updates terraform example

terraform/lab1/lab1.tf

 # Define CloudComp group number
 variable "group_number" {
   type = string
-  default = "20"
+  default = "<number of your group here, private-cloud is only reachable via vpn>"
 }
 
 ## OpenStack credentials can be used in a more secure way by using
@@ -12,15 +12,17 @@ variable "group_number" {
 
 # Define OpenStack credentials, project config etc.
 locals {
-  auth_url      = "https://private-cloud.informatik.hs-fulda.de:5000/v3"
+  auth_url        = "https://10.32.4.182:5000/v3"
   user_name       = "CloudComp${var.group_number}"
   user_password   = "<password of your group here, private-cloud is only reachable via vpn>"
   tenant_name     = "CloudComp${var.group_number}"
   #network_name    = "CloudComp${var.group_number}-net"
   router_name     = "CloudComp${var.group_number}-router"
-  image_name    = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+  image_name      = "ubuntu-22.04-jammy-x86_64"
   flavor_name     = "m1.small"
   region_name     = "RegionOne"
+  floating_net    = "ext_net"
+  dns_nameservers = [ "10.33.16.100" ]
 }
 
 # Define OpenStack provider
@@ -29,7 +31,9 @@ required_version = ">= 0.14.0"
   required_providers {
     openstack = {
       source  = "terraform-provider-openstack/openstack"
-      version = ">= 1.47.0"
+      # last version before 2.0.0, shows octavia/neutron lbaas deprecation warnings
+      # "~> 1.54.1"
+      version = ">= 2.0.0"
     }
   }
 }
@@ -41,7 +45,8 @@ provider "openstack" {
   password    = local.user_password
   auth_url    = local.auth_url
   region      = local.region_name
-  use_octavia = true
+  # due to currenty missing valid certificate
+  insecure    = true
 }
 
 
@@ -108,6 +113,7 @@ resource "openstack_networking_subnet_v2" "terraform-subnet-1" {
   network_id      = openstack_networking_network_v2.terraform-network-1.id
   cidr            = "192.168.255.0/24"
   ip_version      = 4
+  dns_nameservers = local.dns_nameservers
 }
 
 data "openstack_networking_router_v2" "router-1" {
@@ -165,12 +171,8 @@ resource "openstack_compute_instance_v2" "terraform-instance-1" {
 #
 ###########################################################################
 resource "openstack_networking_floatingip_v2" "fip_1" {
-  pool    = "public1"
-}
-
-resource "openstack_compute_floatingip_associate_v2" "fip_1_assoc" {
-  floating_ip = openstack_networking_floatingip_v2.fip_1.address
-  instance_id = openstack_compute_instance_v2.terraform-instance-1.id
+  pool    = local.floating_net
+  port_id = openstack_compute_instance_v2.terraform-instance-1.network[0].port
 }
 
 output "vip_addr" {

terraform/lab4-scale-out-lb/lab4.tf

 # Define CloudComp group number
 variable "group_number" {
   type = string
-  default = "20"
+  default = "<number of your group here, private-cloud is only reachable via vpn>"
 }
 
 ## OpenStack credentials can be used in a more secure way by using
-## cloud.yaml from https://private-cloud.informatik.hs-fulda.de/project/api_access/clouds.yaml/
+## cloud.yaml from https://private-cloud2.informatik.hs-fulda.de/project/api_access/clouds.yaml/
 
 # or by using env vars exported from openrc here,
 # e.g., using 'export TF_VAR_os_password=$OS_PASSWORD'
 
 # Define OpenStack credentials, project config etc.
 locals {
-  auth_url      = "https://private-cloud.informatik.hs-fulda.de:5000/v3"
+  auth_url      = "https://10.32.4.182:5000/v3"
   user_name     = "CloudComp${var.group_number}"
   user_password = "<password of your group here, private-cloud is only reachable via vpn>"
   tenant_name   = "CloudComp${var.group_number}"
   #network_name  = "CloudComp${var.group_number}-net"
   router_name   = "CloudComp${var.group_number}-router"
-  image_name    = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+  image_name    = "ubuntu-22.04-jammy-x86_64"
   flavor_name   = "m1.small"
   region_name   = "RegionOne"
+  dns_nameservers = [ "10.33.16.100" ]
 }
 
 # Define OpenStack provider
@@ -29,7 +30,9 @@ required_version = ">= 0.14.0"
   required_providers {
     openstack = {
       source  = "terraform-provider-openstack/openstack"
-      version = ">= 1.47.0"
+      # last version before 2.0.0, shows octavia/neutron lbaas deprecation warnings
+      # "~> 1.54.1"
+      version = ">= 2.0.0"
     }
   }
 }
@@ -41,7 +44,8 @@ provider "openstack" {
   password    = local.user_password
   auth_url    = local.auth_url
   region      = local.region_name
-  use_octavia = true
+  # due to currenty missing valid certificate
+  insecure    = true
 }
 
 
@@ -107,6 +111,7 @@ resource "openstack_networking_subnet_v2" "terraform-subnet-1" {
   name       = "my-terraform-subnet-1"
   network_id = openstack_networking_network_v2.terraform-network-1.id
   cidr       = "192.168.255.0/24"
+  dns_nameservers = local.dns_nameservers
   ip_version = 4
 }
 
@@ -250,7 +255,7 @@ resource "openstack_lb_monitor_v2" "monitor_1" {
 #
 ###########################################################################
 resource "openstack_networking_floatingip_v2" "fip_1" {
-  pool    = "public1"
+  pool    = "ext_net"
   port_id = openstack_lb_loadbalancer_v2.lb_1.vip_port_id
 }