CINXE.COM

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href=https://docs.crossplane.io/contribute/ class="d-inline-flex align-items-center">Contributing Guide</a></div></div><div class="section-container container pe-0 pt-1"><div class="container nav-container pe-0 d-flex w-100"><a class="d-flex w-100 border-0" href="https://github.com/orgs/crossplane/projects/20/views/9?pane=info" target=_blank>Crossplane Roadmap</a><div class="d-flex flex-shrink-1 sidebar-control-container align-self-center"><a href="https://github.com/orgs/crossplane/projects/20/views/9?pane=info"><svg class="flex bi"><use xlink:href="#box-arrow-up-right"/></svg></a></div></div></div></nav></div></div></aside><main class="bd-main order-1"><div class="bd-intro pt-2 ps-lg-2"><div class="d-md-flex flex-md-row-reverse align-items-center justify-content-between"><div class="mb-3 mb-md-0 d-flex"><div class="dropdown float-end bd-dropdown"><a class="btn btn-outline-secondary dropdown-toggle bd-dropdown-item text-reset" href=# role=button id=dropdownMenuLink data-bs-toggle=dropdown aria-haspopup=true aria-expanded=false>master</a><div class="dropdown-menu bd-border-color bd-dropdown" aria-labelledby=dropdownMenuLink><a class="dropdown-item bd-dropdown-item active" aria-current=true href=https://docs.crossplane.io/master/concepts/pods/>master</a> <a class="dropdown-item bd-dropdown-item" href=https://docs.crossplane.io/v1.18/concepts/pods/>v1.18<div class="badge rounded-pill latest">Latest</div></a><a class="dropdown-item bd-dropdown-item" href=https://docs.crossplane.io/v1.17/concepts/pods/>v1.17</a> <a class="dropdown-item bd-dropdown-item" href=https://docs.crossplane.io/v1.16/concepts/pods/>v1.16</a></div></div></div><h1 class="bd-title mb-0" id=content>Crossplane Pods</h1></div></div><div class="bd-toc mt-3 mb-5 my-lg-0 ps-xl-3 mb-lg-5"><button class="btn btn-link p-md-0 mb-2 mb-md-0 text-decoration-none bd-toc-toggle d-md-none" type=button data-bs-toggle=collapse data-bs-target=#tocContents aria-expanded=false aria-controls=tocContents> On this page<svg class="bi d-md-none ms-2" aria-hidden="true"><use xlink:href="#chevron-expand"/></svg></button> <strong class="d-none d-md-block h6 my-2">On this page</strong><hr class="d-none d-md-block my-2"><div class="collapse bd-toc-collapse" id=tocContents><nav id=TableOfContents><ul class=nav><li class=nav-item><a class=nav-link href=#crossplane-pod>Crossplane pod</a><ul class=nav><li class=nav-item><a class=nav-link href=#init-container>Init container</a></li><li class=nav-item><a class=nav-link href=#core-container>Core container</a><ul class=nav><li class=nav-item><a class=nav-link href=#reconcile-loop>Reconcile loop</a><ul class=nav><li class=nav-item><a class=nav-link href=#enable-real-time-compositions>Enable real time Compositions</a></li><li class=nav-item><a class=nav-link href=#reconcile-retry-rate>Reconcile retry rate</a></li><li class=nav-item><a class=nav-link href=#number-of-reconcilers>Number of reconcilers</a></li></ul></li></ul></li></ul></li><li class=nav-item><a class=nav-link href=#rbac-manager-pod>RBAC manager pod</a><ul class=nav><li class=nav-item><a class=nav-link href=#disable-the-rbac-manager>Disable the RBAC manager</a></li><li class=nav-item><a class=nav-link href=#rbac-init-container>RBAC init container</a></li><li class=nav-item><a class=nav-link href=#rbac-manager-container>RBAC manager container</a><ul class=nav><li class=nav-item><a class=nav-link href=#crossplane-clusterroles>Crossplane ClusterRoles</a><ul class=nav><li class=nav-item><a class=nav-link href=#crossplane-admin>crossplane-admin</a></li><li class=nav-item><a class=nav-link href=#crossplane-edit>crossplane-edit</a></li><li class=nav-item><a class=nav-link href=#crossplane-view>crossplane-view</a></li><li class=nav-item><a class=nav-link href=#crossplane-browse>crossplane-browse</a></li></ul></li></ul></li></ul></li><li class=nav-item><a class=nav-link href=#leader-election>Leader election</a></li><li class=nav-item><a class=nav-link href=#change-pod-settings>Change pod settings</a><ul class=nav><li class=nav-item><a class=nav-link href=#edit-the-deployment>Edit the deployment</a></li><li class=nav-item><a class=nav-link href=#use-environmental-variables>Use environmental variables</a></li></ul></li></ul></li></ul></nav><nav class=pt-3><div class=pb-2><svg class="bi" width="1em" height="1em"><use xlink:href="#pencil-square"/></svg><span class=ps-1><a target=_blank href="https://github.com/crossplane/docs/issues/new?title=[Web%20Bug]%20-%20Crossplane%20Pods&body=%3c!