call Probe error due to timeout setting is too short

[wnxn]

Hi,

1. I develop a CSI driver and implement Probe call. The Probe call verifies driver status and takes about 2 seconds. The external attacher prints calling Probe RPC timeout log (Probe failed with rpc error: code = DeadlineExceeded desc = context deadline exceeded). In my opinion, when external attacher calling Probe, the timeout setting is too short (only one second). We can increase timeout second.
   

   external-attacher/cmd/csi-attacher/main.go

   Line 198 in 5a4cc3b

   ctx, cancel := context.WithTimeout(context.Background(), csiTimeout)

2. We would not share the same context object in several GRPC call.
   

   external-attacher/cmd/csi-attacher/main.go

   Line 101 in 5a4cc3b

   csiConn, err := connection.New(*csiAddress, *connectionTimeout)

[jsafrane]

fixed by #68