Installing Istio

Istio implements a service mesh, a low-latency infrastructure layer used to process a massive volume of network communications between services in a Managed Service for Kubernetes cluster.

Istio provides:

• Encrypted service-to-service communication in a cluster.
• Authentication across services.
• Load balancing for HTTP, TCP, RPC, and WebSocket traffic.
• Detailed traffic monitoring based on extensive routing rules.

The application contains Istio Ingress Gateway, a component for setting up an entry point for external traffic.

Getting startedGetting started

1. If you do not have the Yandex Cloud CLI yet, install and initialize it.

   The folder specified when creating the CLI profile is used by default. To change the default folder, use the yc config set folder-id <folder_ID> command. You can specify a different folder using the --folder-name or --folder-id parameter.

2. Make sure that the security groups for the Managed Service for Kubernetes cluster and its node groups are configured correctly. If any rule is missing, add it.

   Warning

   The configuration of security groups determines the performance and availability of the cluster and the services and applications running in it.

3. Install kubect and configure it to work with the new cluster.

Installation using Yandex Cloud MarketplaceInstallation using Yandex Cloud Marketplace

1. Navigate to the folder dashboard and select Managed Service for Kubernetes.
2. Click the name of the cluster you need and select the Marketplace tab.
3. Under Application available for installation, select Istio and click Go to install.
4. Configure the application:
   • Namespace: Create a new namespace, e.g., istio-space. If you leave the default namespace, Istio may work incorrectly.
   • Application name: Specify the application name.
   • Install add-ons: Select this option to automatically install add-ons: the Kiali management console, and such components as Grafana, Prometheus, Jaeger, and Loki.
5. Click Install.
6. Wait for the application to change its status to Deployed.

Installation using a Helm chartInstallation using a Helm chart

1. Install Helm v3.8.0 or higher.

2. Install kubect and configure it to work with the new cluster.

3. To install a Helm chart with Istio, run this command:

   helm pull oci://cr.yandex/yc-marketplace/yandex-cloud/istio/istio \
     --version 1.21.2-1 \
     --untar && \
   helm install \
     --namespace <namespace> \
     --create-namespace \
   istio ./istio/
   

   If you set namespace to the default namespace, Istio may work incorrectly. We recommend you to specify a value different from all existing namespaces (e.g., istio-space).

   Note

   If you are using a Helm version below 3.8.0, append the export HELM_EXPERIMENTAL_OCI=1 && \ string to the command to enable Open Container Initiative (OCI) support in the Helm client.

See alsoSee also

• Istio documentation.