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itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Monitoring and Alerting</span><meta itemprop="position" content="2"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: v2.7</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>Monitoring and Alerting</h1></header><p>Using the <code>rancher-monitoring</code> application, you can quickly deploy leading open-source monitoring and alerting solutions onto your cluster.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="features">Features<a class="hash-link" href="#features" title="Direct link to heading"></a></h3><p>Prometheus lets you view metrics from your Rancher and Kubernetes objects. Using timestamps, Prometheus lets you query and view these metrics in easy-to-read graphs and visuals, either through the Rancher UI or Grafana, which is an analytics viewing platform deployed along with Prometheus.</p><p>By viewing data that Prometheus scrapes from your cluster control plane, nodes, and deployments, you can stay on top of everything happening in your cluster. You can then use these analytics to better run your organization: stop system emergencies before they start, develop maintenance strategies, or restore crashed servers.</p><p>The <code>rancher-monitoring</code> operator, introduced in Rancher v2.5, is powered by <a href="https://prometheus.io/" target="_blank" rel="noopener noreferrer">Prometheus</a>, <a href="https://grafana.com/grafana/" target="_blank" rel="noopener noreferrer">Grafana</a>, <a href="https://prometheus.io/docs/alerting/latest/alertmanager/" target="_blank" rel="noopener noreferrer">Alertmanager</a>, the <a href="https://github.com/prometheus-operator/prometheus-operator" target="_blank" rel="noopener noreferrer">Prometheus Operator</a>, and the <a href="https://github.com/DirectXMan12/k8s-prometheus-adapter" target="_blank" rel="noopener noreferrer">Prometheus adapter.</a></p><p>The monitoring application allows you to:</p><ul><li>Monitor the state and processes of your cluster nodes, Kubernetes components, and software deployments</li><li>Define alerts based on metrics collected via Prometheus</li><li>Create custom Grafana dashboards</li><li>Configure alert-based notifications via Email, Slack, PagerDuty, etc. using Prometheus Alertmanager</li><li>Defines precomputed, frequently needed or computationally expensive expressions as new time series based on metrics collected via Prometheus</li><li>Expose collected metrics from Prometheus to the Kubernetes Custom Metrics API via Prometheus Adapter for use in HPA</li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="how-monitoring-works">How Monitoring Works<a class="hash-link" href="#how-monitoring-works" title="Direct link to heading"></a></h2><p>For an explanation of how the monitoring components work together, see <a href="/integrations-in-rancher/monitoring-and-alerting/how-monitoring-works">this page.</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="default-components-and-deployments">Default Components and Deployments<a class="hash-link" href="#default-components-and-deployments" title="Direct link to heading"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="built-in-dashboards">Built-in Dashboards<a class="hash-link" href="#built-in-dashboards" title="Direct link to heading"></a></h3><p>By default, the monitoring application deploys Grafana dashboards (curated by the <a href="https://github.com/prometheus-operator/kube-prometheus" target="_blank" rel="noopener noreferrer">kube-prometheus</a> project) onto a cluster.</p><p>It also deploys an Alertmanager UI and a Prometheus UI. For more information about these tools, see <a href="/integrations-in-rancher/monitoring-and-alerting/built-in-dashboards">Built-in Dashboards.</a></p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="default-metrics-exporters">Default Metrics Exporters<a class="hash-link" href="#default-metrics-exporters" title="Direct link to heading"></a></h3><p>By default, Rancher Monitoring deploys exporters (such as <a href="https://github.com/prometheus/node_exporter" target="_blank" rel="noopener noreferrer">node-exporter</a> and <a href="https://github.com/kubernetes/kube-state-metrics" target="_blank" rel="noopener noreferrer">kube-state-metrics</a>).</p><p>These default exporters automatically scrape metrics for CPU and memory from all components of your Kubernetes cluster, including your workloads.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="default-alerts">Default Alerts<a class="hash-link" href="#default-alerts" title="Direct link to heading"></a></h3><p>The monitoring application deploys some alerts by default. To see the default alerts, go to the <a href="/integrations-in-rancher/monitoring-and-alerting/built-in-dashboards#alertmanager-ui">Alertmanager UI</a> and click <strong>Expand all groups.</strong></p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="components-exposed-in-the-rancher-ui">Components Exposed in the Rancher UI<a class="hash-link" href="#components-exposed-in-the-rancher-ui" title="Direct link to heading"></a></h3><p>For a list of monitoring components exposed in the Rancher UI, along with common use cases for editing them, see <a href="/integrations-in-rancher/monitoring-and-alerting/how-monitoring-works#components-exposed-in-the-rancher-ui">this section.</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="role-based-access-control">Role-based Access Control<a class="hash-link" href="#role-based-access-control" title="Direct link to heading"></a></h2><p>For information on configuring access to monitoring, see <a href="/integrations-in-rancher/monitoring-and-alerting/rbac-for-monitoring">this page.