Add helper node setup script.

infrastructure_setup/setup_node.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+set -e
+
+apt-get update
+
+# Longhorn requirements
+
+# Install iscsi on all nodes.
+# apt-get install open-iscsi
+# modprobe iscsi_tcp
+# systemctl restart open-iscsi
+kubectl apply -f https://raw.githubusercontent.com/longhorn/longhorn/v1.8.1/deploy/prerequisite/longhorn-iscsi-installation.yaml
+
+# Install NFSv4 client on all nodes.
+# apt-get install nfs-common
+kubectl apply -f https://raw.githubusercontent.com/longhorn/longhorn/v1.8.1/deploy/prerequisite/longhorn-nfs-installation.yaml
+
+apt-get install cryptsetup
+
+# To check longhorn requirements:
+# curl -sSfL https://raw.githubusercontent.com/longhorn/longhorn/v1.8.1/scripts/environment_check.sh | bash