aks cluster version

k8s/gen-k8s-env-aks.ps1

@@ -6,7 +6,8 @@
     [parameter(Mandatory=$true)][string]$dnsName,
     [parameter(Mandatory=$true)][string]$createAcr=$true,
     [parameter(Mandatory=$false)][int]$nodeCount=2,
-    [parameter(Mandatory=$false)][string]$nodeVMSize="Standard_D2_v2"
+    [parameter(Mandatory=$false)][string]$nodeVMSize="Standard_D2_v2",
+	[parameter(Mandatory=$false)][string]$kubernetesVersion="1.7.7"
 )
 
 # Create resource group
@@ -21,7 +22,7 @@ if ($createAcr -eq $true) {
 
 # Create kubernetes orchestrator
 Write-Host "Creating kubernetes orchestrator..." -ForegroundColor Yellow
-az aks create --resource-group=$resourceGroupName --name=$serviceName --dns-name-prefix=$dnsName --generate-ssh-keys --node-count=$nodeCount --node-vm-size=$nodeVMSize
+az aks create --resource-group=$resourceGroupName --name=$serviceName --dns-name-prefix=$dnsName --generate-ssh-keys --node-count=$nodeCount --node-vm-size=$nodeVMSize --kubernetes-version $kubernetesVersion
 
 # Retrieve kubernetes cluster configuration and save it under ~/.kube/config 
 az aks get-credentials --resource-group=$resourceGroupName --name=$serviceName