Merge pull request #1001 from schlichtanders/load-balancer-create

create cluster load balancer with terraform

README.md

@@ -760,11 +760,23 @@ module "kube-hetzner" {
         etcd --version
         etcdctl version
 
-        # delete traefik service so that no load-balancer is accidently changed
+        # start etcd server in the background
         nohup etcd --data-dir /var/lib/rancher/k3s/server/db/etcd &
         echo $! > save_pid.txt
+
+        # delete traefik service so that no load-balancer is accidently changed
         etcdctl del /registry/services/specs/traefik/traefik
         etcdctl del /registry/services/endpoints/traefik/traefik
+
+        # delete old nodes (they interfere with load balancer)
+        # minions is the old name for "nodes"
+        OLD_NODES=$(etcdctl get "" --prefix --keys-only | grep /registry/minions/ | cut -c 19-)
+        for NODE in $OLD_NODES; do
+          for KEY in $(etcdctl get "" --prefix --keys-only | grep $NODE); do
+            etcdctl del $KEY
+          done
+        done
+
         kill -9 `cat save_pid.txt`
         rm save_pid.txt
       else

data.tf

@@ -28,12 +28,12 @@ data "github_release" "calico" {
   retrieve_by = "latest"
 }
 
-data "hcloud_load_balancer" "cluster" {
-  count = local.has_external_load_balancer ? 0 : 1
-  name  = var.cluster_name
+# data "hcloud_load_balancer" "cluster" {
+#   count = local.has_external_load_balancer ? 0 : 1
+#   name  = var.cluster_name
 
-  depends_on = [null_resource.kustomization]
-}
+#   depends_on = [null_resource.kustomization]
+# }
 
 data "hcloud_ssh_keys" "keys_by_selector" {
   count         = length(var.ssh_hcloud_key_label) > 0 ? 1 : 0

init.tf

@@ -1,3 +1,17 @@
+resource "hcloud_load_balancer" "cluster" {
+  count = local.has_external_load_balancer ? 0 : 1
+  name  = var.cluster_name
+
+  load_balancer_type = var.load_balancer_type
+  location           = var.load_balancer_location
+  labels             = local.labels
+
+  algorithm {
+    type = var.load_balancer_algorithm_type
+  }
+}
+
+
 resource "null_resource" "first_control_plane" {
   connection {
     user           = "root"
@@ -305,6 +319,7 @@ resource "null_resource" "kustomization" {
   }
 
   depends_on = [
+    hcloud_load_balancer.cluster,
     null_resource.first_control_plane,
     random_password.rancher_bootstrap,
     hcloud_volume.longhorn_volume

output.tf

@@ -29,12 +29,12 @@ output "agents_public_ipv4" {
 
 output "ingress_public_ipv4" {
   description = "The public IPv4 address of the Hetzner load balancer"
-  value       = local.has_external_load_balancer ? module.control_planes[keys(module.control_planes)[0]].ipv4_address : data.hcloud_load_balancer.cluster[0].ipv4
+  value       = local.has_external_load_balancer ? module.control_planes[keys(module.control_planes)[0]].ipv4_address : hcloud_load_balancer.cluster[0].ipv4
 }
 
 output "ingress_public_ipv6" {
   description = "The public IPv6 address of the Hetzner load balancer"
-  value       = (local.has_external_load_balancer || var.load_balancer_disable_ipv6) ? null : data.hcloud_load_balancer.cluster[0].ipv6
+  value       = (local.has_external_load_balancer || var.load_balancer_disable_ipv6) ? null : hcloud_load_balancer.cluster[0].ipv6
 }
 
 output "k3s_endpoint" {