Docker kubernetes与ceph rbd

我想用ceph rbd和kubernetes

我有一个kubernetes 1.9.2和ceph 12.2.5集群，在我的k8s节点上安装了ceph common pag

[root@docker09 manifest]# ceph auth get-key client.admin|base64
QVFEcmxmcGFmZXlZQ2hBQVFJWkExR0pXcS9RcXV4QmgvV3ZFWkE9PQ==
[root@docker09 manifest]# cat ceph-secret.yaml
apiVersion: v1
kind: Secret
metadata:
  name: ceph-secret
data:
  key: QVFEcmxmcGFmZXlZQ2hBQVFJWkExR0pXcS9RcXV4QmgvV3ZFWkE9PQ==

kubectl create -f ceph-secret.yaml 

然后：

我用这种pvc制作了一个豆荚

[root@docker09 manifest]#  cat ceph-pod.yaml
apiVersion: v1
kind: Pod
metadata:
  name: ceph-pod2
spec:
  containers:
  - name: ceph-busybox
    image: busybox
    command: ["sleep", "60000"]
    volumeMounts:
    - name: ceph-vol1
      mountPath: /usr/share/busybox
      readOnly: false
  volumes:
  - name: ceph-vol1
    persistentVolumeClaim:
      claimName: ceph-claim

[root@docker09 manifest]# kubectl get pod ceph-pod2 -o wide
NAME        READY     STATUS              RESTARTS   AGE       IP        NODE
ceph-pod2   0/1       ContainerCreating   0          14m       <none>    docker10

---

我不知道为什么会这样，需要你的帮助。。。致以最诚挚的问候。

rbd-v（包括在ceph common中）应返回与您的群集相同的版本。您还应该查看kubelet的消息。

这里没有必要重新发明轮子。已经有一个名为ROOK的项目，它在kubernetes上部署了ceph，而且运行起来非常简单

[root@docker09 manifest]#  cat ceph-pod.yaml
apiVersion: v1
kind: Pod
metadata:
  name: ceph-pod2
spec:
  containers:
  - name: ceph-busybox
    image: busybox
    command: ["sleep", "60000"]
    volumeMounts:
    - name: ceph-vol1
      mountPath: /usr/share/busybox
      readOnly: false
  volumes:
  - name: ceph-vol1
    persistentVolumeClaim:
      claimName: ceph-claim

[root@docker09 manifest]# kubectl get pod ceph-pod2 -o wide
NAME        READY     STATUS              RESTARTS   AGE       IP        NODE
ceph-pod2   0/1       ContainerCreating   0          14m       <none>    docker10

[root@docker09 manifest]# kubectl describe  pod ceph-pod2
Events:
  Type     Reason                 Age               From               Message
  ----     ------                 ----              ----               -------
  Normal   Scheduled              15m               default-scheduler  Successfully assigned ceph-pod2 to docker10
  Normal   SuccessfulMountVolume  15m               kubelet, docker10  MountVolume.SetUp succeeded for volume "default-token-85rc7"
  Warning  FailedMount            1m (x6 over 12m)  kubelet, docker10  Unable to mount volumes for pod "ceph-pod2_default(56af9345-7073-11e8-aeb6-1c98ec29cbec)": timeout expired waiting for volumes to attach/mount for pod "default"/"ceph-pod2". list of unattached/unmounted volumes=[ceph-vol1]