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kubernetes - 挂载路径错误：不是目录：未知

问题描述

我正在 kubernetes 集群（版本 1.21.2）上使用 ceph-csi pv 和 pvc 进行测试。尝试为 dnsmasq pod 分配一个小 pv，以便能够在不重新启动 pod 的情况下更改 dnsmasq.conf。

apiVersion: v1
metadata:
  name: dnsmasq-pvc
  namespace: vt
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Mi
  storageClassName: ceph-rbd-sc
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: dnsmasq
  namespace: vt
  labels:
    app: dnsmasq
spec:
  serviceName: "dnsmasq"
  replicas: 1
  selector:
    matchLabels:
      app: dnsmasq
  template:
    metadata:
      labels:
        app: dnsmasq
    spec:
      hostname: dnsmasq
      containers:
      - name: dnsmasq
        image: jpillora/dnsmasq
        ports:
        - containerPort: 8080
        imagePullPolicy: IfNotPresent
        env:
        - name: HTTP_USER
          value: "user"
        - name: HTTP_PASS
          value: "password"
        volumeMounts:
        - mountPath: /etc/dnsmasq.conf
          name: dnsmasq-pvc
          subPath: dnsmasq.conf
      volumes:
      - name: dnsmasq-pvc
        persistentVolumeClaim:
          claimName: dnsmasq-pvc
      dnsPolicy: "None"
      dnsConfig:
        nameservers:
          - 8.8.8.8

应用 yaml 文件后，我收到以下错误：

Error: failed to create containerd task: OCI runtime create failed: container_linux.go:380: starting container process caused: process_linux.go:545: container init caused: rootfs_linux.go:76: mounting "/var/lib/kubelet/pods/48d9fac5-1603-416c-83b1-d57de22e1c81/volume-subpaths/pvc-d197a21c-107c-47a9-b334-fa4f97375b57/dnsmasq/0" to rootfs at "/etc/dnsmasq.conf" caused: mount through procfd: not a directory: unknown

我该如何解决这个问题？

标签： kubernetespersistent-volumesdnsmasqpersistent-volume-claims

解决方案

  • 正如@jonas 提到的将volumeMount.mountPath 值修改为目录
apiVersion: v1
metadata:
  name: dnsmasq-pvc
  namespace: vt
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Mi
  storageClassName: ceph-rbd-sc
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: dnsmasq
  namespace: vt
  labels:
    app: dnsmasq
spec:
  serviceName: "dnsmasq"
  replicas: 1
  selector:
    matchLabels:
      app: dnsmasq
  template:
    metadata:
      labels:
        app: dnsmasq
    spec:
      hostname: dnsmasq
      containers:
      - name: dnsmasq
        image: jpillora/dnsmasq
        ports:
        - containerPort: 8080
        imagePullPolicy: IfNotPresent
        env:
        - name: HTTP_USER
          value: "user"
        - name: HTTP_PASS
          value: "password"
        volumeMounts:
        - mountPath: /etc/
          name: dnsmasq-pvc
          subPath: dnsmasq.conf
      volumes:
      - name: dnsmasq-pvc
        persistentVolumeClaim:
          claimName: dnsmasq-pvc
      dnsPolicy: "None"
      dnsConfig:
        nameservers:
          - 8.8.8.8

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