From c9cdf520c1a84504b3e75fecd4ced40818f777f3 Mon Sep 17 00:00:00 2001
From: Serge Logvinov <serge.logvinov@sinextra.dev>
Date: Mon, 3 Apr 2023 18:32:34 +0300
Subject: [PATCH] network subnets

---
 proxmox/instances-worker.tf | 6 ++----
 proxmox/network.tf          | 5 +++++
 proxmox/variables.tf        | 8 +++++++-
 3 files changed, 14 insertions(+), 5 deletions(-)
 create mode 100644 proxmox/network.tf

diff --git a/proxmox/instances-worker.tf b/proxmox/instances-worker.tf
index 2044809..046c60b 100644
--- a/proxmox/instances-worker.tf
+++ b/proxmox/instances-worker.tf
@@ -1,8 +1,6 @@
 
 locals {
   worker_prefix = "worker"
-
-  zones = [for k, v in var.instances : k]
   workers = { for k in flatten([
     for zone in local.zones : [
       for inx in range(lookup(try(var.instances[zone], {}), "worker_count", 0)) : {
@@ -12,7 +10,7 @@ locals {
         node_name : zone
         cpu : lookup(try(var.instances[zone], {}), "worker_cpu", 1)
         mem : lookup(try(var.instances[zone], {}), "worker_mem", 2048)
-        ipv4 : "${cidrhost(var.vpc_main_cidr, 81 + inx)}/24"
+        ipv4 : "${cidrhost(local.subnets[zone], inx)}/24"
         gwv4 : local.gwv4
       }
     ]
@@ -24,7 +22,7 @@ output "workers" {
 }
 
 resource "null_resource" "worker_machineconfig" {
-  for_each = var.instances
+  for_each = { for k, v in var.instances : k => v if lookup(try(var.instances[k], {}), "worker_count", 0) > 0 }
   connection {
     type = "ssh"
     user = "root"
diff --git a/proxmox/network.tf b/proxmox/network.tf
new file mode 100644
index 0000000..ed73825
--- /dev/null
+++ b/proxmox/network.tf
@@ -0,0 +1,5 @@
+
+locals {
+  zones   = [for k, v in var.instances : k]
+  subnets = { for inx, zone in local.zones : zone => cidrsubnet(var.vpc_main_cidr, 5, var.network_shift + inx) }
+}
diff --git a/proxmox/variables.tf b/proxmox/variables.tf
index 4e0e58b..b2ca803 100644
--- a/proxmox/variables.tf
+++ b/proxmox/variables.tf
@@ -59,10 +59,16 @@ variable "kubernetes" {
   sensitive = true
 }
 
+variable "network_shift" {
+  description = "Network number shift"
+  type        = number
+  default     = 6
+}
+
 variable "vpc_main_cidr" {
   description = "Local proxmox subnet"
   type        = string
-  default     = "192.168.10.0/24"
+  default     = "192.168.0.0/24"
 }
 
 variable "controlplane" {