Windows Container Support for Red Hat OpenShift enables running Windows compute nodes in an OKD cluster. Running Windows workloads is possible by using the Red Hat Windows Machine Config Operator (WMCO) to install and manage Windows nodes. With Windows nodes available, you can run Windows container workloads in OKD.
The release notes for Red Hat OpenShift for Windows Containers tracks the development of the WMCO, which provides all Windows container workload capabilities in OKD.
This release of the WMCO provides bug fixes for running Windows compute nodes in an OKD cluster. The components of the WMCO 6.0.0 were released in
The following information details the supported platform versions, Windows Server versions, and networking configurations for the Windows Machine Config Operator. See the vSphere documentation for any information that is relevant to only that platform.
The following table lists the Windows Server versions that are supported by WMCO 6.0.0, based on the applicable platform. Windows Server versions not listed are not supported and attempting to use them will cause errors. To prevent these errors, use only an appropriate version for your platform.
| Platform | Supported Windows Server version |
|---|---|
Amazon Web Services (AWS) |
Windows Server 2019 |
Microsoft Azure |
Windows Server 2019 |
VMware vSphere |
Windows Server 20H2 |
Bare metal or provider agnostic |
Windows Server 2019 |
Hybrid networking with OVN-Kubernetes is the only supported networking configuration. See the additional resources below for more information on this functionality. The following tables outline the type of networking configuration and Windows Server versions to use based on your platform. You must specify the network configuration when you install the cluster. Be aware that OpenShift SDN networking is the default network for OKD clusters. However, OpenShift SDN is not supported by WMCO.
| Platform | Supported networking |
|---|---|
Amazon Web Services (AWS) |
Hybrid networking with OVN-Kubernetes |
Microsoft Azure |
Hybrid networking with OVN-Kubernetes |
VMware vSphere |
Hybrid networking with OVN-Kubernetes with a custom VXLAN port |
bare metal |
Hybrid networking with OVN-Kubernetes |
| Hybrid networking with OVN-Kubernetes | Supported Windows Server version |
|---|---|
Default VXLAN port |
Windows Server Long-Term Servicing Channel (LTSC): Windows Server 2019 |
Custom VXLAN port |
Windows Server Semi-Annual Channel (SAC): Windows Server 20H2 |
|
Running Windows container workloads is not supported for clusters in a restricted network or disconnected environment. |