[BUG] workloadspread 调度的不对

[13567436138]

What happened:
cloneset-nginx.yaml

kubectl apply -f cloneset-nginx.yaml -n kruise

apiVersion: apps.kruise.io/v1alpha1
kind: CloneSet
metadata:
  labels:
    app: nginx
  name: nginx
spec:
  replicas: 5
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:alpine

wls/wls-subsets-preferredNodeSelectorTerms-preference-matchFields.yaml

apiVersion: apps.kruise.io/v1alpha1
kind: WorkloadSpread
metadata:
  name: wls
spec:
  targetRef:
    apiVersion: apps.kruise.io/v1alpha1
    kind: CloneSet
    name: nginx
  subsets:
  - name: subset-a 
    maxReplicas: 2
    requiredNodeSelectorTerm:
      matchExpressions:
      - key: topology.kubernetes.io/zone
        operator: In
        values:
        - z3
    preferredNodeSelectorTerms:
    - preference:
        matchFields:
        - key: metadata.name
          operator: In
          values: 
          - 192.168.229.128
      weight: 100
  - name: subset-b
    requiredNodeSelectorTerm:
      matchExpressions:
      - key: topology.kubernetes.io/zone
        operator: In
        values:
        - z2

kubectl label node 192.168.229.128 topology.kubernetes.io/zone=z3 --overwrite
kubectl label node 192.168.229.129 topology.kubernetes.io/zone=z3 --overwrite
kubectl label node 192.168.229.130 topology.kubernetes.io/zone=z2 --overwrite
kubectl label node 192.168.229.128 topology.istio.io/subzone=sz01 --overwrite
kubectl label node 192.168.229.129 topology.istio.io/subzone=sz02 --overwrite
kubectl label node 192.168.229.130 topology.istio.io/subzone=sz03 --overwrite

kubectl apply -f wls-subsets-preferredNodeSelectorTerms-preference-matchFields.yaml -n kruise
 
kubectl kruise rollout restart cloneset nginx -n kruise

C[root@node01 wls]# kubectl get pod -n kruise -owide  -w
NAME                                      READY   STATUS    RESTARTS   AGE     IP             NODE              NOMINATED NODE   READINESS GATES
nfs-client-provisioner-69557bfdb8-hzplg   0/1     Unknown   0          99d     <none>         192.168.229.128   <none>           <none>
nginx-48h42                               1/1     Running   0          3m42s   172.20.2.27    192.168.229.130   <none>           2/2
nginx-8hkmx                               1/1     Running   0          2m54s   172.20.2.29    192.168.229.130   <none>           2/2
nginx-9wn2q                               1/1     Running   0          3m43s   172.20.2.26    192.168.229.130   <none>           2/2
nginx-xskqc                               1/1     Running   0          3m10s   172.20.0.131   192.168.229.128   <none>           2/2
nginx-zqs5f                               1/1     Running   0          3m26s   172.20.2.28    192.168.229.130   <none>           2/2

128,129只有一个，不是max为2个么

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?:

Environment:

• Kruise version:
• Kubernetes version (use kubectl version):
• Install details (e.g. helm install args):
• Others:

[veophi]

@13567436138 Please ensure that you have enabled the WorkloadSpread feature-gate when installing kruise.

[veophi]

Maybe, your problem is similar with #1194.

This problem will be fixed after #1197 is merged.