Adding final ESXI deployment code

ESXi/Packer/scripts/networking.sh

@@ -0,0 +1,25 @@
+#!/bin/sh -eux
+
+ubuntu_version="`lsb_release -r | awk '{print $2}'`";
+major_version="`echo $ubuntu_version | awk -F. '{print $1}'`";
+
+if [ "$major_version" -ge "18" ]; then
+echo "Create netplan config for eth0"
+cat <<EOF >/etc/netplan/01-netcfg.yaml;
+network:
+  version: 2
+  ethernets:
+    eth0:
+      dhcp4: true
+EOF
+else
+  # Adding a 2 sec delay to the interface up, to make the dhclient happy
+  echo "pre-up sleep 2" >> /etc/network/interfaces;
+fi
+
+if [ "$major_version" -ge "16" ]; then
+  # Disable Predictable Network Interface names and use eth0
+  sed -i 's/en[[:alnum:]]*/eth0/g' /etc/network/interfaces;
+  sed -i 's/GRUB_CMDLINE_LINUX="\(.*\)"/GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0 \1"/g' /etc/default/grub;
+  update-grub;
+fi