feat: add system and customer node pools, scale default workers to 0

terraform/variables.tf

@@ -46,22 +46,22 @@ variable "k8s_version" {
   default     = "1.32.13-do.2"
 }
 
-variable "k8s_node_size" {
-  description = "Node pool droplet size"
+variable "k8s_system_node_size" {
+  description = "System node pool droplet size (infra workloads)"
   type        = string
   default     = "s-2vcpu-4gb"
 }
 
-variable "k8s_min_nodes" {
-  description = "Minimum nodes in the pool"
-  type        = number
-  default     = 1
+variable "k8s_customer_node_size" {
+  description = "Customer node pool droplet size (app instances)"
+  type        = string
+  default     = "s-1vcpu-2gb"
 }
 
-variable "k8s_max_nodes" {
-  description = "Maximum nodes in the pool"
+variable "k8s_max_customer_nodes" {
+  description = "Maximum nodes in the customer pool"
   type        = number
-  default     = 3
+  default     = 10
 }
 
 variable "cluster_lb_ip" {