Review compatible OS, application components, and Kubernetes versions

Important: The Migrate to Containers UI in the Google Cloud console, migctl, and CRDs that use processing clusters to migrate workloads to Google Cloud are now deprecated. They are supported for existing users until May 2024, after which they will no longer be available. If you're new to Migrate to Containers, then use the Migrate to Containers CLI to perform migrations on your local machine. For more information, see Migrate to Containers CLI architecture.

This document lists operating systems, supported workloads, and Kubernetes versions that have been tested with Migrate to Containers.

To learn how to determine a virtual machine (VM) instance workload's fit for migration to a container, see Offline assessment overview.

Supported application components

Migrate to Containers supports modernization of application components listed in the following table:

Workload	Type (if applicable)	Supported versions
Linux system container		VMs running 64-bit Linux-based operating systems
Linux-based workloads	Tomcat	Apache Tomcat version 8.5 - 10.0
	Apache	Apache HTTP Server version 2.4
	JBoss	JBoss Application Server version 8.1.0 or later JBoss Enterprise Application Platform version 7.0 - 7.4
	WebSphere	WebSphere Application Server traditional version 8.55 and 9.05 All versions of WebSphere Application Server Liberty
	WordPress sites	WordPress version 4.0 or later running on Apache HTTP Server version 2.4
Windows IIS application		Microsoft Internet Information Services version 7 or later

Note: For workloads that use a Java-based plugin, Migrate to Containers CLI only supports Java SE version 8 or later. If your workload relies on an earlier version of Java, then you need to create a custom Docker image to execute the migration.

Source VM operating systems

Linux-based workloads

For Linux-based workloads, Migrate to Containers supports all Linux-based operating systems.

Linux system containers

Migrate to Containers supports migrations of VMs to containers on Google Kubernetes Engine on the 64-bit Linux operating systems listed in the following table:

OS	Compute Engine	VMware
CentOS	6.0 7.0 7.0 UEFI 8.0	6.7 6.9 7.6
Debian	7.0 8.0 9.0 10.0	9.4 9.6
RHEL	6.0 7.0 7.0 UEFI 7.4 SAP 7.6 SAP 8.0	6.5 7.5 7.6 8.3
SUSE	12 12 SP3 SAP 12 SP4 SAP 15 15 SAP 15 SP1 SAP	12 SP2 12 SP3 12 SP4 15
Ubuntu	12 LTS 14 LTS 16 LTS 16 LTS minimal 18 LTS 18 LTS minimal 18 LTS UEFI 19.04 19.04 minimal	12.04.5 LTS 14.04 LTS 16.04 LTS 18.04.10 LTS

Windows IIS application

Migrate to Containers supports migrations of VMs to containers on Google Kubernetes Engine on the Windows operating systems listed in the following table:

OS	Compute Engine
Windows	Microsoft Windows Server 2008R2 or later ASP.NET and .NET Framework version 3.5 or later

Warning: Dynamic disks have been deprecated by Microsoft, and have severe limitations with snapshots. Use caution when using these, especially in tandem with using snapshots for backup purposes.

Processing cluster operating systems

Linux-based workloads

• For Linux system containers, Migrate to Containers supports Ubuntu-based nodes.

• Clusters with Container-Optimized OS nodes can perform migrations for workloads with file-system types of ext2, ext3, or ext4.

Linux system container

• For Linux system containers, Migrate to Containers supports Ubuntu-based nodes.

• Clusters with Container-Optimized OS nodes can perform migrations for workloads with file-system types of ext2, ext3, or ext4.

Windows IIS application

The processing cluster can use any OS, such as Container-Optimized OS or Ubuntu. However, you must create a node pool on the cluster that uses a Windows node image. For more information, see Configuring a processing cluster for Windows IIS applications on Compute Engine.

Workload cluster operating systems

Linux-based workloads

For Linux-based workloads, Migrate to Containers supports all versions of all Linux-based nodes.

Linux system container

For Linux system containers, Migrate to Containers supports all versions of Ubuntu-based nodes.

Note: Before you run your migrated workloads, you must install migctl with runtime support for Container-Optimized OS nodes on your cluster.

Windows IIS application

For Windows IIS applications, Migrate to Containers fully supports all versions of Windows-based nodes.

What's next

• Learn how to set up Migrate to Containers.