如何挂载一个已有的cephfs目录

[zm274310577]

使用ceph-deploy部署的ceph，可以创建pv来挂载cephfs的中已有的某个目录，如：
apiVersion: v1
kind: PersistentVolume
metadata:
name: cephfs-pv
labels:
pv: cephfs-pv
spec:
capacity:
storage: 1Gi
accessModes:
- ReadWriteMany
cephfs:
monitors:
- 192.168.1.10:6789
- 192.168.1.11:6789
user: admin
path: /test/path
secretRef:
name: ceph-secret
readOnly: false
persistentVolumeReclaimPolicy: Delete

只要提供monitors、path、secret可以把cephfs上的/test/path目录挂载到pod的某个路径下，如/mnt/cephfs。那么从pod的/mnt/cephfs目录读取数据，就相当于从cephfs的/test/path中读取数据。

但是在rook中，无论csi中的 rbd 还是 cephfs，都是使用storageclass创建一个新的volume进行挂载。这样就不能使用cephfs中已有的数据了。

那位大神知道在rook中怎么实现挂载cephfs中已有目录的方法。万分感谢！

[nixpanic]

Sorry, not a lot of (if any) regular contributors will be able to read your language. Could you please elaborate it a little more, preferably in English? If you are reporting a problem, please include log messages from the start of the operation until the error happens.

[elrondwong]

这个issue应该可以解决你的问题 #1119
参照cephfs-static-pvc

[Madhu-1]

Closing this one. please feel free to open/update the issue with the template in English. and the above static PV is not as per the doc https://github.com/ceph/ceph-csi/blob/devel/docs/static-pvc.md#create-cephfs-static-pv.