Note the following limitations when working with Windows nodes managed by the WMCO (Windows nodes):
The following OKD features are not supported on Windows nodes:
Image builds
OpenShift Pipelines
OpenShift Service Mesh
OpenShift monitoring of user-defined projects
OpenShift Serverless
Horizontal Pod Autoscaling
Vertical Pod Autoscaling
The following Red Hat features are not supported on Windows nodes:
Dual NIC is not supported on WMCO-managed Windows instances.
Windows nodes do not support workloads created by using deployment configs. You can use a deployment or other method to deploy workloads.
Red Hat OpenShift support for Windows Containers does not support adding Windows nodes to a cluster through a trunk port. The only supported networking configuration for adding Windows nodes is through an access port that carries traffic for the VLAN.
Red Hat OpenShift support for Windows Containers does not support any Windows operating system language other than English (United States).
Due to a limitation within the Windows operating system, clusterNetwork
CIDR addresses of class E, such as 240.0.0.0
, are not compatible with Windows nodes.
Kubernetes has identified the following node feature limitations :
Huge pages are not supported for Windows containers.
Privileged containers are not supported for Windows containers.
Kubernetes has identified several API compatibility issues.