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Billy Tat
6eb75c1d21
'Apps' applies to Rancher v2.6.5+ 'Apps & Marketplace' applies to v2.6.0-v2.6.4 Ref: https://github.com/rancher/dashboard/pull/5489
58 lines
2.9 KiB
Markdown
58 lines
2.9 KiB
Markdown
---
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title: Disabling Istio
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---
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This section describes how to uninstall Istio in a cluster or disable a namespace, or workload.
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## Uninstall Istio in a Cluster
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To uninstall Istio,
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<Tabs groupId="rancher-version">
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<TabItem value="Rancher v2.6.5+">
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1. Click **☰ > Cluster Management**.
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1. Go to the cluster that you created and click **Explore**.
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1. In the left navigation bar, click **Apps > Installed Apps**.
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1. In the `istio-system` namespace, go to `rancher-istio` and click **⋮ > Delete**.
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1. After `rancher-istio` is deleted, you can then select all the remaining apps in the `istio-system` namespace and click **Delete**.
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</TabItem>
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<TabItem value="Rancher before v2.6.5">
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1. Click **☰ > Cluster Management**.
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1. Go to the cluster that you created and click **Explore**.
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1. In the left navigation bar, click **Apps & Marketplace > Installed Apps**.
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1. In the `istio-system` namespace, go to `rancher-istio` and click **⋮ > Delete**.
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1. After `rancher-istio` is deleted, you can then select all the remaining apps in the `istio-system` namespace and click **Delete**.
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</TabItem>
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</Tabs>
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**Result:** The `rancher-istio` app in the cluster gets removed. The Istio sidecar cannot be deployed on any workloads in the cluster.
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:::note
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You can no longer disable and re-enable your Istio installation. If you would like to save your settings for a future install, view and save individual YAMLs to refer back to / reuse for future installations.
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:::
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**Troubleshooting Uninstall:** If you didn't follow the uninstall steps, you may encounter a warning during uninstall:
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`Error: uninstallation completed with 1 error(s): unable to build kubernetes objects for delete: unable to recognize "": no matches for kind "MonitoringDashboard" in version "monitoring.kiali.io/v1alpha1"`
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This could mean a few things. You either selected all the apps in the `istio-system` namespace and deleted them at the same time, or you deleted `rancher-istio` chart dependencies prior to deleting the `rancher-istio` chart. Since the uninstall did not complete properly, you will have resources remaining in the `istio-system` namespace that you will need to manually clean up. Another option to avoid manual clean up is to install `rancher-istio` again, then uninstall it in the correct order.
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## Disable Istio in a Namespace
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1. Click **☰ > Cluster Management**.
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1. Go to the cluster that you created and click **Explore**.
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1. Click **Cluster > Projects/Namespaces**.
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1. Go to the namespace where you want to enable Istio and click **⋮ > Enable Istio Auto Injection**. Alternately, click the namespace, and then on the namespace detail page, click **⋮ > Enable Istio Auto Injection**.
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**Result:** When workloads are deployed in this namespace, they will not have the Istio sidecar.
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## Remove the Istio Sidecar from a Workload
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Disable Istio in the namespace, then redeploy the workloads with in it. They will be deployed without the Istio sidecar.
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