namePrefix ignores storageClassName reference in volumeClaimTemplates

[trajakovic]

Adding a namePrefix or nameSuffix ignores storageClassName inside StatefulSet spec.volumeClaimTemplates.

Version

Version: {KustomizeVersion:3.0.2 GitCommit:aa2313c2825a7712b12309c1cd7798f371a0bb18 BuildDate:2019-07-12T20:43:56Z GoOs:darwin GoArch:amd64}

Input

base/demo.yaml

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: storage
  labels:
    k8s-addon: storage-aws.addons.k8s.io
provisioner: kubernetes.io/aws-ebs
reclaimPolicy: Retain
allowVolumeExpansion: true
parameters:
  type: gp2
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: demo
  namespace: demo
spec:
  selector:
    matchLabels:
      app: demo
  replicas: 3
  updateStrategy:
    type: RollingUpdate
  podManagementPolicy: Parallel
  template:
    metadata:
      labels:
        app: demo
      annotations:
    spec:
      containers:
        - name: demo
          image: alpine:3.9
          volumeMounts:
            - name: data
              mountPath: /data
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes: [ "ReadWriteOnce" ]
        storageClassName: storage
        resources:
          requests:
            storage: 10Gi

kustomization.yaml

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
bases:
  - ./base/demo.yaml
namespace: demo1
namePrefix: prefix-
nameSuffix: -suffix

Result

allowVolumeExpansion: true
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  labels:
    k8s-addon: storage-aws.addons.k8s.io
  name: prefix-storage-suffix
parameters:
  type: gp2
provisioner: kubernetes.io/aws-ebs
reclaimPolicy: Retain
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: prefix-demo-suffix
  namespace: demo1
spec:
  podManagementPolicy: Parallel
  replicas: 3
  selector:
    matchLabels:
      app: demo
  template:
    metadata:
      annotations: null
      labels:
        app: demo
    spec:
      containers:
      - image: alpine:3.9
        name: demo
        volumeMounts:
        - mountPath: /data
          name: data
  updateStrategy:
    type: RollingUpdate
  volumeClaimTemplates:
  - metadata:
      name: data
    spec:
      accessModes:
      - ReadWriteOnce
      resources:
        requests:
          storage: 10Gi
      storageClassName: storage

Expectation

storageClassName in spec.volumeClaimTemplates with correct prefix- -suffix name.

[jbrette]

@trajakovic It looks like @yujunz fixed the issue last month. We did reproduce your environment here and the bug seems to be fixed.

[trajakovic]

@jbrette ok, will try it again with feedback. and thx guys for excellent work

[thiagoalvessilva]

Is there any workaround for this? I am using kubectl 1.1.14

[jbrette]

@thiagoalvessilva Just download kustomize 3.1.0here and run:

kustomize build <myapp> | kubectl apply -f -

instead of

kubectl apply -k <myapp>

[trajakovic]

@jbrette I can confirm that latest released version Version: {KustomizeVersion:3.2.0 GitCommit:a3103f1e62ddb5b696daa3fd359bb6f2e8333b49 BuildDate:2019-09-18T16:26:36Z GoOs:darwin GoArch:amd64} doesn't have this issue anymore.

Thank you once again