--%20What%27s%20the%20problem?%20--%3e%0a%0a%0aURL:%20https://docs.crossplane.io/master/concepts/pods/">Report a problem</a></span></div><div><svg class="bi" width="1em" height="1em"><use xlink:href="#github"/></svg><span class=ps-1><a href=https://github.com/crossplane/docs/tree/master/content/master/concepts/pods.md>View page source</a></span></div></div></nav></div><div class="bd-content ps-lg-2 DocSearch-content"><div class="bd-callout bd-callout-danger d-flex flex-column w-100"><div class="d-flex bd-title fs-6 fw-bold border-bottom border-danger"><div class="d-flex pe-3 align-self-center"><svg class="bi flex-shrink-0" role="img" aria-label="Warning:"><use xlink:href="#fire"/></svg></div><div class=d-flex>This document is for an unreleased version of Crossplane.</div></div><div class=mt-3><p>This document applies to the Crossplane <code>master</code> branch and not to the latest release v1.18.</p></div></div><p>The base Crossplane installation consists of two pods, the <code>crossplane</code> pod and the <code>crossplane-rbac-manager</code> pod. Both pods install in the <code>crossplane-system</code> namespace by default.</p><h2 id=crossplane-pod>Crossplane pod <a class=anchor-link id=crossplane-pod href=#crossplane-pod aria-label="Link to this section: Crossplane pod"></a></h2><h3 id=init-container>Init container <a class=anchor-link id=init-container href=#init-container aria-label="Link to this section: Init container"></a></h3><p>Before starting the core Crossplane container an <em>init</em> container runs. The init container installs the core Crossplane <a href=https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/#customresourcedefinitions>Custom Resource Definitions</a> (<code>CRDs</code>), configures Crossplane webhooks and installs any supplied Providers or Configurations.</p><div class="admonition tip d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="tip:"><use xlink:href="#check"/></svg><span class=ps-1>Tip</span></div><div class=admonition-content>The Kubernetes documentation contains more information about <a href=https://kubernetes.io/docs/concepts/workloads/pods/init-containers/>init containers</a>.</div></div><p>The settings the init container sets include installing Provider or Configuration packages with Crossplane, customizing the namespace Crossplane installs in and defining webhook configurations.</p><p>The core CRDs installed by the init container include:</p><ul><li>CompositeResourceDefinitions, Compositions, Configurations and Providers</li><li>Locks to manage package dependencies</li><li>DeploymentRuntimeConfigs to apply settings to installed Providers and Functions</li><li>StoreConfigs for connecting external secret stores like <a href=https://www.vaultproject.io/>HashiCorp Vault</a></li></ul><div class="admonition note d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="note:"><use xlink:href="#info"/></svg><span class=ps-1>Note</span></div><div class=admonition-content>The <a href=https://docs.crossplane.io/master/software/install/>Install Crossplane</a> section has more information about customizing the Crossplane install.</div></div><p>The status <code>Init</code> on the Crossplane pod is the init container running.</p><div class=highlight><pre tabindex=0 class=chroma><code class=language-shell data-lang=shell><span class=line><span class=ln id=hl-0-1><a class=lnlinks href=#hl-0-1>1</a></span><span class=cl>kubectl get pods -n crossplane-system </span></span><span class=line><span class=ln id=hl-0-2><a class=lnlinks href=#hl-0-2>2</a></span><span class=cl>NAME READY STATUS RESTARTS AGE </span></span><span class=line><span class=ln id=hl-0-3><a class=lnlinks href=#hl-0-3>3</a></span><span class=cl>crossplane-9f6d5cd7b-r9j8w 0/1 Init:0/1 <span class=m>0</span> 6s </span></span></code></pre></div><p>The init container completes and starts the Crossplane core container automatically.</p><div class=highlight><pre tabindex=0 class=chroma><code class=language-shell data-lang=shell><span class=line><span class=ln id=hl-1-1><a class=lnlinks href=#hl-1-1>1</a></span><span class=cl>kubectl get pods -n crossplane-system </span></span><span class=line><span class=ln id=hl-1-2><a class=lnlinks href=#hl-1-2>2</a></span><span class=cl>NAME READY STATUS RESTARTS AGE </span></span><span class=line><span class=ln id=hl-1-3><a class=lnlinks href=#hl-1-3>3</a></span><span class=cl>crossplane-9f6d5cd7b-r9j8w 1/1 Running <span class=m>0</span> 15s </span></span></code></pre></div><h3 id=core-container>Core container <a class=anchor-link id=core-container href=#core-container aria-label="Link to this section: Core container"></a></h3><p>The main Crossplane container, called the <em>core</em> container, enforces the desired state of Crossplane resources, manages leader elections and process webhooks.