Setup resource and data sources and refactor controller setup

IaC/images.tf

@@ -0,0 +1,5 @@
+# Default os version
+data "openstack_images_image_v2" "debian12image" {
+  name        = "debian-12" # Name of image to be used
+  most_recent = true
+}

IaC/network.tf

@@ -0,0 +1,3 @@
+data "openstack_networking_network_v2" "public" {
+  name = "public" # Name of network to use.
+}

IaC/nodes.tf

@@ -1,26 +1,59 @@
+
+#
+# Controller node resources
+#
+
+resource "openstack_networking_port_v2" "kubeport" {
+  name                = "${var.controller_name}${count.index+1}-${replace(var.dns_suffix,".","-")}-port"
+  # We create as many ports as there are instances created
+  count               =  var.controller_instance_count
+  network_id          = data.openstack_networking_network_v2.public.id
+  # A list of security group ID
+  security_group_ids  = [ 
+                          data.openstack_networking_secgroup_v2.sshfromjumphosts.id, 
+                          data.openstack_networking_secgroup_v2.allegress.id,
+                          resource.openstack_networking_secgroup_v2.microk8s.id
+                        ]
+  admin_state_up      = "true"
+}
+
+resource "openstack_blockstorage_volume_v3" "kubecvolumeboot" {
+  count                = var.controller_instance_count # size of cluster
+  name                 = "${var.controller_name}${count.index+1}-${replace(var.dns_suffix,".","-")}-vol"
+  description          = "OS volume for kubernetes control node ${count.index + 1}"
+  size                 = 100
+  image_id             = data.openstack_images_image_v2.debian12image.id
+  enable_online_resize = true # Allow us to resize volume while attached.
+}
+
 resource "openstack_compute_instance_v2" "controller-nodes" {
   count           = var.controller_instance_count
-  name            = "${var.controller_name}-${count.index}.${var.dns_suffix}"
+  name            = "${var.controller_name}${count.index+1}.${var.dns_suffix}"
   flavor_name     = "${var.controller_instance_type}"
   key_pair        = "${var.keyname}"
-  security_groups = ["https", "microk8s", "Allow SSH from SUNET jumphosts", "Allow ssh from the world"]
-  
-
+  security_groups = [
+                       data.openstack_networking_secgroup_v2.sshfromjumphosts.name,
+                       data.openstack_networking_secgroup_v2.allegress.name,
+                       resource.openstack_networking_secgroup_v2.microk8s.name
+                    ]
   block_device {
-    uuid                  = "5d24aca9-11be-4de1-9770-4a097d68f361"
-    source_type           = "image"
-    volume_size           = 20
-    boot_index            = 0
+    uuid             = resource.openstack_blockstorage_volume_v3.kubecvolumeboot[count.index].id
+    source_type      = "volume"
     destination_type = "volume"
-    delete_on_termination = true
+    boot_index       = 0
   }
   scheduler_hints {
     group = openstack_compute_servergroup_v2.controllers.id
   }
   network {
-    name = "public"
+    port   = resource.openstack_networking_port_v2.kubeport[count.index].id
   }
 }
+
+#
+# Worker node resources
+#
+
 resource "openstack_compute_instance_v2" "worker-nodes" {
   count           = var.worker_instance_count
   name            = "${var.worker_name}-${count.index}.${var.dns_suffix}"

IaC/securitygroups.tf

@@ -1,3 +1,17 @@
+# Datasource of sunet ssh-from-jumphost security group.
+data "openstack_networking_secgroup_v2" "sshfromjumphosts" {
+  name = "ssh-from-jumphost"
+}
+
+data "openstack_networking_secgroup_v2" "allegress" {
+  name = "allegress"
+}
+
+resource "openstack_networking_secgroup_v2" "microk8s" {
+  name        = "microk8s"
+  description = "Traffic to allow between microk8s hosts"
+}
+
 resource "openstack_networking_secgroup_rule_v2" "microk8s_rule1" {
   #We never know where Richard is, so allow from all of the known internet
   direction         = "ingress"

IaC/servergroups.tf

@@ -7,7 +7,3 @@ resource "openstack_compute_servergroup_v2" "controllers" {
   policies = ["anti-affinity"]
 }
 
-resource "openstack_networking_secgroup_v2" "microk8s" {
-  name        = "microk8s"
-  description = "Traffic to allow between microk8s hosts"
-}

IaC/vars.tf

@@ -18,18 +18,19 @@ variable "controller_instance_count" {
 variable "controller_instance_type" {
   default = "b2.c2r4"
 }
-variable "monitor_instance_type" {
-  default = "b2.c2r4"
-}
+
 variable "worker_instance_type" {
   default = "b2.c4r16"
 }
+
 variable "worker_name" {
-  default = "internal-sto4-test-k8sw"
+  default = "k8sw"
 }
+
 variable "controller_name" {
-  default = "internal-sto4-test-k8sc"
+  default = "k8sc"
 }
+
 variable "dns_suffix" {
-  default = "rut.sunet.se"
+  default = "matrix-test.sunet.se"
 }