Interface InstancePoolGcpAttributes

Availability type for the instances in the pool. One of:

• ON_DEMAND_GCP: the pool uses on-demand instances only.
• PREEMPTIBLE_GCP: the pool uses preemptible instances only.
• PREEMPTIBLE_WITH_FALLBACK_GCP: the pool acquires preemptible instances first, and falls back to on-demand instances when preemptible capacity is unavailable.

If provided, each node in the instance pool will have this number of local SSDs attached. Each local SSD is 375GB in size. Refer to GCP documentation for the supported number of local SSDs for each instance type.

Identifier for the availability zone/datacenter in which the cluster resides. This string will be of a form like "us-west1-a". The provided availability zone must be in the same region as the workspace. For example, "us-west1-a" is not a valid zone id if the workspace resides in the "us-east1" region. This is an optional field at instance pool creation, and if not specified, a default zone will be used.

This field can be one of the following:

• "HA" => High availability, spread nodes across availability zones for a deployment region
• "auto" => Auto-AZ. selects the availability zone for each cluster independently when the cluster launches, and retries another zone if the cluster can't be fulfilled because of insufficient capacity or quota. All nodes in a cluster land in the same zone, and different clusters backed by the pool can run in different zones.
• A GCP availability zone => Pick One of the available zones for (machine type + region) from https://cloud.google.com/compute/docs/regions-zones (e.g. "us-west1-a").

If empty, picks an availability zone to schedule the cluster on.

You can change the zone on an existing pool. New clusters use the updated zone, and existing clusters keep the zone they launched with.