Vsphere (#7306)

* Add terraform scripts for vSphere

* Fixup: Add terraform scripts for vSphere

* Add inventory generation

* Use machines var to provide IPs

* Add README file

* Add default.tfvars file

* Fix newlines at the end of files

* Remove master.count and worker.count variables

* Fixup cloud-init formatting

* Fixes after initial review

* Add warning about disabled DHCP

* Fixes after second review

* Add sample-inventory

contrib/terraform/vsphere/modules/kubernetes-cluster/templates/cloud-init.tmpl

@@ -0,0 +1,35 @@
+#cloud-config
+
+ssh_authorized_keys:
+%{ for ssh_public_key in ssh_public_keys ~}
+  - ${ssh_public_key}
+%{ endfor ~}
+
+write_files:
+  - path: /etc/netplan/20-internal-network.yaml
+    content: |
+      network:
+        version: 2
+        ethernets:
+          "lo:0":
+            match:
+              name: lo
+            dhcp4: false
+            addresses:
+            - 172.17.0.100/32
+  - path: /etc/netplan/10-user-network.yaml
+    content: |
+      network:
+        version: 2
+        ethernets:
+          ens192:
+            dhcp4: false #true to use dhcp
+            addresses:
+            - ${ip}
+            gateway4: ${gw} # Set gw here
+            nameservers:
+              addresses:
+              - ${dns} # Set DNS ip address here
+
+runcmd:
+  - netplan apply