尝试将 Kubernetes 卷挂载到 ceph rbd 存储但出现 FailedMount 错误

Question

将 Kubernetes 卷挂载到 ceph 存储 rbd 时显示 FailedMount 错误

无法附加或挂载卷：未挂载的卷=[数据]，未附加的卷=[数据 kube-api-access-mxlkm]：等待条件超时。

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: ceph-claim-dynamic
spec:
  accessModes:  
    - ReadWriteOnce
  storageClassName: dynamic
  resources:
    requests:
      storage: 2Gi

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: dynamic
provisioner:  kubernetes.io/rbd
parameters:
  monitors: 192.168.122.82:6789,192.168.122.238:6789,192.168.122.124:6789 
  adminId: admin 
  adminSecretName: ceph-admin-secret 
  adminSecretNamespace: kube-system 
  pool: k8s 
  userId: kube  
  userSecretName: ceph-user-secret
  imageFormat: "2"


apiVersion: v1
kind: Pod
metadata:
  name: ceph-pod1
spec:
  containers:
  - name: ceph-busybox
    image: busybox
    command: ["sleep", "60000"]
    volumeMounts:
    - name: data
      mountPath: /data
      readOnly: false
  volumes:
  - name: data
    persistentVolumeClaim:
      claimName: ceph-claim-dynamic
Events:
  Type     Reason       Age                 From               Message
  ----     ------       ----                ----               -------
  Normal   Scheduled    38m                 default-scheduler  Successfully assigned default/ceph-pod1 to worker1
  Warning  FailedMount  14m                 kubelet            Unable to attach or mount volumes: unmounted volumes=[data], unattached volumes=[kube-api-access-mxlkm data]: timed out waiting for the condition
  Warning  FailedMount  28s (x16 over 36m)  kubelet            Unable to attach or mount volumes: unmounted volumes=[data], unattached volumes=[data kube-api-access-mxlkm]: timed out waiting for the condition

检查下面的附加图像

在此处输入图像描述

Answer 1

对 kube 了解不多，但您可以部署一个简单的 kube pod，然后在其中安装一个 RBD，并排除您是否有连接问题或 kube 配置问题。

Map rbd： rbd map foopool/rbd_volume --id admin --keyring /etc/ceph/ceph.client.admin.keyring

看看它是否有效。 祝你好运！