</p><div class="admonition note d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="note:"><use xlink:href="#info"/></svg><span class=ps-1>Note</span></div><div class=admonition-content>The Crossplane pod only reconciles core Crossplane components, including Claims and composite resources. Providers are responsible for reconciling their managed resources.</div></div><h4 id=reconcile-loop>Reconcile loop <a class=anchor-link id=reconcile-loop href=#reconcile-loop aria-label="Link to this section: Reconcile loop"></a></h4><p>The core container operates on a <em>reconcile loop</em>, constantly checking the status of deployed resources and correcting any “drift.” After checking a resource Crossplane waits some time and checks again.</p><p>Crossplane monitors resources through a Kubernetes <a href=https://kubernetes.io/docs/reference/using-api/api-concepts/#efficient-detection-of-changes><em>watch</em></a> or through periodic polling. Some resources may be both watched and polled.</p><p>Crossplane requests that the API server notifies Crossplane of any changes on objects. This notification tool is a <em>watch</em>.</p><p>Watched objects include Providers, managed resources and CompositeResourceDefinitions.</p><p>For objects that Kubernetes can’t provide a watch for, Crossplane periodically poll the resource to find it’s state. The default polling rate is one minute. Change the polling rate with the <code>--poll-interval</code> pod argument.</p><p>Reducing the poll-interval value causes Crossplane to poll resources more frequently. This increases the load of the Crossplane pod and results in more frequent provider API calls.</p><p>Increasing the poll-interval causes Crossplane to poll resources less frequently. This increases the maximum time until Crossplane discovers changes in the cloud provider that require updating.</p><p>Managed resources use polling.</p><div class="admonition note d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="note:"><use xlink:href="#info"/></svg><span class=ps-1>Note</span></div><div class=admonition-content>Managed resources watch for Kubernetes events like deletion or changes to their <code>spec</code>. Managed resources rely on polling to detect changes in the external system.</div></div><p>Crossplane double-checks all resources to confirm they’re in the desired state. Crossplane does this every one hour by default. Use the <code>--sync-interval</code> Crossplane pod argument to change this interval.</p><p>The <code>--max-reconcile-rate</code> rate defines the rate, in times per second, Crossplane reconciles resources.</p><p>Reducing the <code>--max-reconcile-rate</code>, or making it smaller, reduces CPU resources Crossplane uses, but increases the amount of time until changed resources are fully synced.</p><p>Increasing the <code>--max-reconcile-rate</code>, or making it larger, increases the CPU resources Crossplane uses but allows Crossplane to reconcile all resources faster.</p><div class="admonition important d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="important:"><use xlink:href="#exclamation"/></svg><span class=ps-1>Important</span></div><div class=admonition-content>Most Providers use their own <code>--max-reconcile-rate</code>. This determines the same settings for Providers and their managed resources. Applying the <code>--max-reconcile-rate</code> to Crossplane only controls the rate for core Crossplane resources.</div></div><h5 id=enable-real-time-compositions>Enable real time Compositions <a class=anchor-link id=enable-real-time-compositions href=#enable-real-time-compositions aria-label="Link to this section: Enable real time Compositions"></a></h5><p>With real time compositions enabled Crossplane watches every composed resource with a Kubernetes watch. Crossplane receives events from the Kubernetes API server when a composed resource changes. For example, when a provider sets the <code>Ready</code> condition to <code>true</code>.</p><div class="admonition important d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="important:"><use xlink:href="#exclamation"/></svg><span class=ps-1>Important</span></div><div class=admonition-content>Real time compositions are an alpha feature. Alpha features aren’t enabled by default.