如何在Google容器引擎上創建一個kubernetes NFS卷

我試圖在Google容器引擎（GKE）上創建一個kubernetes NFS卷並讓它用於部署。如何在Google容器引擎上創建一個kubernetes NFS卷

我在幾個步驟做這在本GitHub的倉庫kubernetes-nfs-volume-on-gke顯示它：

創建GKE集羣和GCE永久磁盤
配置上下文的kubectl應對GKE集羣
創建PersistentVolume（PV）和PersistentVolumeClaim（PVC）
創建NFS服務器
爲NFS服務器創建服務以便公開它（該服務的IP地址用於創建NFS PV和NFS PVC）
創建NFS卷
創建一個用於檢查NFS卷的busybox的部署是可訪問的。

fellowing這些步驟之後，這是所獲得的誤差：

$ kubectl describe pods nfs-busybox-2762569073-lhb5p 
Name:  nfs-busybox-2762569073-lhb5p 
Namespace: default 
Node:  gke-mappedinn-cluster-default-pool-f94cb0d4-fmfb/10.240.0.3 
Start Time: Wed, 12 Apr 2017 04:12:20 +0400 
Labels:  name=nfs-busybox 
     pod-template-hash=2762569073 
Annotations: kubernetes.io/created-by={"kind":"SerializedReference","apiVersion":"v1","reference":{"kind":"ReplicaSet","namespace":"default","name":"nfs-busybox-2762569073","uid":"b1e523ae-1f14-11e7-a084-42010a8e0... 
     kubernetes.io/limit-ranger=LimitRanger plugin set: cpu request for container busybox 
Status:  Pending 
IP:  
Controllers: ReplicaSet/nfs-busybox-2762569073 
Containers: 
    busybox: 
    Container ID: 
    Image:  busybox 
    Image ID:  
    Port:  
    Command: 
     sh 
     -c 
     while true; do date > /mnt/index.html; hostname >> /mnt/index.html; sleep $(($RANDOM % 5 + 5)); done 
    State:  Waiting 
     Reason:  ContainerCreating 
    Ready:  False 
    Restart Count: 0 
    Requests: 
     cpu:  100m 
    Environment: <none> 
    Mounts: 
     /mnt from my-pvc-nfs (rw) 
     /var/run/secrets/kubernetes.io/serviceaccount from default-token-20n4b (ro) 
Conditions: 
    Type  Status 
    Initialized True 
    Ready  False 
    PodScheduled True 
Volumes: 
    my-pvc-nfs: 
    Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace) 
    ClaimName: nfs 
    ReadOnly: false 
    default-token-20n4b: 
    Type: Secret (a volume populated by a Secret) 
    SecretName: default-token-20n4b 
    Optional: false 
QoS Class: Burstable 
Node-Selectors: <none> 
Tolerations: <none> 
Events: 
    FirstSeen LastSeen Count From        SubObjectPath Type  Reason  Message 
    --------- -------- ----- ----        ------------- -------- ------  ------- 
    5m  5m  1 default-scheduler        Normal  Scheduled Successfully assigned nfs-busybox-2762569073-lhb5p to gke-mappedinn-cluster-default-pool-f94cb0d4-fmfb 
    3m  48s  2 kubelet, gke-mappedinn-cluster-default-pool-f94cb0d4-fmfb   Warning  FailedMount Unable to mount volumes for pod "nfs-busybox-2762569073-lhb5p_default(b1e7c901-1f14-11e7-a084-42010a8e0116)": timeout expired waiting for volumes to attach/mount for pod "default"/"nfs-busybox-2762569073-lhb5p". list of unattached/unmounted volumes=[my-pvc-nfs] 
    3m  48s  2 kubelet, gke-mappedinn-cluster-default-pool-f94cb0d4-fmfb   Warning  FailedSync Error syncing pod, skipping: timeout expired waiting for volumes to attach/mount for pod "default"/"nfs-busybox-2762569073-lhb5p". list of unattached/unmounted volumes=[my-pvc-nfs] 
    37s  37s  1 kubelet, gke-mappedinn-cluster-default-pool-f94cb0d4-fmfb   Warning  FailedMount MountVolume.SetUp failed for volume "kubernetes.io/nfs/b1e7c901-1f14-11e7-a084-42010a8e0116-nfs" (spec.Name: "nfs") pod "b1e7c901-1f14-11e7-a084-42010a8e0116" (UID: "b1e7c901-1f14-11e7-a084-42010a8e0116") with: mount failed: exit status 32 
Mounting command: /home/kubernetes/bin/mounter 
Mounting arguments: 10.247.250.208:/exports /var/lib/kubelet/pods/b1e7c901-1f14-11e7-a084-42010a8e0116/volumes/kubernetes.io~nfs/nfs nfs [] 
Output: Running mount using a rkt fly container 
run: group "rkt" not found, will use default gid when rendering images

在kubernetes儀表盤，誤差如下：

無法裝入用於莢「NFS-busybox的卷-2762569073-lhb5p_default（b1e7c901-1f14-11e7-a084-42010a8e0116）「：超時過期等待卷掛載/掛載」默認「/」nfs-busybox-2762569073-lhb5p「。超時過期等待卷連接/掛載吊艙「默認」/ 「NFS-的busybox-2762569073-lhb5p」：未婚/卸載量= [我-PVC-NFS]

錯誤同步莢，跳躍列表。未安裝/未安裝卷的列表= [my-pvc-nfs]

我錯過了什麼嗎？

感謝，

來源

2017-04-12 Amine Jallouli

我打算在GKE教程上寫一個NFS。我不知道答案馬上，但謝謝你提出這個問題，因爲它驗證了這樣一個教程的需要。如果你想保持聯繫，我的電子郵件是ahmetb✳︎google.com。我可以在幾個星期內回答這個問題。 –

感謝您的建議......我仍在努力......如果我找到解決方案，我會在這裏發佈它......如果您想製作PR [kubernetes-nfs-volume-on-gke]（https ：//github.com/mappedinn/kubernetes-nfs-volume-on-gke）它會很棒！ –

這comment在issue上kubernetes似乎來解決這個GKE NFS問題。

Qutoing這一評論：

Edit examples/volumes/nfs/nfs-pv.yaml change the last line to path: "/" .

Edit examples/volumes/nfs/nfs-server-rc.yaml change the image to the one that enabled NFSv4 image: gcr.io/google_containers/volume-nfs:0.8

同樣存在該跟蹤here和here等問題。

來源

2017-04-20 06:37:34 surajd

如何在Google容器引擎上創建一個kubernetes NFS卷

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