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fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Kubernetes</span><meta 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">Spot Instance Node Pools</span><meta itemprop="position" content="2"></li></ul></nav><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>Spot Instance Node Pools</h1><p>Setting up spot instance node pools is a great way to save money on stateless applications</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="setting-up-node-taints">Setting Up Node Taints<a href="#setting-up-node-taints" class="hash-link" aria-label="Direct link to Setting Up Node Taints" title="Direct link to Setting Up Node Taints">​</a></h2><h2 class="anchor anchorWithStickyNavbar_LWe7" id="setting-up-pod-toleration">Setting Up Pod Toleration<a href="#setting-up-pod-toleration" class="hash-link" aria-label="Direct link to Setting Up Pod Toleration" title="Direct link to Setting Up Pod Toleration">​</a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="pod-toleration">Pod Toleration<a href="#pod-toleration" class="hash-link" aria-label="Direct link to Pod Toleration" title="Direct link to Pod Toleration">​</a></h3><h3 class="anchor anchorWithStickyNavbar_LWe7" id="daemonset-toleration">DaemonSet Toleration<a href="#daemonset-toleration" class="hash-link" aria-label="Direct link to DaemonSet Toleration" title="Direct link to DaemonSet Toleration">​</a></h3><p>Don&#x27;t forget to set the daemonset tolerations</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="setting-up-pod-disruption-budgets">Setting Up Pod Disruption Budgets<a href="#setting-up-pod-disruption-budgets" class="hash-link" aria-label="Direct link to Setting Up Pod Disruption Budgets" title="Direct link to Setting Up Pod Disruption Budgets">​</a></h2><p>Setting up a pod disruption budget is important due to erratic node shutdown possibility.
What could happen is that nodes that are hosting the applications start terminating, and our application becomes
unresponsive until the application is re-located to another node.
To avoid that situation, for the instances we need to configure pod disruption budget on our helm deployments.</p><div class="language-yaml codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-yaml codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token key atrule">apiVersion</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> policy/v1</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">kind</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> PodDisruptionBudget</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">metadata</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">name</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> application</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">name</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">spec</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">maxAvailable</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> 50%</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">selector</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">matchLabels</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">app</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> application</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">name</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></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 class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path 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 class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>For more details check out <a href="https://kubernetes.io/docs/tasks/run-application/configure-pdb/" target="_blank" rel="noopener noreferrer">here</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="setting-up-termination-handling">Setting Up Termination Handling<a href="#setting-up-termination-handling" class="hash-link" aria-label="Direct link to Setting Up Termination Handling" title="Direct link to Setting Up Termination Handling">​</a></h2><h2 class="anchor anchorWithStickyNavbar_LWe7" id="setting-up-k8s-cron-shutdown-cleanup">Setting Up K8s Cron Shutdown Cleanup<a href="#setting-up-k8s-cron-shutdown-cleanup" class="hash-link" aria-label="Direct link to Setting Up K8s Cron Shutdown Cleanup" title="Direct link to Setting Up K8s Cron Shutdown Cleanup">​</a></h2></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/foomo/foomo-docs/tree/main/foomo/docs/devops/kubernetes/spot-instance-node-pools.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 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