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增加issue kubernetes 集成 ceph 存储 rbd 命令组装问题

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Jimmy Song 2017-09-06 17:25:56 +08:00
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@ -81,7 +81,29 @@ options ndots:5
修改 `/etc/kubernetes/kubelet` 文件中的 `––cluster-domain=cluster.local.` 将 local 后面的点去掉后重启所有的 kubelet，这样新创建的 pod 中的 `/etc/resolv.conf`文件的 DNS 配置和解析就正常了。
**参考**
## 8. kubernetes 集成 ceph 存储 rbd 命令组装问题
kubernetes 使用 ceph 创建 PVC 的时候会有如下报错信息：
```bash
Events:
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
1h 12s 441 {persistentvolume-controller } Warning ProvisioningFailed Failed to provision volume with StorageClass "ceph-web": failed to create rbd image: executable file not found in $PATH, command output:
```
检查 `kube-controller-manager` 的日志将看到如下错误信息：
```
Sep 4 15:25:36 bj-xg-oam-kubernetes-001 kube-controller-manager: W0904 15:25:36.032128 13211 rbd_util.go:364] failed to create rbd image, output
Sep 4 15:25:36 bj-xg-oam-kubernetes-001 kube-controller-manager: W0904 15:25:36.032201 13211 rbd_util.go:364] failed to create rbd image, output
Sep 4 15:25:36 bj-xg-oam-kubernetes-001 kube-controller-manager: W0904 15:25:36.032252 13211 rbd_util.go:364] failed to create rbd image, output
Sep 4 15:25:36 bj-xg-oam-kubernetes-001 kube-controller-manager: E0904 15:25:36.032276 13211 rbd.go:317] rbd: create volume failed, err: failed to create rbd image: fork/exec /usr/bin/rbd: invalid argument, command output:
```
该问题尚未解决，参考 [Error creating rbd image: executable file not found in $PATH#38923](https://github.com/kubernetes/kubernetes/issues/38923)
## 参考
[Persistent Volume](https://kubernetes.io/docs/concepts/storage/persistent-volumes/)