main.tf

@@ -1,8 +1,8 @@
 locals {
   ipv4_addresses = {
     for server_key, server in var.server : server.name => flatten([
-      for k, v in try(proxmox_virtual_environment_vm.server[server.name].ipv4_addresses, []) :
-      v if length(regexall(try(server.netif_filter, var.server_netif_filter), proxmox_virtual_environment_vm.server[server.name].network_interface_names[k])) > 0
+      for k, v in coalescelist(proxmox_virtual_environment_vm.server[server.name].ipv4_addresses, []) :
+      v if length(regexall(try(server.netif_filter, var.server_netif_filter), proxmox_virtual_environment_vm.server[server.name].network_interface_names[k])) == 0
     ])
   }
 }
@@ -10,8 +10,8 @@ locals {
 locals {
   ipv6_addresses = {
     for server_key, server in var.server : server.name => flatten([
-      for k, v in try(proxmox_virtual_environment_vm.server[server.name].ipv6_addresses, []) :
-      v if length(regexall(try(server.netif_filter, var.server_netif_filter), proxmox_virtual_environment_vm.server[server.name].network_interface_names[k])) > 0
+      for k, v in coalescelist(proxmox_virtual_environment_vm.server[server.name].ipv6_addresses, []) :
+      v if length(regexall(try(server.netif_filter, var.server_netif_filter), proxmox_virtual_environment_vm.server[server.name].network_interface_names[k])) == 0
     ])
   }
 }

variables.tf

@@ -46,5 +46,5 @@ variable "server_guest_agent" {
 
 variable "server_netif_filter" {
   type    = string
-  default = "^(eth|ens|enp).+"
+  default = "^(lo|docker|veth).*"
 }