ceph rbd 找回 pvc

由于集群崩溃，需要恢复之前链接 ceph 的数据，操作步骤如下
+ 列出所有pvc
rbd list kube
kubernetes-dynamic-pvc-0364140f-1c92-11ea-9600-cef7a4533627
kubernetes-dynamic-pvc-2549266c-1c8c-11ea-9600-cef7a4533627
kubernetes-dynamic-pvc-2a9bfa56-05b5-11ea-916d-0abaeaca5eaa
kubernetes-dynamic-pvc-30d37cbe-092a-11ea-916d-0abaeaca5eaa


+ 映射
rbd map kube/xxxxxxxx

+ 挂载
mkdir -p /mnt/rbd0
mount /dev/rbd0 /mnt/rbd0

cd /mnt/rbd0 查看内容


umount /mnt/rbd0

rbd unmap kube/xxxx