libvirt: add support for dnsmasq options in the terraform files

This adds the dnsmasq options block and the corresponding datasource to the libvirt terraform files

data/data/libvirt/main.tf

@@ -70,6 +70,19 @@ resource "libvirt_network" "net" {
     }
   }
 
+  dnsmasq_options {
+    dynamic "options" {
+      for_each = concat(
+        data.libvirt_network_dnsmasq_options_template.options.*.rendered,
+      )
+      content {
+        option_name  = options.value.option_name
+        option_value = options.value.option_value
+        }
+    }
+  }
+
+
   autostart = true
 }
 
@@ -127,3 +140,9 @@ data "libvirt_network_dns_host_template" "masters_int" {
   hostname = "api-int.${var.cluster_domain}"
 }
 
+data "libvirt_network_dnsmasq_options_template" "options" {
+  count = length(var.libvirt_dnsmasq_options)
+  option_name  = keys(var.libvirt_dnsmasq_options)[count.index]
+  option_value = values(var.libvirt_dnsmasq_options)[count.index]
+}
+

data/data/libvirt/variables-libvirt.tf

@@ -58,3 +58,9 @@ variable "libvirt_master_size" {
   description = "Size of the volume in bytes"
   default     = "17179869184"
 }
+
+variable "libvirt_dnsmasq_options" {
+  type        = map(string)
+  description = "Dnsmasq options to be applied to the libvirt network"
+  default     = {}
+}