Added terraform support for Exoscale (#7141)

* Added terraform support for Exoscale

* Fixed markdown lint error on exoscale terraform

contrib/terraform/exoscale/variables.tf

@@ -0,0 +1,46 @@
+variable zone {
+  description = "The zone where to run the cluster"
+}
+
+variable prefix {
+  description = "Prefix for resource names"
+  default     = "default"
+}
+
+variable machines {
+  description = "Cluster machines"
+  type = map(object({
+    node_type = string
+    size      = string
+    boot_disk = object({
+      image_name                = string
+      root_partition_size       = number
+      ceph_partition_size       = number
+      node_local_partition_size = number
+    })
+  }))
+}
+
+variable ssh_pub_key {
+  description = "Path to public SSH key file which is injected into the VMs."
+  type        = string
+}
+
+variable ssh_whitelist {
+  description = "List of IP ranges (CIDR) to whitelist for ssh"
+  type = list(string)
+}
+
+variable api_server_whitelist {
+  description = "List of IP ranges (CIDR) to whitelist for kubernetes api server"
+  type = list(string)
+}
+
+variable nodeport_whitelist {
+  description = "List of IP ranges (CIDR) to whitelist for kubernetes nodeports"
+  type = list(string)
+}
+
+variable "inventory_file" {
+  description = "Where to store the generated inventory file"
+}