feat(tofu): better way of supplying apiServer arguments

tofu/kubernetes/talos/config.tf

@@ -36,7 +36,7 @@ data "talos_machine_configuration" "this" {
       templatefile("${path.module}/machine-config/control-plane.yaml.tftpl", {
         cilium_values  = file("${path.root}/${var.cilium.values_path}")
         cilium_install = file("${path.root}/${var.cilium.install_manifest_path}")
-        base_domain    = var.cluster.base_domain
+        api_server = var.cluster.api_server
       }) : ""
   ]
 }

tofu/kubernetes/talos/machine-config/control-plane.yaml.tftpl

@@ -7,13 +7,7 @@ machine:
 cluster:
   allowSchedulingOnControlPlanes: true
   apiServer:
-    extraArgs:
-      oidc-issuer-url: https://authelia.${base_domain}
-      oidc-client-id: kubectl
-      oidc-username-claim: preferred_username
-      oidc-username-prefix: 'authelia:'
-      oidc-groups-claim: groups
-      oidc-groups-prefix: 'authelia:'
+    ${indent(4, api_server)}
   network:
     cni:
       name: none

tofu/kubernetes/talos/variables.tf

@@ -23,7 +23,7 @@ variable "cluster" {
     talos_machine_config_version = optional(string)
     proxmox_cluster    = string
     kubernetes_version = string
-    base_domain        = string
+    api_server = optional(string)
   })
 }
 

tofu/kubernetes/talos_cluster.auto.tfvars

@@ -13,7 +13,15 @@ talos_cluster_config = {
   talos_machine_config_version = "v1.9.2"
   proxmox_cluster              = "homelab"
   kubernetes_version = "1.32.0"  # renovate: github-releases=kubernetes/kubernetes
-  base_domain                  = "stonegarden.dev"
+  api_server = <<-EOT
+    extraArgs:
+      oidc-issuer-url: "https://authelia.stonegarden.dev"
+      oidc-client-id: "kubectl"
+      oidc-username-claim: "preferred_username"
+      oidc-username-prefix: "authelia:"
+      oidc-groups-claim: "groups"
+      oidc-groups-prefix: "authelia:"
+  EOT
 }
 
 cilium_config = {

tofu/kubernetes/variables.tf

@@ -39,7 +39,7 @@ variable "talos_cluster_config" {
     talos_machine_config_version = optional(string)
     proxmox_cluster    = string
     kubernetes_version = string
-    base_domain        = string
+    api_server = optional(string)
   })
 }