CSI to Flexvolume adapter

Usage:

Start Flexvolume adapter for simple nfs flexvolume driver

$ sudo ./_output/flexadapter --endpoint tcp://127.0.0.1:10000 --drivername simplenfs --driverpath ./pkg/flexadapter/examples/simplenfs-flexdriver/driver/nfs --nodeid CSINode -v=5

Test using csc

Get csc tool from https://github.com/rexray/gocsi/tree/master/csc

Get plugin info

$ csc identity plugin-info --endpoint tcp://127.0.0.1:10000
"simplenfs"	"0.1.0"

NodePublish a volume

$ csc node publish --endpoint tcp://127.0.0.1:10000 --target-path /mnt/nfs --attrib server=a.b.c.d --attrib share=nfs_share nfstestvol
nfstestvol

NodeUnpublish a volume

$ csc node unpublish --endpoint tcp://127.0.0.1:10000 --target-path /mnt/nfs nfstestvol
nfstestvol

Get NodeID

$ csc node get-id --endpoint tcp://127.0.0.1:10000
CSINode