#Highly Available Shoot Control Plane

The Shoot resource offers a way to request for a highly available control plane.

#Zone Failure Tolerance

The failure tolerance of a zone will have the following characteristics:

• Control plane components will be spread across different availability zones. There will be one replica per zone for each control plane component which has more than one replica.
• Gardener scheduler will automatically select a Seed which has a minimum of 3 zones to host the Shoot control plane.
• A multi-node etcd (quorum size of 3) will be provisioned, offering zero-downtime capabilities with each member in a different zone.

#Shoot Spec

To request for a highly available Shoot control plane, Gardener provides the following configuration in the Shoot spec:

apiVersion: core.gardener.cloud/v1beta1
kind: Shoot
spec:
  controlPlane:
    highAvailability:
      failureTolerance:
        type: zone

#Example

1. Choose a Shoot cluster where you want to set-up HA control plane

2. Navigate to the YAML overview of the Shoot cluster and add mentioned code snippet under spec parameter

   

3. Click on SAVE button and wait until Shoot cluster is reconciled with HA setting