</div></div><p>With real time compositions enabled, Crossplane doesn’t use the <code>--poll-interval</code> settings.</p><p>Enable real time compositions support by <a href=https://docs.crossplane.io/master/concepts/pods/#change-pod-settings>changing the Crossplane pod setting</a> and enabling<br><code><highlight-term id=1731573034259132532 data-label=deployment data-line=12>--enable-realtime-compositions</highlight-term></code> argument.</p><div class=highlight label=deployment copy-lines=12><pre tabindex=0 class=chroma><code class=language-yaml data-lang=yaml><span class=line><span class=ln id=hl-2-1><a class=lnlinks href=#hl-2-1> 1</a></span><span class=cl><span class=l>$ kubectl edit deployment crossplane --namespace crossplane-system</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-2><a class=lnlinks href=#hl-2-2> 2</a></span><span class=cl><span class=w></span><span class=nt>apiVersion</span><span class=p>:</span><span class=w> </span><span class=l>apps/v1</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-3><a class=lnlinks href=#hl-2-3> 3</a></span><span class=cl><span class=w></span><span class=nt>kind</span><span class=p>:</span><span class=w> </span><span class=l>Deployment</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-4><a class=lnlinks href=#hl-2-4> 4</a></span><span class=cl><span class=w></span><span class=nt>spec</span><span class=p>:</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-5><a class=lnlinks href=#hl-2-5> 5</a></span><span class=cl><span class=w></span><span class=c># Removed for brevity</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-6><a class=lnlinks href=#hl-2-6> 6</a></span><span class=cl><span class=w> </span><span class=nt>template</span><span class=p>:</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-7><a class=lnlinks href=#hl-2-7> 7</a></span><span class=cl><span class=w> </span><span class=nt>spec</span><span class=p>:</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-8><a class=lnlinks href=#hl-2-8> 8</a></span><span class=cl><span class=w> </span><span class=nt>containers</span><span class=p>:</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-9><a class=lnlinks href=#hl-2-9> 9</a></span><span class=cl><span class=w> </span>- <span class=nt>args</span><span class=p>:</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-10><a class=lnlinks href=#hl-2-10>10</a></span><span class=cl><span class=w> </span>- <span class=l>core</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-11><a class=lnlinks href=#hl-2-11>11</a></span><span class=cl><span class=w> </span>- <span class=l>start</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-2-12><a class=lnlinks href=#hl-2-12>12</a></span><span class=cl><span class=w> </span>- --<span class=l>enable-realtime-compositions</span><span class=w> </span></span></span></code></pre></div><div class="admonition tip d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="tip:"><use xlink:href="#check"/></svg><span class=ps-1>Tip</span></div><div class=admonition-content>The <a href=https://docs.crossplane.io/master/software/install/#feature-flags>Crossplane install guide</a> describes enabling feature flags like <code><highlight-term id=1731573034259169827 data-label=deployment data-line=12>–enable-realtime-compositions</highlight-term></code> with Helm.</div></div><h5 id=reconcile-retry-rate>Reconcile retry rate <a class=anchor-link id=reconcile-retry-rate href=#reconcile-retry-rate aria-label="Link to this section: Reconcile retry rate"></a></h5><p>The <code>--max-reconcile-rate</code> setting configures the number of times per second Crossplane or a provider attempts to correct a resource. The default value is 10 times per second.</p><p>All core Crossplane components share the reconcile rate. Each Provider implements their own max reconcile rate setting.</p><h5 id=number-of-reconcilers>Number of reconcilers <a class=anchor-link id=number-of-reconcilers href=#number-of-reconcilers aria-label="Link to this section: Number of reconcilers"></a></h5><p>The second value <code>--max-reconcile-rate</code> defines is the number of resources that Crossplane can reconcile at once. If there are more resources than the configured <code>--max-reconcile-rate</code> the remaining resources must wait until Crossplane reconciles a an existing resource.</p><p>Read the <a href=#change-pod-settings>Change Pod Settings</a> section for instructions on applying these settings.