得到：糟糕的选择；尝试在 K8 容器中挂载 azure 文件共享时，用于多个文件系统例如 nfs、cifs

问题描述

我创建了一个 Azure 文件共享，并且能够在我的装有 Windows 10 的笔记本电脑中使用地图网络驱动器连接到它。我创建了一个 hello-world spring boot 应用程序，其中包含用于 azure 文件共享的卷挂载配置并尝试部署docker-desktop 中的 Kubernetes。但是我的 pod 没有启动 -

hello-world-9d7479c4d-26mv2   0/1     ContainerCreating   0          15s

这是我在描述 POD 时可以在事件中看到的错误 -

Events:
  Type     Reason       Age              From                     Message
  ----     ------       ----             ----                     -------
  normal   Scheduled    9h                                        Successfully assigned default/hello-world-9d7479c4d-26mv2 to docker-desktop
  Warning  FailedMount  9h (x7 over 9h)  kubelet,docker-desktop  MountVolume.SetUp Failed for volume "fileshare-pv" : mount Failed: exit status 32
Mounting command: mount
Mounting arguments: -t cifs -o file_mode=0777,dir_mode=0777,vers=3.0,<masked> //mystorage.file.core.windows.net/myshare /var/lib/kubelet/pods/425012d1-13ee-4c40-bf40-d2f7ccfe5954/volumes/kubernetes.io~azure-file/fileshare-pv
Output: mount: /var/lib/kubelet/pods/425012d1-13ee-4c40-bf40-d2f7ccfe5954/volumes/kubernetes.io~azure-file/fileshare-pv: bad option; for several filesystems (e.g. nfs,cifs) you might need a /sbin/mount.<type> helper program.

然后我更新了我的 Dockerfile 以安装 cifs-utils -

FROM ubuntu:16.04
# Install Java
RUN apt-get update && \
    apt-get install -y openjdk-8-jdk && \
    apt-get install -y ant && \
    apt-get install -y cifs-utils && \
    apt-get clean;

ENV PORT 8080
EXPOSE 8080
copY target/*.jar /opt/app.jar
workdir /opt
CMD ["java","-jar","app.jar"]

仍然没有出现那个错误。我用谷歌搜索了很多解决方案，但没有运气。在 docker-desktop [windows machine] 中使用 azure 文件与 kubernates 容器共享有什么限制吗？

这是我的 K8 配置 -

secret.yaml

apiVersion: v1
kind: Secret
Metadata:
  name: storage-secret
  namespace: default
type: Opaque
data:
  azurestorageaccountname: BASE64-encoded-account-name
  azurestorageaccountkey: BASE64-encoded-account-key

pv.yaml

apiVersion: v1
kind: PersistentVolume
Metadata:
  name: fileshare-pv
  labels:
    usage: fileshare-pv
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteMany
  persistentVolumeReclaimPolicy: Retain
  azureFile:
    secretName: storage-secret
    shareName: myshare
    readOnly: false

pvc.yaml

kind: PersistentVolumeClaim
apiVersion: v1
Metadata:
  name: fileshare-pvc
  namespace: default
  # Set this annotation to NOT let Kubernetes automatically create
  # a persistent volume for this volume claim.
  annotations:
    volume.beta.kubernetes.io/storage-class: ""
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 1Gi
  selector:
    # To make sure we match the claim with the exact volume,match the label
    matchLabels:
      usage: fileshare-pv

deployment.yaml

apiVersion: apps/v1
kind: Deployment
Metadata:
  name: hello-world
  namespace: default
  labels:
    app: hello-world
spec:
  replicas: 1
  selector:
    matchLabels:
      app: hello-world
  template:
    Metadata:
      labels:
        app: hello-world
    spec:
      containers:
        - name: hello-world-pod
          image: 'hello-world-k8:1.0'
          volumeMounts:
          - name: azure
            mountPath: /azureshare
          ports:
            - containerPort: 8080
      volumes:
      - name: azure
        persistentVolumeClaim:
          claimName: fileshare-pvc      
---
apiVersion: v1
kind: Service
Metadata:
  name: hello-world-service
  namespace: default
spec:
  selector:
    app: hello-world
  ports:
  - name: http
    protocol: TCP
    port: 8080
    targetPort: 8080
  type: LoadBalancer

解决方法

您可能需要安装一个知道如何挂载该文件系统的软件包。对于 NFS，这可能是 Debian/Ubuntu 的 nfs-common。