Update NVIDIA drivers to 396 (#3224)

docs/kubernetes/gpu.md

@@ -1,7 +1,7 @@
 # Microsoft Azure Container Service Engine - Using GPUs with Kubernetes
 
 If you created a Kubernetes cluster with one or multiple agent pool(s) whose VM size is `Standard_NC*` or `Standard_NV*` you can schedule GPU workload on your cluster.
-The NVIDIA drivers are automatically installed on every GPU agent in your cluster, so you don't need to do that manually, unless you require a specific version of the drivers. Currently, the installed driver is version 390.30.
+The NVIDIA drivers are automatically installed on every GPU agent in your cluster, so you don't need to do that manually, unless you require a specific version of the drivers. Currently, the installed driver is version 396.26.
 
 To make sure everything is fine, run `kubectl describe node <name-of-a-gpu-node>`. You should see the correct number of GPU reported (in this example shows 2 GPU for a NC12 VM):
 

pkg/acsengine/engine.go

@@ -445,7 +445,7 @@ func isCustomVNET(a []*api.AgentPoolProfile) bool {
 func getGPUDriversInstallScript(profile *api.AgentPoolProfile) string {
 
 	// latest version of the drivers. Later this parameter could be bubbled up so that users can choose specific driver versions.
-	dv := "390.30"
+	dv := "396.26"
 	dest := "/usr/local/nvidia"
 	nvidiaDockerVersion := "2.0.3"
 	dockerVersion := "1.13.1-1"