fix(ci): use direct in-cluster Kubernetes auth for CI runner — drop kubeconfig file dependency

terraform/main.tf

@@ -1,6 +1,5 @@
 locals {
-  kubeconfig_path = var.kubeconfig_path
-  cluster_domain  = var.cluster_domain
+  cluster_domain = var.cluster_domain
 }
 
 # Helm repositories will be created in helm-repositories.tf

terraform/providers.tf

@@ -29,12 +29,18 @@ terraform {
 }
 
 provider "kubernetes" {
-  config_path = var.kubeconfig_path
+  host                   = "https://kubernetes.default"
+  token                  = try(file("/var/run/secrets/kubernetes.io/serviceaccount/token"), "")
+  cluster_ca_certificate = try(file("/var/run/secrets/kubernetes.io/serviceaccount/ca.crt"), "")
+  insecure               = false
 }
 
 provider "helm" {
   kubernetes {
-    config_path = var.kubeconfig_path
+    host                   = "https://kubernetes.default"
+    token                  = try(file("/var/run/secrets/kubernetes.io/serviceaccount/token"), "")
+    cluster_ca_certificate = try(file("/var/run/secrets/kubernetes.io/serviceaccount/ca.crt"), "")
+    insecure               = false
   }
 }
 

terraform/variables.tf

@@ -1,9 +1,3 @@
-variable "kubeconfig_path" {
-  description = "Path to kubeconfig file"
-  type        = string
-  default     = "cluster-config/kubeconfig"
-}
-
 variable "cluster_domain" {
   description = "Cluster domain (e.g., riotpiao.homelab.com)"
   type        = string