</p><h2 id=rbac-manager-pod>RBAC manager pod <a class=anchor-link id=rbac-manager-pod href=#rbac-manager-pod aria-label="Link to this section: RBAC manager pod"></a></h2><p>The Crossplane RBAC manager pod automates required Kubernetes RBAC permissions for Crossplane and Crossplane Providers.</p><div class="admonition note d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="note:"><use xlink:href="#info"/></svg><span class=ps-1>Note</span></div><div class=admonition-content><p>Crossplane installs and enables the RBAC manager by default. Disabling the RBAC manager requires manual Kubernetes permissions definitions for proper Crossplane operations.</p><p>The <a href=https://github.com/crossplane/crossplane/blob/main/design/design-doc-rbac-manager.md>RBAC manager design document</a> provides more comprehensive details on the Crossplane RBAC requirements.</p></div></div><h3 id=disable-the-rbac-manager>Disable the RBAC manager <a class=anchor-link id=disable-the-rbac-manager href=#disable-the-rbac-manager aria-label="Link to this section: Disable the RBAC manager"></a></h3><p>Disable the RBAC manager after installation by deleting the <code>crossplane-rbac-manager</code> deployment from the <code>crossplane-system</code> namespace.</p><p>Disable the RBAC manager before installation by editing the Helm <code>values.yaml</code> file, setting <code>rbacManager.deploy</code> to <code>false</code>.</p><div class="admonition note d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="note:"><use xlink:href="#info"/></svg><span class=ps-1>Note</span></div><div class=admonition-content>Instructions for changing Crossplane pod settings during installation are in the <a href=https://docs.crossplane.io/master/software/install/>Crossplane Install</a> section.</div></div><h3 id=rbac-init-container>RBAC init container <a class=anchor-link id=rbac-init-container href=#rbac-init-container aria-label="Link to this section: RBAC init container"></a></h3><p>The RBAC manager requires the <code>CompositeResourceDefinition</code> and <code>ProviderRevision</code> resources to be available before starting.</p><p>The RBAC manager init container waits for these resources before starting the main RBAC manager container.</p><h3 id=rbac-manager-container>RBAC manager container <a class=anchor-link id=rbac-manager-container href=#rbac-manager-container aria-label="Link to this section: RBAC manager container"></a></h3><p>The RBAC manager container preforms the following tasks:</p><ul><li>creating and binding RBAC roles to Provider ServiceAccounts, allowing them to control their managed resources</li><li>allowing the <code>crossplane</code> ServiceAccount to create managed resources</li><li>creating ClusterRoles to access Crossplane resources in all namespaces</li></ul><p>Use the <a href=#crossplane-clusterroles>ClusterRoles</a> to grant access to all Crossplane resources in the cluster.</p><h4 id=crossplane-clusterroles>Crossplane ClusterRoles <a class=anchor-link id=crossplane-clusterroles href=#crossplane-clusterroles aria-label="Link to this section: Crossplane ClusterRoles"></a></h4><p>The RBAC manager creates four Kubernetes ClusterRoles. These Roles grant permissions over cluster wide Crossplane resources.</p><h5 id=crossplane-admin>crossplane-admin <a class=anchor-link id=crossplane-admin href=#crossplane-admin aria-label="Link to this section: crossplane-admin"></a></h5><p>The <code>crossplane-admin</code> ClusterRole has the following permissions:</p><ul><li>full access to all Crossplane types</li><li>full access to all secrets and namespaces (even those unrelated to Crossplane)</li><li>read-only access to all cluster RBAC roles, CustomResourceDefinitions and events</li><li>ability to bind RBAC roles to other entities.</li></ul><p>View the full RBAC policy with</p><div class=highlight><pre tabindex=0 class=chroma><code class=language-shell data-lang=shell><span class=line><span class=ln id=hl-3-1><a class=lnlinks href=#hl-3-1>1</a></span><span class=cl>kubectl describe clusterrole crossplane-admin </span></span></code></pre></div><h5 id=crossplane-edit>crossplane-edit <a class=anchor-link id=crossplane-edit href=#crossplane-edit aria-label="Link to this section: crossplane-edit"></a></h5><p>The <code>crossplane-edit</code> ClusterRole has the following permissions:</p><ul><li>full access to all Crossplane types</li><li>full access to all secrets (even those unrelated to Crossplane)</li><li>read-only access to all namespaces and events (even those unrelated to Crossplane).