gcloud alpha compute advice capacity

gcloud alpha compute advice capacity - get capacity advice for Compute Engine resources

gcloud alpha compute advice capacity --provisioning-model=PROVISIONING_MODEL --size=SIZE --target-distribution-shape=TARGET_DISTRIBUTION_SHAPE (--instance-selection=INSTANCE_SELECTION --instance-selection-machine-types=[MACHINE_TYPE,…]) [--region=REGION] [--zones=[ZONE,…]] [GCLOUD_WIDE_FLAG …]

This command helps you view future resource availability for a specific number of VM instances, machine type, provisioning model, and zone. After you confirm resource availability, you can specify those configurations when you create VM instances. This action improves the success rate of your VM instance creation request.

gcloud alpha compute advice capacity --region="us-central1" --provisioning-model="SPOT" --size=100 --instance-selection-machine-types="n2-standard-32" --target-distribution-shape="any-single-zone"

To check the availability of 50 Spot VMs, allowing either e2-standard-8 or e2-standard-16 machine types, distributed across us-central1-a and us-central1-b, run the following command:

gcloud alpha compute advice capacity --region="us-central1" --provisioning-model="SPOT" --size=50 --instance-selection="name=my-selection,machine-type=e2-standard-8,machine-type=e2-standard-16" --target-distribution-shape="any" --zones="us-central1-a,us-central1-b"

--provisioning-model=PROVISIONING_MODEL

Specifies the provisioning model. PROVISIONING_MODEL must be (only one value is supported):

SPOT

Compute Engine may preempt a Spot VM whenever it needs capacity. Because Spot VMs don't have a guaranteed runtime, they come at a discounted price.

--size=SIZE

The total number of VMs being requested in the capacity query.

--target-distribution-shape=TARGET_DISTRIBUTION_SHAPE

Defines the distribution requirement for the requested VMs. TARGET_DISTRIBUTION_SHAPE must be one of:

ANY

When you specify ANY for VM instance creation across multiple zones, you specify that you want to create your VM instances in one or more zones based on resource availability, and to use any unused, matching reservation in your project. Use ANY for batch workloads that don't require high availability.

ANY_SINGLE_ZONE

When you specify ANY_SINGLE_ZONE for VM instance creation, you specify that you want to create all VM instances in a single available zone. Compute Engine selects this zone based on resource availability and on any unused, matching reservation in your project. However, zonal resource availability constraints might prevent Compute Engine from creating all your requested VM instances. Use ANY_SINGLE_ZONE when the VM instances in your workloads need to frequently communicate among each other.

Specifies the machine types for which advice is being sought.

At least one of these must be specified:

--instance-selection=INSTANCE_SELECTION

Named selection of machine types. For example, --instance-selection="name=instance-selection-1,machine-type=e2-standard-8,machine-type=t2d-standard-8".

--instance-selection-machine-types=[MACHINE_TYPE,…]

Specifies a comma-separated list of preferred machine types for creating virtual machines.

--region=REGION

Region of the resources to get advice on. If not specified, you might be prompted to select a region (interactive mode only).

To avoid prompting when this flag is omitted, you can set the compute/region property:

gcloud config set compute/region REGION

A list of regions can be fetched by running:

gcloud compute regions list

To unset the property, run:

gcloud config unset compute/region

Alternatively, the region can be stored in the environment variable CLOUDSDK_COMPUTE_REGION.

--zones=[ZONE,…]

A comma-separated list of zones to query within the specified region, for example, us-central1-a,us-central1-b. If you omit this flag, then you view availability for your requested capacity across all zones in the region.

Run $ gcloud help for details.