Istio 与 NFS 服务器通信

Question

我在 GKE 集群上发现 NFS 服务器。但是，如果 NFS 服务器与 sidecar istio 代理容器一起部署，我在连接到磁盘时会遇到问题。 日志中只有：

Mount system call failed

没有 sidecar，一切都运行良好，我可以轻松地使用 NFS 挂载磁盘。有人知道如何配置 istio 以允许内部访问 nfs-server 的服务吗？ 下面是我的配置：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nfs-server
spec:
  replicas: 1
  selector:
    matchLabels:
      role: nfs-server
  template:
    metadata:
      labels:
        role: nfs-server
      containers:
      - name: nfs-server
        image: gcr.io/google_containers/volume-nfs:0.8
        ports:
          - name: nfs
            containerPort: 2049
          - name: mountd
            containerPort: 20048
          - name: rpcbind
            containerPort: 111
        securityContext:
          privileged: true
        volumeMounts:
          - mountPath: /exports
            name: nfs-pvc
      volumes:
        - name: nfs-pvc
          gcePersistentDisk:
            pdName: storage-nfs
            fsType: ext4
---
apiVersion: v1
kind: Service
metadata:
  name: nfs-server
spec:
  ports:
    - name: nfs
      port: 2049
    - name: mountd
      port: 20048
    - name: rpcbind
      port: 111
  selector:
    role: nfs-server
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: nfs-pv-1
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteMany
  nfs:
    server: nfs-server.default.svc.cluster.local
    path: "/"

---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: nfs-pvc-1
spec:
  accessModes:
    - ReadWriteMany
  storageClassName: ""
  resources:
    requests:
      storage: 1Gi
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nfs-pv-demo-depl
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nfs-pv-demo
  template:
    metadata:
      name: nfs-pv-pod
      labels:
        app: nfs-pv-demo
    spec:
      containers:
      - image: busybox
        name: nfs-pv-multi
        imagePullPolicy: Always
        name: busybox
        volumeMounts:
          # name should match from volumes section
          - name: nfs-volume-1
            mountPath: "/disk1"
      volumes:
      - name: nfs-volume-1
        persistentVolumeClaim:
          claimName: nfs-pvc

Answer 1

尝试通过向 NFS 服务器部署添加

excludeInboundPorts

注释（Alpha 功能状态）来绕过 NFS 流量的 Istio 代理：

template:
    metadata:
      labels:
        role: nfs-server
      annotations:
        traffic.sidecar.istio.io/excludeInboundPorts: "111,2049,20048"