我关注 ví dụ在kubernetes中使用rbd，但不能成功。谁能帮我!!错误 :

Nov 09 17:58:03 core-1-97 kubelet[1254]: E1109 17:58:03.289702 1254 volumes.go:114] Could not create volume builder for pod 5df3610e-86c8-11e5-bc34-002590fdf95c: can't use volume plugins for (volume.Spec){Name:(string)rbdpd VolumeSource:(api.VolumeSource){HostPath:(*api.HostPathVolumeSource) EmptyDir:(*api.EmptyDirVolumeSource) GCEPersistentDisk:(*api.GCEPersistentDiskVolumeSource) AWSElasticBlockStore:(*api.AWSElasticBlockStoreVolumeSource) GitRepo:(*api.GitRepoVolumeSource) Secret:(*api.SecretVolumeSource) NFS:(*api.NFSVolumeSource) ISCSI:(*api.ISCSIVolumeSource) Glusterfs:(*api.GlusterfsVolumeSource) PersistentVolumeClaim:(*api.PersistentVolumeClaimVolumeSource) RBD:(*api.RBDVolumeSource){CephMonitors:([]string)[10.14.1.33:6789 10.14.1.35:6789 10.14.1.36:6789] RBDImage:(string)foo FSType:(string)ext4 RBDPool:(string)rbd RadosUser:(string)admin Keyring:(string) SecretRef:(*api.LocalObjectReference){Name:(string)ceph-secret} ReadOnly:(bool)true}} PersistentVolumeSource:(api.PersistentVolumeSource){GCEPersistentDisk:(*api.GCEPersistentDiskVolumeSource) AWSElasticBlockStore:(*api.AWSElasticBlockStoreVolumeSource) HostPath:(*api.HostPathVolumeSource) Glusterfs:(*api.GlusterfsVolumeSource) NFS:(*api.NFSVolumeSource) RBD:(*api.RBDVolumeSource) ISCSI:(*api.ISCSIVolumeSource)}}: no volume plugin matched
Nov 09 17:58:03 core-1-97 kubelet[1254]: E1109 17:58:03.289770 1254 kubelet.go:1210] Unable to mount volumes for pod "rbd2_default": can't use volume plugins for (volume.Spec){Name:(string)rbdpd VolumeSource:(api.VolumeSource){HostPath:(*api.HostPathVolumeSource) EmptyDir:(*api.EmptyDirVolumeSource) GCEPersistentDisk:(*api.GCEPersistentDiskVolumeSource) AWSElasticBlockStore:(*api.AWSElasticBlockStoreVolumeSource) GitRepo:(*api.GitRepoVolumeSource) Secret:(*api.SecretVolumeSource) NFS:(*api.NFSVolumeSource) ISCSI:(*api.ISCSIVolumeSource) Glusterfs:(*api.GlusterfsVolumeSource) PersistentVolumeClaim:(*api.PersistentVolumeClaimVolumeSource) RBD:(*api.RBDVolumeSource){CephMonitors:([]string)[10.14.1.33:6789 10.14.1.35:6789 10.14.1.36:6789] RBDImage:(string)foo FSType:(string)ext4 RBDPool:(string)rbd RadosUser:(string)admin Keyring:(string) SecretRef:(*api.LocalObjectReference){Name:(string)ceph-secret} ReadOnly:(bool)true}} PersistentVolumeSource:(api.PersistentVolumeSource){GCEPersistentDisk:(*api.GCEPersistentDiskVolumeSource) AWSElasticBlockStore:(*api.AWSElasticBlockStoreVolumeSource) HostPath:(*api.HostPathVolumeSource) Glusterfs:(*api.GlusterfsVolumeSource) NFS:(*api.NFSVolumeSource) RBD:(*api.RBDVolumeSource) ISCSI:(*api.ISCSIVolumeSource)}}: no volume plugin matched; skipping pod
Nov 09 17:58:03 core-1-97 kubelet[1254]: E1109 17:58:03.299458 1254 pod_workers.go:111] Error syncing pod 5df3610e-86c8-11e5-bc34-002590fdf95c, skipping: can't use volume plugins for (volume.Spec){Name:(string)rbdpd VolumeSource:(api.VolumeSource){HostPath:(*api.HostPathVolumeSource) EmptyDir:(*api.EmptyDirVolumeSource) GCEPersistentDisk:(*api.GCEPersistentDiskVolumeSource) AWSElasticBlockStore:(*api.AWSElasticBlockStoreVolumeSource) GitRepo:(*api.GitRepoVolumeSource) Secret:(*api.SecretVolumeSource) NFS:(*api.NFSVolumeSource) ISCSI:(*api.ISCSIVolumeSource) Glusterfs:(*api.GlusterfsVolumeSource) PersistentVolumeClaim:(*api.PersistentVolumeClaimVolumeSource) RBD:(*api.RBDVolumeSource){CephMonitors:([]string)[10.14.1.33:6789 10.14.1.35:6789 10.14.1.36:6789] RBDImage:(string)foo FSType:(string)ext4 RBDPool:(string)rbd RadosUser:(string)admin Keyring:(string) SecretRef:(*api.LocalObjectReference){Name:(string)ceph-secret} ReadOnly:(bool)true}} PersistentVolumeSource:(api.PersistentVolumeSource){GCEPersistentDisk:(*api.GCEPersistentDiskVolumeSource) AWSElasticBlockStore:(*api.AWSElasticBlockStoreVolumeSource) HostPath:(*api.HostPathVolumeSource) Glusterfs:(*api.GlusterfsVolumeSource) NFS:(*api.NFSVolumeSource) RBD:(*api.RBDVolumeSource) ISCSI:(*api.ISCSIVolumeSource)}}: no volume plugin matched