</li></ul><p>View the full RBAC policy with</p><div class=highlight><pre tabindex=0 class=chroma><code class=language-shell data-lang=shell><span class=line><span class=ln id=hl-4-1><a class=lnlinks href=#hl-4-1>1</a></span><span class=cl>kubectl describe clusterrole crossplane-edit </span></span></code></pre></div><h5 id=crossplane-view>crossplane-view <a class=anchor-link id=crossplane-view href=#crossplane-view aria-label="Link to this section: crossplane-view"></a></h5><p>The <code>crossplane-view</code> ClusterRole has the following permissions:</p><ul><li>read-only access to all Crossplane types</li><li>read-only access to all namespaces and events (even those unrelated to Crossplane).</li></ul><p>View the full RBAC policy with</p><div class=highlight><pre tabindex=0 class=chroma><code class=language-shell data-lang=shell><span class=line><span class=ln id=hl-5-1><a class=lnlinks href=#hl-5-1>1</a></span><span class=cl>kubectl describe clusterrole crossplane-view </span></span></code></pre></div><h5 id=crossplane-browse>crossplane-browse <a class=anchor-link id=crossplane-browse href=#crossplane-browse aria-label="Link to this section: crossplane-browse"></a></h5><p>The <code>crossplane-browse</code> ClusterRole has the following permissions:</p><ul><li>read-only access to Crossplane compositions and XRDs. This allows resource claim creators to discover and select an appropriate composition.</li></ul><p>View the full RBAC policy with</p><div class=highlight><pre tabindex=0 class=chroma><code class=language-shell data-lang=shell><span class=line><span class=ln id=hl-6-1><a class=lnlinks href=#hl-6-1>1</a></span><span class=cl>kubectl describe clusterrole crossplane-browse </span></span></code></pre></div><h2 id=leader-election>Leader election <a class=anchor-link id=leader-election href=#leader-election aria-label="Link to this section: Leader election"></a></h2><p>By default only a single Crossplane pod runs in a cluster. If more than one Crossplane pod runs both pods try to manage Crossplane resources. To prevent conflicts Crossplane uses a <em>leader election</em> to have a single pod in control at a time. Other Crossplane pods standby until the leader fails.</p><div class="admonition note d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="note:"><use xlink:href="#info"/></svg><span class=ps-1>Note</span></div><div class=admonition-content><p>It’s possible to run more than one Crossplane or RBAC manager pods for redundancy.</p><p>Kubernetes restarts any failed Crossplane or RBAC manager pods. Redundant pods aren’t required in most deployments.</p></div></div><p>Both the Crossplane pod and the RBAC manager pods support leader elections.</p><p>Enable leader elections with the <code>--leader-election</code> pod argument.</p><div class="admonition warning d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="warning:"><use xlink:href="#fire"/></svg><span class=ps-1>Warning</span></div><div class=admonition-content><p>Running multiple Crossplane pods without leader election is unsupported.</p></div></div><h2 id=change-pod-settings>Change pod settings <a class=anchor-link id=change-pod-settings href=#change-pod-settings aria-label="Link to this section: Change pod settings"></a></h2><p>Change Crossplane pod settings either before installing Crossplane by editing the Helm <code>values.yml</code> file or after installation by editing the <code>Deployment</code>.</p><p>The full list of <a href=https://docs.crossplane.io/master/software/install/#customize-the-crossplane-helm-chart>configuration options</a> and <a href=https://docs.crossplane.io/master/software/install/#customize-the-crossplane-helm-chart>feature flags</a> are available in the <a href=https://docs.crossplane.io/master/software/install/>Crossplane Install</a> section.</p><div class="admonition note d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="note:"><use xlink:href="#info"/></svg><span class=ps-1>Note</span></div><div class=admonition-content>Instructions for changing Crossplane pod settings during installation are in the <a href=https://docs.crossplane.io/master/software/install/>Crossplane Install</a> section.</div></div><h3 id=edit-the-deployment>Edit the deployment <a class=anchor-link id=edit-the-deployment href=#edit-the-deployment aria-label="Link to this section: Edit the deployment"></a></h3><div class="admonition note d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="note:"><use xlink:href="#info"/></svg><span class=ps-1>Note</span></div><div class=admonition-content>These settings apply to both the <code>crossplane</code> and <code>rbac-manager</code> pods and <code>Deployments</code>.