rancher-docs/versioned_docs/version-2.5/how-to-guides/advanced-user-guides/istio-setup-guide/enable-istio-in-cluster.md

title, weight, aliases

title	weight	aliases
1. Enable Istio in the Cluster	1	/rancher/v2.5/en/istio/setup/enable-istio-in-cluster /rancher/v2.5/en/istio/v2.5/setup/enable-istio-in-cluster /rancher/v2.x/en/istio/v2.5/setup/enable-istio-in-cluster/

Prerequisites:

• Only a user with the cluster-admin Kubernetes default role assigned can configure and install Istio in a Kubernetes cluster.
• If you have pod security policies, you will need to install Istio with the CNI enabled. For details, see this section.
• To install Istio on an RKE2 cluster, additional steps are required. For details, see this section.
• To install Istio in a cluster where project network isolation is enabled, additional steps are required. For details, see this section.

1. From the Cluster Explorer, navigate to available Charts in Apps & Marketplace
2. Select the Istio chart from the rancher provided charts
3. If you have not already installed your own monitoring app, you will be prompted to install the rancher-monitoring app. Optional: Set your Selector or Scrape config options on rancher-monitoring app install.
4. Optional: Configure member access and resource limits for the Istio components. Ensure you have enough resources on your worker nodes to enable Istio.
5. Optional: Make additional configuration changes to values.yaml if needed.
6. Optional: Add additional resources or configuration via the overlay file.
7. Click Install.

Result: Istio is installed at the cluster level.

Additional Config Options

For more information on configuring Istio, refer to the configuration reference.