10.4.4. Modifying workloads node placement in a heterogeneous cluster

Procedure

1. Open the HyperConverged CR in your default editor by running the following command:

   $ oc edit hyperconvergeds.v1beta1.hco.kubevirt.io kubevirt-hyperconverged -n openshift-cnv

2. Edit the HyperConverged CR, to modify the workloads node placement to include only nodes with a specific architecture. For example:

   apiVersion: hco.kubevirt.io/v1beta1
   kind: HyperConverged
   metadata:
     name: kubevirt-hyperconverged
   spec:
   #...
     workloads:
       nodePlacement:
         affinity:
           nodeAffinity:
             requiredDuringSchedulingIgnoredDuringExecution:
               nodeSelectorTerms:
                 - matchExpressions:
                     - key: kubernetes.io/arch
                       operator: In
                       values:
                         - <node_architecture>

   where:

   <node_architecture>

   Specifies the target architecture. For example, to limit placement to AMD nodes, use amd64.

3. Save and exit the editor to update the HyperConverged CR.