This documentation is for the most recent version of Anthos clusters on Azure, released on September 29th. See the Release notes for more information.
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Google Cloud management regions overview

Google Cloud management regions and locations

Clusters created with Anthos clusters on Azure are located in a Azure region. When you create a cluster, you specify both an Azure region for your cluster and a Google Cloud region that manages the cluster.

Each Google Cloud region can manage clusters in a specific set of nearby Azure regions. For example, the Google Cloud region us-east4, located in Oregon, manages clusters in the Azure regions canadacentral in Ontario, centralus in Iowa, eastus in Virginia, eastus2 in Virginia and southcentralus in Texas. Managing your clusters from nearby Google Cloud regions improves availability and reduces the latency of cluster management operations.

Anthos clusters on Azure includes the cluster's Google Cloud region in the cluster's resource name. For example, a cluster named my-cluster created in project my-project on region us-west1 has a resource name of projects/my-project/locations/us-west1/azureClusters/my-cluster. By contrast, the Azure region is part of the cluster resource. You can specify it in the azure_region field of API calls.

Data locality

To manage your clusters, the Anthos Multi-Cloud API must store information about your cluster's state in the Google Cloud region you specified when creating the cluster. This data doesn't include workload-specific data (which is stored in your cluster's region) but does include information such as Azure resource IDs and public key infrastructure (PKI) data.

If your application needs to store its data in a particular geographic region, specify an Azure region and its associated Google Cloud management region that comply with your requirements when you create your clusters.

Google Cloud regions and nearby Azure regions

Google Cloud Region Azure region
asia-east2 eastasia
asia-northeast2 japaneast
asia-south1 centralindia
asia-southeast1 australiaeast
japaneast
southeastasia
australia-southeast1 australiaeast
europe-north1 northeurope
norwayeast
europe-west1 francecentral
germanywestcentral
northeurope
uksouth
westeurope
europe-west2 uksouth
europe-west3 germanywestcentral
europe-west4 westeurope
europe-west6 switzerlandnorth
europe-west9 francecentral
northamerica-northeast1 canadacentral
southamerica-east1 brazilsouth
us-east4 canadacentral
centralus
eastus
eastus2
southcentralus
us-west1 westus2

You can fetch the most up-to-date list of current Azure regions supported by a Google Cloud region by running the following gcloud command:

gcloud container azure get-server-config --location GOOGLE_CLOUD_REGION

Replace GOOGLE_CLOUD_REGION with the name of the Google Cloud region you're querying.