cluster-workers-scaling job it's changing machineset of infra nodes instead of workers when scaling down after workload

[skordas]

Example build:
https://mastern-jenkins-csb-openshift-qe.apps.ocp-c1.prod.psi.redhat.com/job/scale-ci/job/e2e-benchmarking-multibranch-pipeline/job/kube-burner/298/

Flow:

• kube-burner is starting new cluster-workers-scaling job to scale up the cluster.
• cluster-workers-scaling job is running cluster-post-config to create infra nodes.
• kube-burner is running workload
• kube-burner is starting new cluster-workers-scaling job to scale down the cluster.

When my cluster name is ex. skordas - then first machineset on list is infra node

 NAMESPACE               NAME                                   DESIRED   CURRENT   READY   AVAILABLE   AGE
 openshift-machine-api   infra-us-east-2a                       3         0                             22m
 openshift-machine-api   infra-us-east-2b                       0         0                             22m
 openshift-machine-api   infra-us-east-2c                       0         0                             22m
 openshift-machine-api   skordas-511b-fjt5x-worker-us-east-2a   0         40        40      40          3h40m
 openshift-machine-api   skordas-511b-fjt5x-worker-us-east-2b   0         40        40      40          3h40m
 openshift-machine-api   skordas-511b-fjt5x-worker-us-east-2c   0         40        40      40          3h40m
 openshift-machine-api   workload-us-east-2a                    0         1         1       1           22m

so running build to scale down to 3 nodes will set 3 nodes for infra machineset, and rest will be 0

[skordas]

Final machineset after scaling down:

 NAMESPACE               NAME                                   DESIRED   CURRENT   READY   AVAILABLE   AGE
 openshift-machine-api   infra-us-east-2a                       3         3                             36m
 openshift-machine-api   infra-us-east-2b                       0         0                             36m
 openshift-machine-api   infra-us-east-2c                       0         0                             36m
 openshift-machine-api   skordas-511b-fjt5x-worker-us-east-2a   0         0                             3h54m
 openshift-machine-api   skordas-511b-fjt5x-worker-us-east-2b   0         0                             3h54m
 openshift-machine-api   skordas-511b-fjt5x-worker-us-east-2c   0         0                             3h54m
 openshift-machine-api   workload-us-east-2a                    0         0                             36m