Fulfillment Order Management 4.x version supports OpenShift Container Platform starting from 402-HF3. We have the following in HF3 readme file:
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AF-8937
Support for OpenShift has been added in Fulfillment Order Management.
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OpenShift is also supported in TIBCO Order Management 5 - Long Running product.
Regarding OPE component, it is compatible with Openshift starting from FOM 4.0.1 version.