[Kubernetes]Dynamic provisioning failure in Kubernetes

Problem

Dynamic provisioning시 provisioner pod에서 아래와 같은 에러 메시지와 함께 PVC가 pending 상태가 된다.

“unexpected error getting claim reference: selfLink was empty, can't make reference”

k logs nfs-pod-provisioner-5948549f8c-46h4h

I0330 01:31:27.061484       1 controller.go:987] provision "default/test-dynamic-nfs-pvc" class "joins-nfs-storageclass": started
E0330 01:31:27.068286       1 controller.go:1004] provision "default/test-dynamic-nfs-pvc" class "joins-nfs-storageclass": unexpected error getting claim reference: selfLink was empty, can't make reference

---

Solution

kube-apiserver에 아래 옵션을 추가 하고 kube-apiserver pod를 재시작 한다.

- --feature-gates=RemoveSelfLink=false

추가

/etc/kubernetes/manifests/kube-apiserver.yaml

spec:
  containers:
  - command:
    - kube-apiserver
    - --feature-gates=RemoveSelfLink=false
    - --advertise-address=10.50.107.21

---

Using Kubernetes v1.20.0, getting "unexpected error getting claim reference: selfLink was empty, can't make reference" · Issue #25 · kubernetes-sigs/nfs-subdir-external-provisioner