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An OpenShift Container Platform cluster with multi-architecture compute machines is a cluster that supports compute machines with different architectures. Clusters with multi-architecture compute machines are available only on Amazon Web Services (AWS) or Microsoft Azure installer-provisioned infrastructures and bare metal, IBM Power®, and IBM Z® user-provisioned infrastructures with 64-bit x86 control plane machines.

When there are nodes with multiple architectures in your cluster, the architecture of your image must be consistent with the architecture of the node. You need to ensure that the pod is assigned to the node with the appropriate architecture and that it matches the image architecture. For more information on assigning pods to nodes, see Assigning pods to nodes.

The Cluster Samples Operator is not supported on clusters with multi-architecture compute machines. Your cluster can be created without this capability. For more information, see Cluster capabilities.

For information on migrating your single-architecture cluster to a cluster that supports multi-architecture compute machines, see Migrating to a cluster with multi-architecture compute machines.

Configuring your cluster with multi-architecture compute machines

To create a cluster with multi-architecture compute machines with different installation options and platforms, you can use the documentation in the following table:

Table 1. Cluster with multi-architecture compute machine installation options
Documentation section Platform User-provisioned installation Installer-provisioned installation Control Plane Compute node

Creating a cluster with multi-architecture compute machines on Azure

Microsoft Azure

x86_64

aarch64

Creating a cluster with multi-architecture compute machines on AWS

Amazon Web Services (AWS)

x86_64

aarch64

Creating a cluster with multi-architecture compute machines on GCP

Google Cloud Platform (GCP)

x86_64

aarch64

Creating a cluster with multi-architecture compute machines on bare metal, IBM Power, or IBM Z

Bare metal

x86_64

aarch64

IBM Power

x86_64 or ppc64le

x86_64, ppc64le

IBM Z

x86_64 or s390x

x86_64, s390x

Creating a cluster with multi-architecture compute machines on IBM Z® and IBM® LinuxONE with z/VM

IBM Z® and IBM® LinuxONE

x86_64

x86_64, s390x

Creating a cluster with multi-architecture compute machines on IBM Z® and IBM® LinuxONE with RHEL KVM

IBM Z® and IBM® LinuxONE

x86_64

x86_64, s390x

Creating a cluster with multi-architecture compute machines on IBM Power®

IBM Power®

x86_64

x86_64, ppc64le

Autoscaling from zero is currently not supported on Google Cloud Platform (GCP).