我一直在深入研究Kubernetes的Rook+Ceph,试图让它在Google Kubernetes引擎下工作,但遇到了障碍。
根据文档,我已经运行了以下命令,并验证了每个命令都有预期的效果:
kubectl create -f common.yaml
kubectl create -f operator.yaml
kubectl create -f cluster.yaml
kubectl create -f filesystem.yaml除了operator.yaml之外,所有yaml文件都默认为provided by Rook,其中我按照the GKE docs添加了以下环境变量
- name: FLEXVOLUME_DIR_PATH
value: "/home/kubernetes/flexvolume"然而,我不确定从这里到哪里去。他们的文档有一个creating a registry的示例文件,它导致了一个兔子洞的指令,这似乎与我试图实现的目标无关。
从本质上讲,我希望能够将Ceph共享文件存储挂载为常规ol‘容器镜像中的卷。我已经尝试了以下yaml,但没有成功:
apiVersion: v1
kind: Pod
metadata:
name: ubuntu
namespace: default
spec:
containers:
- name: ubuntu
image: ubuntu:bionic
command:
- sleep
- "3600"
imagePullPolicy: IfNotPresent
volumeMounts:
- name: image-store
mountPath: /mnt/shared
volumes:
- name: image-store
flexVolume:
driver: ceph.rook.io/rook
fsType: ceph
options:
fsName: myfs
clusterNamespace: rook-ceph
restartPolicy: Always根据我有限的知识,我不明白为什么这不能工作,但我在执行kubectl describe pods ubuntu时得到了以下输出
Mounting command: systemd-run
Mounting arguments: --description=Kubernetes transient mount for /var/lib/kubelet/pods/10ee80d1-8873-11e9-8f45-42010a8a01d8/volumes/ceph.rook.io~rook/image-store --scope -- mount -t ceph -o name=admin,secret=AQDAM/lcQFKHARAAh/O27Wl+iRKRzREsMML+4g==,mds_namespace=myfs 10.8.3.134:6789,10.8.13.226:6789,10.8.5.39:6789:/ /var/lib/kubelet/pods/10ee80d1-8873-11e9-8f45-42010a8a01d8/volumes/ceph.rook.io~rook/image-store
Output: Running scope as unit: run-reb61186d1ff64e6e846a200580aa5395.scope
mount: /var/lib/kubelet/pods/10ee80d1-8873-11e9-8f45-42010a8a01d8/volumes/ceph.rook.io~rook/image-store: special device 10.8.3.134:6789,10.8.13.226:6789,10.8.5.39:6789:/ does not exist.
Warning FailedMount 51s (x2 over 2m53s) kubelet, gke-kubey-cluster-default-pool-6856b374-nb0c (combined from similar events): MountVolume.SetUp failed for volume "image-store" : mount command failed, status: Failure, reason: failed to mount filesystem myfs to /var/lib/kubelet/pods/10ee80d1-8873-11e9-8f45-42010a8a01d8/volumes/ceph.rook.io~rook/image-store with monitor 10.8.3.134:6789,10.8.13.226:6789,10.8.5.39:6789:/ and options [name=admin secret=AQDAM/lcQFKHARAAh/O27Wl+iRKRzREsMML+4g== mds_namespace=myfs]: mount failed: exit status 32有没有在野外某处如何实现这样的事情的例子?
发布于 2019-06-24 17:57:13
https://stackoverflow.com/questions/56481805
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