</code> variable enables debug logs in <code>rancher-machine</code>.</p><p>Thus, by setting <code>MACHINE_DEBUG=true</code> and adding <code>MACHINE_DEBUG</code> to the default list of variables in
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<code>CATTLE_WHITELIST_ENVVARS</code> (e.g. <code>CATTLE_WHITELIST_ENVVARS=HTTP_PROXY,HTTPS_PROXY,NO_PROXY,MACHINE_DEBUG</code>) it is
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possible to enable debug logs in <code>rancher-machine</code> when provisioning RKE1, RKE2 and k3s clusters.</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>Just like the <code>trace</code> log level above, <code>rancher-machine</code> debug logs can contain sensitive information.</p></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="cattle-cluster-agent-debug-logs">Cattle-cluster-agent Debug Logs<a href="#cattle-cluster-agent-debug-logs" class="hash-link" aria-label="Direct link to Cattle-cluster-agent Debug Logs" title="Direct link to Cattle-cluster-agent Debug Logs"></a></h2><p>The <code>cattle-cluster-agent</code> log levels can be set when you initialize downstream clusters.</p><p>When you create a cluster under <strong>Cluster Configuration > Agent Environment Vars</strong> you can set variables to define the log level.</p><ul><li><p>Trace-level logging: Set <code>CATTLE_TRACE</code> or <code>RANCHER_TRACE</code> to <code>true</code></p></li><li><p>Debug-level logging: Set <code>CATTLE_DEBUG</code> or <code>RANCHER_DEBUG</code> to <code>true</code></p></li></ul><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>The <code>cattle-cluster-agent</code> debug logs may contain sensitive information.</p></div></div></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/rancher-docs/edit/main/docs/troubleshooting/other-troubleshooting-tips/logging.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="2023-09-29T15:12:11.000Z">Sep 29, 2023</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="/troubleshooting/other-troubleshooting-tips/registered-clusters"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Registered Clusters</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/troubleshooting/other-troubleshooting-tips/user-id-tracking-in-audit-logs"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">User ID Tracking in Audit Logs</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="#log-levels" class="table-of-contents__link toc-highlight">Log Levels</a><ul><li><a href="#how-to-configure-a-log-level" class="table-of-contents__link toc-highlight">How to Configure a Log Level</a></li></ul></li><li><a href="#rancher-machine-debug-logs" class="table-of-contents__link toc-highlight">Rancher Machine Debug Logs</a></li><li><a href="#cattle-cluster-agent-debug-logs" class="table-of-contents__link toc-highlight">Cattle-cluster-agent Debug Logs</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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