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GitHub
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<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></nav> <ul class="sidebar-links"><li><a href="/" class="sidebar-link">Home</a></li><li><section class="sidebar-group depth-0"><a href="/intro/" class="sidebar-heading clickable"><span>Introduction</span> <!----></a> <ul class="sidebar-links sidebar-group-items"><li><a href="/intro/" class="sidebar-link">Get Started</a></li><li><a href="/intro/faq.html" class="sidebar-link">FAQ</a></li></ul></section></li><li><section class="sidebar-group depth-0"><a href="/install/flagger-install-on-kubernetes" class="sidebar-heading clickable"><span>Install</span> <!----></a> <ul class="sidebar-links sidebar-group-items"><li><a href="/install/flagger-install-on-kubernetes.html" class="sidebar-link">On Kubernetes</a></li><li><a href="/install/flagger-install-on-google-cloud.html" class="sidebar-link">On GKE Istio</a></li><li><a href="/install/flagger-install-on-eks-appmesh.html" class="sidebar-link">On EKS App Mesh</a></li></ul></section></li><li><section class="sidebar-group depth-0"><a href="/usage/how-it-works" class="sidebar-heading clickable"><span>Usage</span> <!----></a> <ul class="sidebar-links sidebar-group-items"><li><a href="/usage/how-it-works.html" class="sidebar-link">How it works</a></li><li><a href="/usage/deployment-strategies.html" class="sidebar-link">Deployment Strategies</a></li><li><a href="/usage/metrics.html" class="sidebar-link">Metrics Analysis</a></li><li><a href="/usage/webhooks.html" class="sidebar-link">Webhooks</a></li><li><a href="/usage/alerting.html" class="sidebar-link">Alerting</a></li><li><a href="/usage/monitoring.html" class="sidebar-link">Monitoring</a></li></ul></section></li><li><section class="sidebar-group depth-0"><a href="/tutorials/istio-progressive-delivery" class="sidebar-heading clickable"><span>Tutorials</span> <!----></a> <ul class="sidebar-links sidebar-group-items"><li><a href="/tutorials/istio-progressive-delivery.html" class="sidebar-link">Istio Canaries</a></li><li><a href="/tutorials/istio-ab-testing.html" class="sidebar-link">Istio A/B Testing</a></li><li><a href="/tutorials/linkerd-progressive-delivery.html" class="sidebar-link">Linkerd Canaries</a></li><li><a href="/tutorials/appmesh-progressive-delivery.html" class="sidebar-link">App Mesh Canaries</a></li><li><a href="/tutorials/nginx-progressive-delivery.html" class="sidebar-link">NGINX Ingress Canaries</a></li><li><a href="/tutorials/gloo-progressive-delivery.html" class="sidebar-link">Gloo Canaries</a></li><li><a href="/tutorials/contour-progressive-delivery.html" class="sidebar-link">Contour Canaries</a></li><li><a href="/tutorials/kubernetes-blue-green.html" class="sidebar-link">Kubernetes Blue/Green</a></li><li><a href="/tutorials/canary-helm-gitops.html" class="sidebar-link">Canaries with Helm charts and GitOps</a></li></ul></section></li><li><section class="sidebar-group depth-0"><a href="/dev/dev-guide" class="sidebar-heading clickable open"><span>Dev</span> <!----></a> <ul class="sidebar-links sidebar-group-items"><li><a href="/dev/dev-guide.html" class="sidebar-link">Development Guide</a></li><li><a href="/dev/release-guide.html" class="sidebar-link">Release Guide</a></li><li><a href="/dev/upgrade-guide.html" class="active sidebar-link">Upgrade Guide</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/dev/upgrade-guide.html#upgrade-canaries-v1alpha3-to-v1beta1" class="sidebar-link">Upgrade canaries v1alpha3 to v1beta1</a></li></ul></li></ul></section></li></ul> </aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="upgrade-guide"><a href="#upgrade-guide" aria-hidden="true" class="header-anchor">#</a> Upgrade Guide</h1> <p>This document describes how to upgrade Flagger.</p> <h2 id="upgrade-canaries-v1alpha3-to-v1beta1"><a href="#upgrade-canaries-v1alpha3-to-v1beta1" aria-hidden="true" class="header-anchor">#</a> Upgrade canaries v1alpha3 to v1beta1</h2> <p>Canary CRD changes in <code>canaries.flagger.app/v1beta1</code>:</p> <ul><li>the <code>spec.canaryAnalysis</code> field has been deprecated and replaced with <code>spec.analysis</code></li> <li>the <code>spec.analysis.interval</code> and <code>spec.analysis.threshold</code> fields are required</li> <li>the <code>status.lastAppliedSpec</code> and <code>status.lastPromotedSpec</code> hashing algorithm changed to <code>hash/fnv</code></li> <li>the <code>spec.analysis.alerts</code> array can reference <code>alertproviders.flagger.app/v1beta1</code> resources</li> <li>the <code>spec.analysis.metrics[].templateRef</code> can reference a <code>metrictemplate.flagger.app/v1beta1</code> resource</li> <li>the <code>metric.threshold</code> field has been deprecated and replaced with <code>metric.thresholdRange</code></li> <li>the <code>spec.targetRef</code> can reference <code>DaemonSet</code> kind</li></ul> <p>Upgrade procedure:</p> <ul><li>install the <code>v1beta1</code> CRDs</li> <li>update Flagger deployment</li> <li>replace <code>apiVersion: flagger.app/v1alpha3</code> with <code>apiVersion: flagger.app/v1beta1</code> in all canary manifests</li> <li>replace <code>spec.canaryAnalysis</code> with <code>spec.analysis</code> in all canary manifests</li> <li>update canary manifests in cluster</li></ul> <p><strong>Note</strong> that after upgrading Flagger, all canaries will be triggered as the hash value used for tracking changes
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is computed differently. You can set <code>spec.skipAnalysis: true</code> in all canary manifests before upgrading Flagger,
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do the upgrade, wait for Flagger to finish the no-op promotions and finally set <code>skipAnalysis</code> to <code>false</code>.</p> <p>Update builtin metrics:</p> <ul><li>replace <code>threshold</code> with <code>thresholdRange.min</code> for request-success-rate</li> <li>replace <code>threshold</code> with <code>thresholdRange.max</code> for request-duration</li></ul> <div class="language-yaml extra-class"><pre class="language-yaml"><code><span class="token key atrule">metrics</span><span class="token punctuation">:</span>
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<span class="token punctuation">-</span> <span class="token key atrule">name</span><span class="token punctuation">:</span> request<span class="token punctuation">-</span>success<span class="token punctuation">-</span>rate
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<span class="token key atrule">thresholdRange</span><span class="token punctuation">:</span>
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<span class="token key atrule">min</span><span class="token punctuation">:</span> <span class="token number">99</span>
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<span class="token key atrule">interval</span><span class="token punctuation">:</span> 1m
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<span class="token punctuation">-</span> <span class="token key atrule">name</span><span class="token punctuation">:</span> request<span class="token punctuation">-</span>duration
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<span class="token key atrule">thresholdRange</span><span class="token punctuation">:</span>
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<span class="token key atrule">max</span><span class="token punctuation">:</span> <span class="token number">500</span>
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<span class="token key atrule">interval</span><span class="token punctuation">:</span> 1m
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