Update loadbalancer example to use stackit sources instead of openstack (#601)

Signed-off-by: Alexander Dahmen <alexander.dahmen@inovex.de>

examples/resources/stackit_loadbalancer/resource.tf

@@ -1,63 +1,52 @@
 # Create a network
-resource "openstack_networking_network_v2" "example" {
-  name = "example-network"
-}
-
-# Create a subnet
-resource "openstack_networking_subnet_v2" "example" {
-  name            = "example-subnet"
-  cidr            = "192.168.0.0/25"
-  dns_nameservers = ["8.8.8.8"]
-  network_id      = openstack_networking_network_v2.example.id
-}
-
-# Get public network
-data "openstack_networking_network_v2" "public" {
-  name = "floating-net"
-}
-
-# Create a floating IP
-resource "openstack_networking_floatingip_v2" "example" {
-  pool = data.openstack_networking_network_v2.public.name
-}
-
-# Get flavor for instance
-data "openstack_compute_flavor_v2" "example" {
-  name = "g1.1"
-}
-
-# Create an instance
-resource "openstack_compute_instance_v2" "example" {
-  depends_on      = [openstack_networking_subnet_v2.example]
-  name            = "example-instance"
-  flavor_id       = data.openstack_compute_flavor_v2.example.id
-  admin_pass      = "example"
-  security_groups = ["default"]
-
-  block_device {
-    uuid                  = "4364cdb2-dacd-429b-803e-f0f7cfde1c24" // Ubuntu 22.04
-    volume_size           = 32
-    source_type           = "image"
-    destination_type      = "volume"
-    delete_on_termination = true
+resource "stackit_network" "example_network" {
+  project_id       = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+  name             = "example-network"
+  ipv4_nameservers = ["8.8.8.8"]
+  ipv4_prefix      = "192.168.0.0/25"
+  labels = {
+    "key" = "value"
   }
+  routed = true
+}
 
-  network {
-    name = openstack_networking_network_v2.example.name
+# Create a network interface
+resource "stackit_network_interface" "nic" {
+  project_id = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+  network_id = stackit_network.example_network.network_id
+}
+
+# Create a public IP and assign it to the network interface
+resource "stackit_public_ip" "public-ip" {
+  project_id           = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+  network_interface_id = stackit_network_interface.nic.network_interface_id
+}
+
+# Create a key pair for accessing the server instance
+resource "stackit_key_pair" "keypair" {
+  name       = "example-key-pair"
+  public_key = chomp(file("path/to/id_rsa.pub"))
+}
+
+# Create a server instance
+resource "stackit_server" "boot-from-volume" {
+  project_id = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+  name       = "example-server"
+  boot_volume = {
+    size        = 64
+    source_type = "image"
+    source_id   = "59838a89-51b1-4892-b57f-b3caf598ee2f" // Ubuntu 24.04
   }
+  availability_zone = "xxxx-x"
+  machine_type      = "g1.1"
+  keypair_name      = stackit_key_pair.keypair.name
 }
 
-# Create a router and attach it to the public network
-resource "openstack_networking_router_v2" "example" {
-  name                = "example-router"
-  admin_state_up      = "true"
-  external_network_id = data.openstack_networking_network_v2.public.id
-}
-
-# Attach the subnet to the router
-resource "openstack_networking_router_interface_v2" "example_interface" {
-  router_id = openstack_networking_router_v2.example.id
-  subnet_id = openstack_networking_subnet_v2.example.id
+# Attach the network interface to the server
+resource "stackit_server_network_interface_attach" "nic-attachment" {
+  project_id           = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+  server_id            = stackit_server.boot-from-volume.server_id
+  network_interface_id = stackit_network_interface.nic.network_interface_id
 }
 
 # Create a load balancer
@@ -71,7 +60,7 @@ resource "stackit_loadbalancer" "example" {
       targets = [
         {
           display_name = "example-target"
-          ip           = openstack_compute_instance_v2.example.network.0.fixed_ip_v4
+          ip           = stackit_network_interface.nic.ipv4
         }
       ]
       active_health_check = {
@@ -93,11 +82,11 @@ resource "stackit_loadbalancer" "example" {
   ]
   networks = [
     {
-      network_id = openstack_networking_network_v2.example.id
+      network_id = stackit_network.example_network.network_id
       role       = "ROLE_LISTENERS_AND_TARGETS"
     }
   ]
-  external_address = openstack_networking_floatingip_v2.example.address
+  external_address = stackit_public_ip.public-ip.ip
   options = {
     private_network_only = false
   }