</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="guides">Guides<a class="hash-link" href="#guides" title="Direct link to heading"></a></h2><ul><li><a href="/how-to-guides/advanced-user-guides/monitoring-alerting-guides/enable-monitoring">Enable monitoring</a></li><li><a href="/how-to-guides/advanced-user-guides/monitoring-alerting-guides/uninstall-monitoring">Uninstall monitoring</a></li><li><a href="/how-to-guides/advanced-user-guides/monitoring-alerting-guides/set-up-monitoring-for-workloads">Monitoring workloads</a></li><li><a href="/how-to-guides/advanced-user-guides/monitoring-alerting-guides/customize-grafana-dashboard">Customizing Grafana dashboards</a></li><li><a href="/how-to-guides/advanced-user-guides/monitoring-alerting-guides/create-persistent-grafana-dashboard">Persistent Grafana dashboards</a></li><li><a href="/how-to-guides/advanced-user-guides/monitoring-alerting-guides/debug-high-memory-usage">Debugging high memory usage</a></li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="configuration">Configuration<a class="hash-link" href="#configuration" title="Direct link to heading"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="configuring-monitoring-resources-in-rancher">Configuring Monitoring Resources in Rancher<a class="hash-link" href="#configuring-monitoring-resources-in-rancher" title="Direct link to heading"></a></h3><blockquote><p>The configuration reference assumes familiarity with how monitoring components work together. For more information, see <a href="/integrations-in-rancher/monitoring-and-alerting/how-monitoring-works">How Monitoring Works.</a></p></blockquote><ul><li><a href="/reference-guides/monitoring-v2-configuration/servicemonitors-and-podmonitors">ServiceMonitor and PodMonitor</a></li><li><a href="/reference-guides/monitoring-v2-configuration/receivers">Receiver</a></li><li><a href="/reference-guides/monitoring-v2-configuration/routes">Route</a></li><li><a href="/how-to-guides/advanced-user-guides/monitoring-v2-configuration-guides/advanced-configuration/prometheusrules">PrometheusRule</a></li><li><a href="/how-to-guides/advanced-user-guides/monitoring-v2-configuration-guides/advanced-configuration/prometheus">Prometheus</a></li><li><a href="/how-to-guides/advanced-user-guides/monitoring-v2-configuration-guides/advanced-configuration/alertmanager">Alertmanager</a></li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="configuring-helm-chart-options">Configuring Helm Chart Options<a class="hash-link" href="#configuring-helm-chart-options" title="Direct link to heading"></a></h3><p>For more information on <code>rancher-monitoring</code> chart options, including options to set resource limits and requests, see <a href="/reference-guides/monitoring-v2-configuration/helm-chart-options">this page.</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="windows-cluster-support">Windows Cluster Support<a class="hash-link" href="#windows-cluster-support" title="Direct link to heading"></a></h2><p>When deployed onto an RKE1 Windows cluster, Monitoring V2 will now automatically deploy a <a href="https://github.com/prometheus-community/windows_exporter" target="_blank" rel="noopener noreferrer">windows-exporter</a> DaemonSet and set up a ServiceMonitor to collect metrics from each of the deployed Pods. This will populate Prometheus with <code>windows_</code> metrics that are akin to the <code>node_</code> metrics exported by <a href="https://github.com/prometheus/node_exporter" target="_blank" rel="noopener noreferrer">node_exporter</a> for Linux hosts.</p><p>To be able to fully deploy Monitoring V2 for Windows, all of your Windows hosts must have a minimum <a href="https://github.com/rancher/wins" target="_blank" rel="noopener noreferrer">wins</a> version of v0.1.0.</p><p>For more details on how to upgrade wins on existing Windows hosts, refer to the section on <a href="/integrations-in-rancher/monitoring-and-alerting/windows-support">Windows cluster support for Monitoring V2.</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="known-issues">Known Issues<a class="hash-link" href="#known-issues" title="Direct link to heading"></a></h2><p>There is a <a href="https://github.com/rancher/rancher/issues/28787#issuecomment-693611821" target="_blank" rel="noopener noreferrer">known issue</a> that K3s clusters require more default memory. If you are enabling monitoring on a K3s cluster, we recommend to setting <code>prometheus.prometheusSpec.resources.memory.limit</code> to 2500 Mi and <code>prometheus.prometheusSpec.resources.memory.request</code> to 1750 Mi.</p><p>For tips on debugging high memory usage, see <a href="/how-to-guides/advanced-user-guides/monitoring-alerting-guides/debug-high-memory-usage">this page.</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/pages-for-subheaders/monitoring-and-alerting.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="2022-11-16T18:29:26.000Z">Nov 16, 2022</time></b></span></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><a class="pagination-nav__link pagination-nav__link--prev" href="/integrations-in-rancher/logging/custom-resource-configuration/outputs-and-clusteroutputs"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Outputs and ClusterOutputs</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/integrations-in-rancher/monitoring-and-alerting/how-monitoring-works"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">How Monitoring Works</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="#features" class="table-of-contents__link toc-highlight">Features</a></li><li><a href="#how-monitoring-works" class="table-of-contents__link toc-highlight">How Monitoring Works</a></li><li><a href="#default-components-and-deployments" class="table-of-contents__link toc-highlight">Default Components and Deployments</a><ul><li><a href="#built-in-dashboards" class="table-of-contents__link toc-highlight">Built-in Dashboards</a></li><li><a href="#default-metrics-exporters" class="table-of-contents__link toc-highlight">Default Metrics Exporters</a></li><li><a href="#default-alerts" class="table-of-contents__link toc-highlight">Default Alerts</a></li><li><a href="#components-exposed-in-the-rancher-ui" class="table-of-contents__link toc-highlight">Components Exposed in the Rancher UI</a></li></ul></li><li><a href="#role-based-access-control" class="table-of-contents__link toc-highlight">Role-based Access Control</a></li><li><a href="#guides" class="table-of-contents__link toc-highlight">Guides</a></li><li><a href="#configuration" class="table-of-contents__link toc-highlight">Configuration</a><ul><li><a href="#configuring-monitoring-resources-in-rancher" class="table-of-contents__link toc-highlight">Configuring Monitoring Resources in Rancher</a></li><li><a href="#configuring-helm-chart-options" class="table-of-contents__link toc-highlight">Configuring Helm Chart Options</a></li></ul></li><li><a href="#windows-cluster-support" class="table-of-contents__link toc-highlight">Windows Cluster Support</a></li><li><a href="#known-issues" class="table-of-contents__link toc-highlight">Known Issues</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 © 2023 SUSE Rancher. 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