</div></div><p>To change the settings of an installed Crossplane pod, edit the <code>crossplane</code> deployment in the <code>crossplane-system</code> namespace with the command</p><p><code>kubectl edit deployment crossplane --namespace crossplane-system</code></p><div class="admonition warning d-flex flex-column mx-4 p-0"><div class=admonition-title><svg class="bi flex-shrink-0" role="img" aria-label="warning:"><use xlink:href="#fire"/></svg><span class=ps-1>Warning</span></div><div class=admonition-content>Updating the Crossplane deployment restarts the Crossplane pod.</div></div><p>Add Crossplane pod arguments to the <code><highlight-term id=1731573034259585277 data-label=args data-line=9>spec.template.spec.containers[].args</highlight-term></code> section of the deployment.</p><p>For example, to change the <code>sync-interval</code> add <code><highlight-term id=1731573034259604148 data-label=args data-line=12>--sync-interval=30m</highlight-term></code>.</p><div class=highlight label=args copy-lines=1><pre tabindex=0 class=chroma><code class=language-yaml data-lang=yaml><span class=line><span class=ln id=hl-7-1><a class=lnlinks href=#hl-7-1> 1</a></span><span class=cl><span class=l>kubectl edit deployment crossplane --namespace crossplane-system</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-2><a class=lnlinks href=#hl-7-2> 2</a></span><span class=cl><span class=w></span><span class=nt>apiVersion</span><span class=p>:</span><span class=w> </span><span class=l>apps/v1</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-3><a class=lnlinks href=#hl-7-3> 3</a></span><span class=cl><span class=w></span><span class=nt>kind</span><span class=p>:</span><span class=w> </span><span class=l>Deployment</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-4><a class=lnlinks href=#hl-7-4> 4</a></span><span class=cl><span class=w></span><span class=nt>spec</span><span class=p>:</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-5><a class=lnlinks href=#hl-7-5> 5</a></span><span class=cl><span class=w></span><span class=c># Removed for brevity</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-6><a class=lnlinks href=#hl-7-6> 6</a></span><span class=cl><span class=w> </span><span class=nt>template</span><span class=p>:</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-7><a class=lnlinks href=#hl-7-7> 7</a></span><span class=cl><span class=w> </span><span class=nt>spec</span><span class=p>:</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-8><a class=lnlinks href=#hl-7-8> 8</a></span><span class=cl><span class=w> </span><span class=nt>containers</span><span class=p>:</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-9><a class=lnlinks href=#hl-7-9> 9</a></span><span class=cl><span class=w> </span>- <span class=nt>args</span><span class=p>:</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-10><a class=lnlinks href=#hl-7-10>10</a></span><span class=cl><span class=w> </span>- <span class=l>core</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-11><a class=lnlinks href=#hl-7-11>11</a></span><span class=cl><span class=w> </span>- <span class=l>start</span><span class=w> </span></span></span><span class=line><span class=ln id=hl-7-12><a class=lnlinks href=#hl-7-12>12</a></span><span class=cl><span class=w> </span>- --<span class=l>sync-interval=30m</span><span class=w> </span></span></span></code></pre></div><h3 id=use-environmental-variables>Use environmental variables <a class=anchor-link id=use-environmental-variables href=#use-environmental-variables aria-label="Link to this section: Use environmental variables"></a></h3><p>The core Crossplane pod checks for configured environmental variables at startup to change default settings.</p><p>The full list of configurable environmental variables are available in the <a href=https://docs.crossplane.io/master/software/install/>Crossplane Install</a> section.</p></div></main></div><footer class="bd-footer p-5"><div class="container text-center"><div class="row pb-5 top-row"><div class="col-lg img-col"><img src=/img/crossplane-logo.svg alt="Crossplane logo" srcset="/img/crossplane-logo.svg 1x, /img/crossplane-logo.svg 2x" width=185 height=40 decoding=async data-nimg=future loading=lazy class="d-flex crossplane-footer"></div><div class="col-lg links-col d-fill justify-content-evenly ms-5"><div 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