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/variables.tf

@@ -0,0 +1,89 @@
+## Global ##
+
+variable "prefix" {
+  default = ""
+}
+
+variable "machines" {
+  description = "Cluster machines"
+  type = map(object({
+    node_type = string
+    ip        = string
+  }))
+}
+
+variable "inventory_file" {
+  default = "inventory.ini"
+}
+
+variable "network" {
+  default = "VM Network"
+}
+
+variable "gateway" {}
+
+variable "dns_primary" {
+  default = "8.8.4.4"
+}
+
+variable "dns_secondary" {
+  default = "8.8.8.8"
+}
+
+variable "vsphere_datacenter" {}
+
+variable "vsphere_compute_cluster" {}
+
+variable "vsphere_datastore" {}
+
+variable "vsphere_user" {}
+
+variable "vsphere_password" {}
+
+variable "vsphere_server" {}
+
+variable "vsphere_hostname" {}
+
+variable "firmware" {
+  default = "bios"
+}
+
+variable "hardware_version" {
+  default = "15"
+}
+
+variable "template_name" {
+  default = "ubuntu-focal-20.04-cloudimg"
+}
+
+variable "ssh_public_keys" {
+  description = "List of public SSH keys which are injected into the VMs."
+  type        = list(string)
+}
+
+## Master ##
+
+variable "master_cores" {
+  default = 4
+}
+
+variable "master_memory" {
+  default = 4096
+}
+
+variable "master_disk_size" {
+  default = "20"
+}
+
+## Worker ##
+
+variable "worker_cores" {
+  default = 16
+}
+
+variable "worker_memory" {
+  default = 8192
+}
+variable "worker_disk_size" {
+  default = "100"
+}