Istio in first-generation clusters

Go to VK Cloud management console.

Select project, where the cluster will be placed.

Go to Kubernetes clusters → Kubernetes clusters.

Find the cluster you need in the list.

Make sure that the cluster has a dedicated group of worker nodes that will host add-ons.

If there is no such group — add it.

Customise for this node group, if it hasn't already been done:

• Kubernetes labels: key addonNodes, value dedicated.
• Node taints: effect NoSchedule, key addonNodes, value dedicated.

Go to VK Cloud management console.

Select project, where the cluster will be placed.

Go to Kubernetes clusters → Kubernetes clusters.

Click on the name of the required cluster.

Go to Addons tab.

If there are already installed add-ons in the cluster, click the Add addon button.

Click the Install addon button on the istio add-on.

Edit if necessary:

• application name;
• the name of the namespace where the add-on will be installed;
• add-on settings code.

Set the necessary tolerations and nodeSelector in the add-on settings code:

 
tolerations:  - key: "addonNodes"    operator: "Equal"    value: "dedicated"    effect: "NoSchedule"

 
nodeSelector:  addonNodes: dedicated

Click the Install addon button.

The installation of the add-on in the cluster will begin. This process can take a long time.

Go to VK Cloud management console.

Select project, where the cluster will be placed.

Go to Kubernetes clusters → Kubernetes clusters.

Click on the name of the required cluster.

Go to Addons tab.

If there are already installed add-ons in the cluster, click the Add addon button.

Click the Install addon button on the istio add-on.

Edit if necessary:

• application name;
• the name of the namespace where the add-on will be installed;

Click the Install addon button.

The installation of the add-on in the cluster will begin. This process can take a long time.