wait for load-balancer ip, expose it via terraform

main.tf

@@ -153,10 +153,8 @@ resource "hcloud_placement_group" "k3s" {
   }
 }
 
-/* 
 data "hcloud_load_balancer" "traefik" {
   name = "traefik"
 
-  depends_on = [hcloud_server.agents[0]]
+  depends_on = [module.first_control_plane]
 }
-*/

master.tf

@@ -157,7 +157,14 @@ resource "null_resource" "first_control_plane" {
       "kubectl apply -k /tmp/post_install",
       "echo 'Waiting for the system-upgrade-controller deployment to become available...'",
       "kubectl -n system-upgrade wait --for=condition=available --timeout=120s deployment/system-upgrade-controller",
-      "kubectl -n system-upgrade apply -f /tmp/post_install/plans.yaml"
+      "kubectl -n system-upgrade apply -f /tmp/post_install/plans.yaml",
+      <<-EOT
+      timeout 120 bash <<EOF
+      until [ -n "\$(kubectl get -n kube-system service/traefik --output=jsonpath='{.status.loadBalancer.ingress[0].ip}')" ]; do
+          echo "Waiting for load-balancer to get an IP..."
+      done
+      EOF
+      EOT
     ]
   }
 

output.tf

@@ -8,12 +8,10 @@ output "agents_public_ip" {
   description = "The public IP addresses of the agent server."
 }
 
-/* 
 output "load_balancer_public_ip" {
   description = "The public IPv4 address of the Hetzner load balancer"
   value       = data.hcloud_load_balancer.traefik.ipv4
 }
-*/
 
 output "kubeconfig_file" {
   value       = local.kubeconfig_external