我使用 rbd-with-secret.json 的模板文件:

core@core-1-94 ~/kubernetes/examples/rbd $ cat rbd-with-secret.json
{
"apiVersion": "v1",
"id": "rbdpd2",
"kind": "Pod",
"metadata": {
    "name": "rbd2"
},
"spec": {
    "nodeSelector": {"kubernetes.io/hostname" :"10.12.1.97"},
    "containers": [
        {
            "name": "rbd-rw",
            "image": "kubernetes/pause",
            "volumeMounts": [
                {
                    "mountPath": "/mnt/rbd",
                    "name": "rbdpd"
                }
            ]
        }
    ],
    "volumes": [
        {
            "name": "rbdpd",
            "rbd": {
                "monitors": [
            "10.14.1.33:6789",
        "10.14.1.35:6789",
            "10.14.1.36:6789"
            ],
                "pool": "rbd",
                "image": "foo",
                "user": "admin",
                "secretRef": {"name": "ceph-secret"},
                "fsType": "ext4",
                "readOnly": true
            }
        }
    ]
}
}

秘诀:

apiVersion: v1
kind: Secret
metadata:
  name: ceph-secret
data:
  key: QVFBemV6bFdZTXdXQWhBQThxeG1IT2NKa0QrYnE0K3RZUmtsVncK

ceph 配置在/etc/ceph/

core@core-1-94 ~/kubernetes/examples/rbd $ ls -alh /etc/ceph
total 20K
drwxr-xr-x 2 root root 4.0K Nov 6 18:38 .
drwxr-xr-x 26 root root 4.0K Nov 9 17:07 ..
-rw------- 1 root root 63 Nov 4 11:27 ceph.client.admin.keyring
-rw-r--r-- 1 root root 264 Nov 6 18:38 ceph.conf
-rw-r--r-- 1 root root 384 Nov 6 14:35 ceph.conf.orig
-rw------- 1 root root 0 Nov 4 11:27 tmpkqDKwf

键为:

core@core-1-94 ~/kubernetes/examples/rbd $ sudo cat
/etc/ceph/ceph.client.admin.keyring
[client.admin]
键 = AQAzezlWYMwWAhAA8qxmHOcJkD+bq4+tYRklVw==

1 Câu trả lời

如果没有安装 rbd 命令并且在路径中，您将得到“没有匹配的卷插件”。

如示例所示，您需要确保 ceph 已安装在 Kubernetes 节点上。例如，在 Fedora 中:
$ sudo yum -y 安装 ceph-common

我将提出一个问题以澄清错误消息。

关于kubernetes - 在 Kubernetes 错误中使用 RBD，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33606773/