Update Terraform configuration for subnet address prefixes and streamline init command

Author: martinyy108

.github/workflows/terraform.yml

@@ -34,7 +34,7 @@ jobs:
         RESOURCE_GROUP: ${{ secrets.RESOURCE_GROUP }}
         STORAGE_ACCOUNT: ${{ secrets.STORAGE_ACCOUNT }}
         CONTAINER_NAME: ${{ secrets.CONTAINER_NAME }}
-      run: terraform init -upgrade -backend-config="storage_account_name=$STORAGE_ACCOUNT" -backend-config="container_name=$CONTAINER_NAME" -backend-config="resource_group_name=$RESOURCE_GROUP"
+      run: terraform init -backend-config="storage_account_name=$STORAGE_ACCOUNT" -backend-config="container_name=$CONTAINER_NAME" -backend-config="resource_group_name=$RESOURCE_GROUP"
 
     - name: Terraform Plan
       id: plan

main/main.tf

@@ -22,43 +22,43 @@ resource "azurerm_virtual_network" "example" {
   #dns_servers         = ["10.0.0.4", "10.0.0.5"]
 
   subnet {
-    name           = "fw-subnet"
-    address_prefix = "10.0.1.0/24"
+    name             = "fw-subnet"
+    address_prefixes = ["10.0.1.0/24"]
   }
 
   subnet {
-    name           = "gw-subnet"
-    address_prefix = "10.0.2.0/24"
+    name             = "gw-subnet"
+    address_prefixes = ["10.0.2.0/24"]
     #security_group   = azurerm_network_security_group.example.id
   }
 
   subnet {
-    name           = "vm-subnet"
-    address_prefix = "10.0.3.0/24"
+    name             = "vm-subnet"
+    address_prefixes = ["10.0.3.0/24"]
     #security_group   = azurerm_network_security_group.example.id
   }
 
   subnet {
-    name           = "pe-subnet"
-    address_prefix = "10.0.4.0/24"
+    name             = "pe-subnet"
+    address_prefixes = ["10.0.4.0/24"]
     #security_group   = azurerm_network_security_group.example.id
   }
 
   subnet {
-    name           = "app-subnet"
-    address_prefix = "10.0.5.0/24"
+    name             = "app-subnet"
+    address_prefixes = ["10.0.5.0/24"]
     #security_group   = azurerm_network_security_group.example.id
   }
 
   subnet {
-    name           = "db-subnet"
-    address_prefix = "10.0.6.0/24"
+    name             = "db-subnet"
+    address_prefixes = ["10.0.6.0/24"]
     #security_group   = azurerm_network_security_group.example.id
   }
 
   subnet {
-    name           = "waf-subnet"
-    address_prefix = "10.0.7.0/24"
+    name             = "waf-subnet"
+    address_prefixes = ["10.0.7.0/24"]
     #security_group   = azurerm_network_security_group.example.id
   }