[BUG]KB 1.0.1/kb-addon-minio 1.0.1: InstanceTemplate not supported for minio cluster

[gjmzj]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. install kubeblocks 1.0.1, kb-addon-minio 1.0.1
2. install custom minio cluster using InstanceTemplate

apiVersion: v1
kind: Namespace
metadata:
  name: minio

---
apiVersion: v1
kind: Secret
metadata:
  name: minio-cluster-custom-aksk
  namespace: minio
type: Opaque
immutable: true
stringData:
  password: sFdxxxxxxQ
  username: wx9xxxw9z

---
apiVersion: apps.kubeblocks.io/v1
kind: Cluster
metadata:
  name: minio-cluster-custom-instance
  namespace: minio
spec:
  terminationPolicy: DoNotTerminate
  componentSpecs:
    - componentDef: minio
      name: minio
      replicas: 4
      systemAccounts:
        - name: root
          secretRef:
            name: minio-cluster-custom-aksk
            namespace: minio
      env:
        - name: MINIO_BUCKETS
          value: "deap,test,data"
      resources:
        requests:
          cpu: "0.5"
          memory: "1Gi"
        limits:
          cpu: "1"
          memory: "2Gi"
      instances:
        - name: tpl1
          replicas: 1
          ordinals:
            ranges:
              - start: 101
                end: 200
          volumeClaimTemplates:
            - name: data
              spec:
                storageClassName: "lvm-data1"
                accessModes:
                  - ReadWriteOnce
                resources:
                  requests:
                    storage: 500Gi
        - name: tpl2
          replicas: 1
          ordinals:
            ranges:
              - start: 201
                end: 300
          volumeClaimTemplates:
            - name: data
              spec:
                storageClassName: "lvm-data3"
                accessModes:
                  - ReadWriteOnce
                resources:
                  requests:
                    storage: 500Gi
        - name: tpl3
          replicas: 1
          ordinals:
            ranges:
              - start: 301
                end: 400
          volumeClaimTemplates:
            - name: data
              spec:
                storageClassName: "lvm-data5"
                accessModes:
                  - ReadWriteOnce
                resources:
                  requests:
                    storage: 500Gi
        - name: tpl4
          replicas: 1
          ordinals:
            ranges:
              - start: 401
                end: 500
          volumeClaimTemplates:
            - name: data
              spec:
                storageClassName: "lvm-data7"
                accessModes:
                  - ReadWriteOnce
                resources:
                  requests:
                    storage: 500Gi

3. See error

 # kubectl get pod -n minio
NAME                                           READY   STATUS    RESTARTS   AGE
minio-cluster-custom-instance-minio-tpl1-101   2/2     Running   0          42m
minio-cluster-custom-instance-minio-tpl2-201   2/2     Running   0          42m
minio-cluster-custom-instance-minio-tpl3-301   2/2     Running   0          41m
minio-cluster-custom-instance-minio-tpl4-401   2/2     Running   0          41m
# kubectl logs -n minio minio-cluster-custom-instance-minio-tpl1-101
Error: Unable to resolve DNS for http://minio-cluster-custom-instance-minio-1.minio-cluster-custom-instance-minio-headless.minio.svc.cluster.local/data: lookup minio-cluster-custom-instance-minio-1.minio-cluster-custom-instance-minio-headless.minio.svc.cluster.local on 169.254.20.10:53: no such host (*fmt.wrapError)
       host="minio-cluster-custom-instance-minio-1.minio-cluster-custom-instance-minio-headless.minio.svc.cluster.local", elapsedTime="1 second elapsed"
      10: internal/logger/logonce.go:118:logger.(*logOnceType).logOnceIf()
       9: internal/logger/logonce.go:149:logger.LogOnceIf()
       8: cmd/logging.go:104:cmd.bootLogOnceIf()
       7: cmd/endpoint.go:877:cmd.PoolEndpointList.UpdateIsLocal()
       6: cmd/endpoint.go:1015:cmd.CreatePoolEndpoints()
       5: cmd/endpoint-ellipses.go:506:cmd.createServerEndpoints()
       4: cmd/server-main.go:396:cmd.serverHandleCmdArgs()
       3: cmd/server-main.go:781:cmd.serverMain.func2()
       2: cmd/server-main.go:561:cmd.bootstrapTrace()
       1: cmd/server-main.go:777:cmd.serverMain()

API: SYSTEM.bootstrap
Time: 12:31:06 UTC 12/15/2025
Error: Unable to resolve DNS for http://minio-cluster-custom-instance-minio-2.minio-cluster-custom-instance-minio-headless.minio.svc.cluster.local/data: lookup minio-cluster-custom-instance-minio-2.minio-cluster-custom-instance-minio-headless.minio.svc.cluster.local on 169.254.20.10:53: no such host (*fmt.wrapError)
       host="minio-cluster-custom-instance-minio-2.minio-cluster-custom-instance-minio-headless.minio.svc.cluster.local", elapsedTime="1 second elapsed"
      10: internal/logger/logonce.go:118:logger.(*logOnceType).logOnceIf()
       9: internal/logger/logonce.go:149:logger.LogOnceIf()
       8: cmd/logging.go:104:cmd.bootLogOnceIf()
       7: cmd/endpoint.go:877:cmd.PoolEndpointList.UpdateIsLocal()
       6: cmd/endpoint.go:1015:cmd.CreatePoolEndpoints()
       5: cmd/endpoint-ellipses.go:506:cmd.createServerEndpoints()
       4: cmd/server-main.go:396:cmd.serverHandleCmdArgs()
       3: cmd/server-main.go:781:cmd.serverMain.func2()
       2: cmd/server-main.go:561:cmd.bootstrapTrace()
       1: cmd/server-main.go:777:cmd.serverMain()

API: SYSTEM.bootstrap
Time: 12:31:06 UTC 12/15/2025
Error: Unable to resolve DNS for http://minio-cluster-custom-instance-minio-3.minio-cluster-custom-instance-minio-headless.minio.svc.cluster.local/data: lookup minio-cluster-custom-instance-minio-3.minio-cluster-custom-instance-minio-headless.minio.svc.cluster.local on 169.254.20.10:53: no such host (*fmt.wrapError)
       host="minio-cluster-custom-instance-minio-3.minio-cluster-custom-instance-minio-headless.minio.svc.cluster.local", elapsedTime="1 second elapsed"
      10: internal/logger/logonce.go:118:logger.(*logOnceType).logOnceIf()
       9: internal/logger/logonce.go:149:logger.LogOnceIf()
       8: cmd/logging.go:104:cmd.bootLogOnceIf()
       7: cmd/endpoint.go:877:cmd.PoolEndpointList.UpdateIsLocal()
       6: cmd/endpoint.go:1015:cmd.CreatePoolEndpoints()
       5: cmd/endpoint-ellipses.go:506:cmd.createServerEndpoints()
       4: cmd/server-main.go:396:cmd.serverHandleCmdArgs()
       3: cmd/server-main.go:781:cmd.serverMain.func2()
       2: cmd/server-main.go:561:cmd.bootstrapTrace()
       1: cmd/server-main.go:777:cmd.serverMain()

Expected behavior
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[gjmzj]

It looks like it got the pod name wrong.

[shanshanying]

Hi @gjmzj

Thanks for reporting the bug. we will check if there is anything we can do for minio. and besides we will support 'falttern' those templates in next KB release (KB 1.1) for such cases.

For the moment, you can set a ordinal for different templates to make sure each template generete pods with ordinals that never overlaps with each oterh.

[github-actions]

This issue has been marked as stale because it has been open for 30 days with no activity