MCO yaml creation
Kernel Module Management (KMM) exposes a ProduceMachineConfig API that generates Machine Config Operator (MCO) YAML for Day 1 out-of-tree kernel module loading on OpenShift Container Platform. You apply the returned manifest to target nodes in a specified MachineConfigPool object.
ProduceMachineConfig(machineConfigName, machineConfigPoolRef, kernelModuleImage, kernelModuleName string) (string, error)The returned output is a string representation of the MCO YAML manifest to be applied. It is up to the customer to apply this YAML.
The parameters are:
machineConfigName-
The name of the MCO YAML manifest. This parameter is set as the
nameparameter of the metadata of the MCO YAML manifest. machineConfigPoolRef-
The
MachineConfigPoolname used to identify the targeted nodes. kernelModuleImage-
The name of the container image that includes the OOT kernel module.
kernelModuleName-
The name of the OOT kernel module. This parameter is used both to unload the in-tree kernel module (if loaded into the kernel) and to load the OOT kernel module.
The API is located under pkg/mcproducer package of the KMM source code. The KMM operator does not need to be running to use the Day 1 functionality. You only need to import the pkg/mcproducer package into their operator/utility code, call the API, and apply the produced MCO YAML to the cluster.