heketi 怎么扩展glusterfs volume 空间

第一步：找到pv

[root@node1 ~]# kubectl get pv | grep alpaca
pvc-05ad53e8-63f4-11e8-b789-002197403677   22G        RWO            Retain           Bound      dev-mysql/mysql-data-alpaca-pxc-0                           glusterfs-storage-dv             23d
pvc-11fc0ba7-63f6-11e8-b789-002197403677   22G        RWO            Retain           Bound      dev-mysql/mysql-data-alpaca-pxc-2                           glusterfs-storage-dv             22d
pvc-16531610-63f5-11e8-b789-002197403677   22G        RWO            Retain           Bound      dev-mysql/mysql-data-alpaca-pxc-1                           glusterfs-storage-dv             23d
pvc-a1b05f3f-7459-11e8-affc-002197403677   2G         RWX            Retain           Bound      default/pvc-alpaca-withlog                                  glusterfs-storage-dv             2d
pvc-d67790bb-64bc-11e8-b789-002197403677   33G        RWX            Retain           Bound      dev-mysql/pvc-alpaca                                        glusterfs-storage-dv             22d

第二步，describe pv

[root@node1 ~]# kubectl describe pv pvc-d67790bb-64bc-11e8-b789-002197403677 
Name:            pvc-d67790bb-64bc-11e8-b789-002197403677
Labels:          <none>
Annotations:     Description=Gluster-Internal: Dynamically provisioned PV
                 gluster.org/type=file
                 kubernetes.io/createdby=heketi-dynamic-provisioner
                 pv.beta.kubernetes.io/gid=2019
                 pv.kubernetes.io/bound-by-controller=yes
                 pv.kubernetes.io/provisioned-by=kubernetes.io/glusterfs
                 volume.beta.kubernetes.io/mount-options=auto_unmount
StorageClass:    glusterfs-storage-dv
Status:          Bound
Claim:           dev-mysql/pvc-alpaca
Reclaim Policy:  Retain
Access Modes:    RWX
Capacity:        33G
Message:         
Source:
    Type:           Glusterfs (a Glusterfs mount on the host that shares a pod's lifetime)
    EndpointsName:  glusterfs-dynamic-pvc-alpaca
    Path:           vol_0be16e06735b4099d90fe5c9fdc4fb00
    ReadOnly:       false
Events:             <none>

取出Path：

vol_0be16e06735b4099d90fe5c9fdc4fb00

第三步：进入heketi容器

kubectl exec -it heketi-6d8cc557ff-8tw9q  -n kube-system /bin/sh

第四步在heketi容器里执行命令：

heketi-cli volume expand --volume=0be16e06735b4099d90fe5c9fdc4fb00 --expand-size=10

其中：--volume为上面取出的path去掉vol_前缀