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. Click ☰ > Cluster Management.
  2. Go to the where you want to enable Istio and click Explore.
  3. Click Apps & Marketplace.
  4. Click Charts.
  5. Click Istio.
  6. 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.
  7. Optional: Configure member access and resource limits for the Istio components. Ensure you have enough resources on your worker nodes to enable Istio.
  8. Optional: Make additional configuration changes to values.yaml if needed.
  9. Optional: Add additional resources or configuration via the overlay file.
  10. Click Install.

Result: Istio is installed at the cluster level.

Additional Config Options

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