我有一个在外网运行的 kubernetes 集群，并在同一网络中的另一台机器上设置了 NFS 服务器。我能够通过 ssh 连接到集群中的任何节点并通过运行从服务器挂载，sudo mount -t nfs 10.17.10.190:/export/test /mnt但是每当我的测试 pod 尝试使用指向该服务器的 nfs 持久卷时，它就会失败并显示以下消息：
Events:
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
19s 19s 1 default-scheduler Normal Scheduled Successfully assigned nfs-web-58z83 to wal-vm-newt02
19s 3s 6 kubelet, wal-vm-newt02 Warning
FailedMount MountVolume.SetUp failed for volume "kubernetes.io/nfs/bad55e9c-7303-11e7-9c2f-005056b40350-test-nfs" (spec.Name: "test-nfs") pod "bad55e9c-7303-11e7-9c2f-005056b40350" (UID: "bad55e9c-7303-11e7-9c2f-005056b40350") with: mount failed: exit status 32
Mounting command: mount
Mounting arguments: 10.17.10.190:/exports/test /var/lib/kubelet/pods/bad55e9c-7303-11e7-9c2f-005056b40350/volumes/kubernetes.io~nfs/test-nfs nfs []
Output: …