Updated k8s version & bootstrap step

Author: uc-msft

samples/features/sql-big-data-cluster/bootstrap-sample-db.sql

@@ -10,8 +10,12 @@ END;
 GO
 
 -- Enable external scripts execution for R/Python/Java:
-exec sp_configure 'external scripts enabled', 1;
-RECONFIGURE WITH OVERRIDE;
+DECLARE @config_option nvarchar(100) = 'external scripts enabled';
+IF NOT EXISTS(SELECT * FROM sys.configurations WHERE name = @config_option)
+BEGIN
+	exec sp_configure @config_option, 1;
+	RECONFIGURE WITH OVERRIDE;
+END;
 GO
 
 IF DB_ID('sales') IS NULL

samples/features/sql-big-data-cluster/deployment/kubeadm/ubuntu/setup-k8s-master.sh

@@ -2,7 +2,7 @@
 
 # Initialize a kubernetes cluster on the current node.
 #
-KUBE_VERSION=1.13.0
+KUBE_VERSION=1.13.4
 sudo kubeadm init --pod-network-cidr=10.244.0.0/16 --kubernetes-version=$KUBE_VERSION
 mkdir -p $HOME/.kube
 sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config

samples/features/sql-big-data-cluster/deployment/kubeadm/ubuntu/setup-k8s-prereqs.sh

@@ -10,7 +10,7 @@ cat <<EOF >/etc/apt/sources.list.d/kubernetes.list
 deb http://apt.kubernetes.io/ kubernetes-xenial main
 EOF
 
-KUBE_DPKG_VERSION=1.13.0-00
+KUBE_DPKG_VERSION=1.13.4-00
 apt-get update
 apt-get install -y ebtables ethtool
 apt-get install -y docker.io