Feature/support address prefix as array

README.md

@@ -42,16 +42,25 @@ module "route_table" {
 ## route_table
 (Required) The routing table object describing the route table configuration
 Mandatory properties are:
-- name
-- at least one route_entries item as follow:
+- name (type=string)
+- route_entries (type=object)
+  - name (type=string)
+  - prefix (type=string or type=array)
+  - next_hop_type (type=string)
+  - next_hop_in_ip_address (type=string)
 ```hcl
   re1= {
             name                        = "myroute1"
             prefix                      = "255.0.0.0/8"
             next_hop_type               = "None"
-            next_hop_in_ip_address      = "192.168.10.5" #required if next_hop_type is "VirtualAppliance"
-
-          },
+        },
+  re2= {
+          name                        = "myroute1"
+          prefix                      = ["10.10.1.0/24","10.10.2.0/24"]
+          next_hop_type               = "VirtualAppliance"
+          next_hop_in_ip_address      = "192.168.10.5" #required if next_hop_type is "VirtualAppliance"
+
+        },
 ```
 Optional fields:
 - disable_bgp_route_propagation

module.tf

@@ -8,12 +8,26 @@ resource "azurerm_route_table" "route_table" {
   disable_bgp_route_propagation = lookup(var.route_table, "disable_bgp_route_propagation", null)
 
   dynamic "route" {
-    for_each = var.route_table.route_entries
+    for_each = flatten(
+      [
+          for route_key,route_value in var.route_table.route_entries :
+          [
+            for address_key, address_value in flatten(list(route_value.prefix)): # flatten(list()) handles support for both array & string
+            {
+              name                   = replace(join("-",list(route_value.name,address_value)),"/","_") # build name from route table name + address prefix, escape slash
+              address_prefix         = address_value
+              next_hop_type          = route_value.next_hop_type
+              next_hop_in_ip_address = route_value.next_hop_type == "VirtualAppliance" ? (var.next_hop_in_dynamic_private_ip != null && var.next_hop_in_dynamic_private_ip != "null" && var.next_hop_in_dynamic_private_ip != "" ? var.next_hop_in_dynamic_private_ip : route_value.next_hop_in_ip_address) : null
+            }
+          ]
+      ]
+    )
+
     content {
       name                   = route.value.name
-      address_prefix         = route.value.prefix
+      address_prefix         = route.value.address_prefix
       next_hop_type          = route.value.next_hop_type
-      next_hop_in_ip_address = route.value.next_hop_type == "VirtualAppliance" ? (var.next_hop_in_dynamic_private_ip != null && var.next_hop_in_dynamic_private_ip != "null" && var.next_hop_in_dynamic_private_ip != "" ? var.next_hop_in_dynamic_private_ip : route.value.next_hop_in_ip_address) : null
+      next_hop_in_ip_address = route.value.next_hop_in_ip_address
     }
   }
 }