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itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Cluster Tools for Logging, Monitoring, and Visibility</span><meta itemprop="position" content="2"></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>Cluster Tools for Logging, Monitoring, and Visibility</h1></header><p>Rancher contains a variety of tools that aren't included in Kubernetes to assist in your DevOps operations. Rancher can integrate with external services to help your clusters run more efficiently. Tools are divided into following categories:</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="logging">Logging<a href="#logging" class="hash-link" aria-label="Direct link to Logging" title="Direct link to Logging"></a></h2><p>Logging is helpful because it allows you to:</p><ul><li>Capture and analyze the state of your cluster</li><li>Look for trends in your environment</li><li>Save your logs to a safe location outside of your cluster</li><li>Stay informed of events like a container crashing, a pod eviction, or a node dying</li><li>More easily debug and troubleshoot problems</li></ul><p>Rancher can integrate with Elasticsearch, splunk, kafka, syslog, and fluentd.</p><p>For more information, refer to the logging documentation <a href="/integrations-in-rancher/logging">here.</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="monitoring-and-alerts">Monitoring and Alerts<a href="#monitoring-and-alerts" class="hash-link" aria-label="Direct link to Monitoring and Alerts" title="Direct link to Monitoring and Alerts"></a></h2><p>Using Rancher, you can monitor the state and processes of your cluster nodes, Kubernetes components, and software deployments through integration with <a href="https://prometheus.io/" target="_blank" rel="noopener noreferrer">Prometheus</a>, a leading open-source monitoring solution.</p><p>After monitoring is enabled, you can set up alerts and notifiers that provide the mechanism to receive them.</p><p>Notifiers are services that inform you of alert events. You can configure notifiers to send alert notifications to staff best suited to take corrective action. Notifications can be sent with Slack, email, PagerDuty, WeChat, and webhooks.</p><p>Alerts are rules that trigger those notifications. Before you can receive alerts, you must configure one or more notifier in Rancher. The scope for alerts can be set at either the cluster or project level.</p><p>For more information, refer to the monitoring documentation <a href="/integrations-in-rancher/monitoring-and-alerting">here.</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="istio">Istio<a href="#istio" class="hash-link" aria-label="Direct link to Istio" title="Direct link to Istio"></a></h2><p><a href="https://istio.io/" target="_blank" rel="noopener noreferrer">Istio</a> is an open-source tool that makes it easier for DevOps teams to observe, control, troubleshoot, and secure the traffic within a complex network of microservices.</p><p>Rancher's integration with Istio was improved in Rancher v2.5.</p><p>For more information, refer to the Istio documentation <a href="/integrations-in-rancher/istio">here.</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="opa-gatekeeper">OPA Gatekeeper<a href="#opa-gatekeeper" class="hash-link" aria-label="Direct link to OPA Gatekeeper" title="Direct link to OPA Gatekeeper"></a></h2><div class="theme-admonition theme-admonition-warning alert alert--danger admonition_LlT9"><div class="admonitionHeading_tbUL"><span class="admonitionIcon_kALy"><svg viewBox="0 0 12 16"><path fill-rule="evenodd" d="M5.05.31c.81 2.17.41 3.38-.52 4.31C3.55 5.67 1.98 6.45.9 7.98c-1.45 2.05-1.7 6.53 3.53 7.7-2.2-1.16-2.67-4.52-.3-6.61-.61 2.03.53 3.33 1.94 2.86 1.39-.47 2.3.53 2.27 1.67-.02.78-.31 1.44-1.13 1.81 3.42-.59 4.78-3.42 4.78-5.56 0-2.84-2.53-3.22-1.25-5.61-1.52.13-2.03 1.13-1.89 2.75.09 1.08-1.02 1.8-1.86 1.33-.67-.41-.66-1.19-.06-1.78C8.18 5.31 8.68 2.45 5.05.32L5.03.3l.02.01z"></path></svg></span>danger</div><div class="admonitionContent_S0QG"><p>OPA Gatekeeper is deprecated and will be removed in a future release. As a replacement for OPA Gatekeeper, consider switching to <a href="/integrations-in-rancher/kubewarden">Kubewarden</a>.</p></div></div><p><a href="https://github.com/open-policy-agent/gatekeeper" target="_blank" rel="noopener noreferrer">OPA Gatekeeper</a> is an open-source project that provides integration between OPA and Kubernetes to provide policy control via admission controller webhooks. For details on how to enable Gatekeeper in Rancher, refer to the <a href="/integrations-in-rancher/opa-gatekeeper">OPA Gatekeeper section.</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="cis-scans">CIS Scans<a href="#cis-scans" class="hash-link" aria-label="Direct link to CIS Scans" title="Direct link to CIS Scans"></a></h2><p>Rancher can run a security scan to check whether Kubernetes is deployed according to security best practices as defined in the CIS Kubernetes Benchmark.</p><p>For more information, refer to the CIS scan documentation <a href="/how-to-guides/advanced-user-guides/cis-scan-guides">here.</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/rancher-docs/edit/main/docs/reference-guides/rancher-cluster-tools.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="2024-05-21T19:41:39.000Z">May 21, 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="/reference-guides/cli-with-rancher/kubectl-utility"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">kubectl Utility</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/reference-guides/rancher-project-tools"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Project Tools for Logging, Monitoring, and Visibility</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="#logging" class="table-of-contents__link toc-highlight">Logging</a></li><li><a href="#monitoring-and-alerts" class="table-of-contents__link toc-highlight">Monitoring and Alerts</a></li><li><a href="#istio" class="table-of-contents__link toc-highlight">Istio</a></li><li><a href="#opa-gatekeeper" class="table-of-contents__link toc-highlight">OPA Gatekeeper</a></li><li><a href="#cis-scans" class="table-of-contents__link toc-highlight">CIS Scans</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. 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