挂载配置映射为pod中的卷，但挂载为空

Question

我试图将ConfigMap挂载到Pod中的文件目录。该目录正在显示，但其中没有文件。这是我申请kubectl apply -f spec.yaml的spec.yaml：

apiVersion: v1
kind: ConfigMap
metadata:
  name: config-map-1
data:
  key-1: Wow I am such a config
---
apiVersion: v1
kind: Pod
metadata:
  name: file-printer
spec:
  volumes:
    - name: config-volume
      configMap:
        name: config-map-1
  containers:
    - name: file-printer
      image: gcr.io/google_containers/busybox
      volumeMounts:
        - name: config-volume
          mountPath: /config-map-file
      command: ["ls",  "/", "/config-map-file"]
  restartPolicy: Never

我正在运行ls / /config-map-file所以我可以看到正在创建目录，但它没有填充：

bash-3.2$ kubectl logs file-printer
/:
bin
config-map-file
dev
[...snip...]
usr
var

/config-map-file:
bash-3.2$ 

我希望/config-map-file有一个名为key-1的文件，但它是空的：（

这是kubectl describe pod file-printer的输出：

bash-3.2$ kubectl describe pod file-printer
Name:       file-printer
Namespace:  default
Node:       127.0.0.1/127.0.0.1
Start Time: Mon, 04 Apr 2016 20:28:33 -0500
Labels:     <none>
Status:     Succeeded
IP:     172.17.0.2
Controllers:    <none>
Containers:
  file-printer:
    Container ID:   docker://5d08d31a8b06665ce50ba1147df8473a5997406813edff1fa2126cb48464a979
    Image:      gcr.io/google_containers/busybox
    Image ID:       docker://sha256:e7d168d7db455c45f4d0315d89dbd18806df4784f803c3cc99f8a2e250585b5b
    Port:       
    Command:
      ls
      /
      /config-map-file
    QoS Tier:
      cpu:      BestEffort
      memory:       BestEffort
    State:      Terminated
      Reason:       Completed
      Exit Code:    0
      Started:      Mon, 04 Apr 2016 20:28:36 -0500
      Finished:     Mon, 04 Apr 2016 20:28:36 -0500
    Ready:      False
    Restart Count:  0
    Environment Variables:
Conditions:
  Type      Status
  Ready     False 
Volumes:
  config-volume:
    Type:   ConfigMap (a volume populated by a ConfigMap)
    Name:   config-map-1
  default-token-e5g2d:
    Type:   Secret (a volume populated by a Secret)
    SecretName: default-token-e5g2d
Events:
  FirstSeen LastSeen    Count   From            SubobjectPath   Type        Reason      Message
  --------- --------    -----   ----            -------------   --------    ------      -------
  3s        3s      1   {default-scheduler }            Normal      Scheduled   Successfully assigned file-printer to 127.0.0.1
  2s        2s      1   {kubelet 127.0.0.1}         Warning     FailedSync  Error syncing pod, skipping: failed to "StartContainer" for "POD" with RunContainerError: "addNDotsOption: ResolvConfPath \"/mnt/sda1/var/lib/docker/containers/9472967c2cb9f471067e87560f061647afb9b353c6548f3b64cc06c034e5fe1f/resolv.conf\" does not exist"

  1s    1s  1   {kubelet 127.0.0.1} spec.containers{file-printer}   Normal  Pulling     pulling image "gcr.io/google_containers/busybox"
  0s    0s  1   {kubelet 127.0.0.1} spec.containers{file-printer}   Normal  Pulled      Successfully pulled image "gcr.io/google_containers/busybox"
  0s    0s  1   {kubelet 127.0.0.1} spec.containers{file-printer}   Normal  Created     Created container with docker id 5d08d31a8b06
  0s    0s  1   {kubelet 127.0.0.1} spec.containers{file-printer}   Normal  Started     Started container with docker id 5d08d31a8b06
  0s    0s  1   {kubelet 127.0.0.1}                 Warning FailedSync  Error syncing pod, skipping: failed to "StartContainer" for "file-printer" with RunContainerError: "failed to apply oom-score-adj to container \"exceeded maxTries, some processes might not have desired OOM score\"- /k8s_file-printer.903c39c6_file-printer_default_b64f103c-facd-11e5-b027-7eac684371ee_aa7b4c91"

我错过了什么？客户＆amp;服务器都运行1.2.0。