From 5059720757807f03eaa9f16814d9d623768ab915 Mon Sep 17 00:00:00 2001
From: Philippe Caseiro <pcaseiro@cadoles.com>
Date: Thu, 2 Feb 2023 14:43:16 +0100
Subject: [PATCH] feat(module): adding Nebula module for OpenNebula virtual
 machine creation with a 'variable'

---
 modules/nebula/main.tf    | 116 ++++++++++++++++++++++++++++++++++++++
 modules/nebula/output.tf  |  11 ++++
 modules/nebula/version.tf |   9 +++
 3 files changed, 136 insertions(+)
 create mode 100644 modules/nebula/main.tf
 create mode 100644 modules/nebula/output.tf
 create mode 100644 modules/nebula/version.tf

diff --git a/modules/nebula/main.tf b/modules/nebula/main.tf
new file mode 100644
index 0000000..188c81a
--- /dev/null
+++ b/modules/nebula/main.tf
@@ -0,0 +1,116 @@
+variable "vms" {
+    type = map
+    description = "Virtual Machines description"
+}
+
+variable "image_driver" {
+    default = "qcow2"
+}
+
+variable "image_format" {
+    default = "qcow2"
+}
+
+variable "dev_prefix" {
+    default = "vd"
+}
+
+variable "permissions" {
+    default = "600"
+}
+
+variable "graphics" {
+    default = {
+        keymap = "fr"
+        listen = "0.0.0.0"
+        type = "VNC"
+    }
+  
+}
+
+variable "one_prod_ds" {
+  default = "101"
+}
+
+// system image
+resource "opennebula_image" "system" {
+  for_each = var.vms
+
+  name = "system-${each.key}.${each.value.domain}"
+  description = "System disk for ${each.key}"
+  datastore_id = var.one_prod_ds 
+  path = "https://vulcain.cadoles.com/empty_20G"
+  persistent = each.value.system_image_persistent
+  driver = var.image_driver
+  format = var.image_format
+  dev_prefix = var.dev_prefix
+  permissions = var.permissions
+}
+
+// data image
+resource "opennebula_image" "data" {
+  for_each = var.vms
+
+  name = "data-${each.key}.${each.value.domain}"
+  path = "https://vulcain.cadoles.com/empty_40G"
+  datastore_id = var.one_prod_ds 
+  description = "data disk for ${each.key}"
+  persistent = each.value.data_image_persistent
+  driver = var.image_driver
+  format = var.image_format
+  dev_prefix = var.dev_prefix
+  permissions = var.permissions
+}
+
+resource "opennebula_template" "vm_template" {
+  for_each = var.vms
+
+  name = each.key
+  cpu = each.value.cpu
+  vcpu = each.value.vcpu
+  memory = each.value.ram
+  graphics {
+    keymap = var.graphics.keymap
+    listen = var.graphics.listen
+    type = var.graphics.type
+  }
+  context = {
+    SET_HOSTNAME = "$NAME"
+    DNS_HOSTNAME = "YES"
+    NETWORK = "YES"
+    SSH_PUBLIC_KEY = "$USER[SSH_PUBLIC_KEY]"
+    USERNAME = "root"
+  }
+  disk {
+    image_id = opennebula_image.system[each.key].id
+  }
+  disk {
+    image_id = opennebula_image.data[each.key].id
+  }
+
+  os {
+    arch = "x86_64"
+    boot = "disk0,nic0"
+  }
+  //labels = var.tag_labels
+
+  dynamic "nic" {
+    for_each = each.value.network_interfaces
+
+    content {
+      network_id = nic.value.network_id
+      model = "virtio"
+      ip = nic.value.ip
+    }
+  }
+  permissions = var.permissions
+  depends_on = [ opennebula_image.system,
+                 opennebula_image.data ]
+}
+
+resource "opennebula_virtual_machine" "vm" {
+  for_each = var.vms
+  name = "${each.key}.${each.value.domain}"
+  template_id = opennebula_template.vm_template[each.key].id
+  depends_on = [ opennebula_template.vm_template ]
+}
diff --git a/modules/nebula/output.tf b/modules/nebula/output.tf
new file mode 100644
index 0000000..d8a7919
--- /dev/null
+++ b/modules/nebula/output.tf
@@ -0,0 +1,11 @@
+output "shortnames" {
+  value = keys(var.vms)
+}
+
+output "first_macs" {
+  value = opennebula_virtual_machine.vm //FIXME .template_nic[0].computed_mac
+}
+
+output "virtual_machines" {
+  value = opennebula_virtual_machine.vm //template_nic[0].computed_mac)
+}
\ No newline at end of file
diff --git a/modules/nebula/version.tf b/modules/nebula/version.tf
new file mode 100644
index 0000000..4af80ce
--- /dev/null
+++ b/modules/nebula/version.tf
@@ -0,0 +1,9 @@
+terraform {
+  required_providers {
+    opennebula = {
+      source = "OpenNebula/opennebula"
+      version = "~> 1.0"
+    }
+  }
+}
+