infra: introduce terraform/opentofu for proxmox management

- move ansible project within infra
- introduce terraform/opentofu for proxmox VM management

infra/terraform/proxmox/variables.tf

@@ -0,0 +1,81 @@
+# variables for minio backend configuration
+variable "minio_access_key" {
+  description = "MinIO access key"
+  type        = string
+}
+
+variable "minio_secret_key" {
+  description = "MinIO secret key"
+  type        = string
+}
+
+variable "minio_endpoint" {
+  description = "MinIO API endpoint"
+  type        = string
+}
+
+# Variables for Proxmox configuration
+variable "pm_api_url" {
+  description = "Proxmox API URL"
+  type        = string
+  sensitive   = true
+}
+
+variable "pm_api_token" {
+  description = "Proxmox password"
+  type        = string
+  sensitive   = true
+}
+
+variable "pm_insecure" {
+  description = "Allow insecure connections to Proxmox API"
+  type        = bool
+  default     = true
+}
+
+variable "pm_user" {
+  description = "Proxmox user"
+  type        = string
+  sensitive   = true
+}
+
+variable "pm_ssh_public_key_path" {
+  description = "Path to SSH public key file"
+  type        = string
+}
+
+variable "pm_ssh_private_key_path" {
+  description = "Path to SSH private key file"
+  type        = string
+}
+
+variable "vms" {
+  description = "List of VMs to create"
+  type = list(object({
+    name      = string
+    node_name = string
+    vm_id     = number
+    ip_address = string
+    dns_servers = list(string)
+    gateway   = string
+    cores     = number
+    memory    = number
+    disk_size = number
+  }))
+}
+
+variable "nodes" {
+  type    = list(string)
+  default = ["homeserver1", "homeserver2"]
+}
+
+variable "vm_user_name" {
+  description = "Username for the VM"
+  type        = string
+}
+
+variable "vm_user_password" {
+  description = "Password for the VM user"
+  type        = string
+  sensitive   = true
+}