Currently in the descheduler operator readme (and code) there is no way to enable the RemovePodsViolatingNodeTaints strategy. This should be added to bring feature parity up-to-date with the descheduler
I think I see the problem. When you create a standalone pod, it has no OwnerReferences, and the descheduler will not evict any pods without ownerreferences (unless they have the special "evictable" label, see: https://github.com/kubernetes-sigs/descheduler/blob/e2a23f28480b3d439e7049c314a369013699faa1/pkg/descheduler/pod/pods.go#L34)
For that reason, the easiest way to test this would be to create your dedicated-nodes pod with the following annotation:
- image: "docker.io/ocpqe/hello-pod"
This instructs the descheduler that, even though this pod has no ownerreferences, it is evictable. Running this on my own cluster I successfully see the pod evicted
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.