Make host optional

Author: ayashkov

main.tf

@@ -4,28 +4,34 @@ resource "kubernetes_namespace" "headlamp" {
     }
 }
 
+locals {
+    configure_ingress = var.host != null
+}
+
 resource "helm_release" "headlamp" {
     namespace  = kubernetes_namespace.headlamp.metadata[0].name
     name       = "headlamp"
     repository = "https://headlamp-k8s.github.io/headlamp"
     chart      = "headlamp"
     version    = var.headlamp_version
     values     = [
-        <<-EOT
+        !local.configure_ingress ? "" : <<-EOT1
         ingress:
           enabled: true
           hosts:
             - host: ${var.host}
               paths:
                 - path: /
                   type: Prefix
-        EOT
-    , var.ingress_class == null ? "" : <<-EOT
+        EOT1
+    ,
+        !local.configure_ingress || var.ingress_class == null ? "" : <<-EOT2
         ingress:
           annotations:
             kubernetes.io/ingress.class: ${var.ingress_class}
-        EOT
-    , var.issuer_name == null ? "" : <<-EOT
+        EOT2
+    ,
+        !local.configure_ingress || var.issuer_name == null ? "" : <<-EOT3
         config:
           oidc:
             issuerURL: "${var.oidc_issuer_url}"
@@ -39,6 +45,6 @@ resource "helm_release" "headlamp" {
             - secretName: headlamp-tls
               hosts:
                 - ${var.host}
-        EOT
+        EOT3
     ]
 }

outputs.tf

@@ -4,6 +4,6 @@ locals {
 
 output "url" {
     depends_on  = [helm_release.headlamp]
-    value       = "${local.protocol}://${var.host}/"
+    value       = !local.configure_ingress ? null : "${local.protocol}://${var.host}/"
     description = "installed application URL"
 }

variables.tf

@@ -12,7 +12,8 @@ variable "headlamp_version" {
 
 variable "host" {
     type        = string
-    description = "FQDN for the ingress"
+    default     = null
+    description = "FQDN for the ingress, must be set to enable ingress"
 }
 
 variable "ingress_class" {