Updated UpCloud terraform script to use private network and dynamic (#7779)

additional disks

contrib/terraform/upcloud/sample-inventory/cluster.tfvars

@@ -2,20 +2,21 @@
 zone     = "fi-hel1"
 username = "ubuntu"
 
-inventory_file = "inventory.ini"
+# Prefix to use for all resources to separate them from other resources
+prefix = "kubespray"
 
-#  A valid domain name, e.g. host.example.com. The maximum length is 128 characters.
-hostname = "example.com"
+inventory_file = "inventory.ini"
 
 #  Set the operating system using UUID or exact name
 template_name = "Ubuntu Server 20.04 LTS (Focal Fossa)"
+
 ssh_public_keys = [
   # Put your public SSH key here
   "ssh-rsa I-did-not-read-the-docs",
   "ssh-rsa I-did-not-read-the-docs 2",
 ]
 
-check list of available plan https://developers.upcloud.com/1.3/7-plans/
+# check list of available plan https://developers.upcloud.com/1.3/7-plans/
 machines = {
   "master-0" : {
     "node_type" : "master",
@@ -25,6 +26,7 @@ machines = {
     "mem" : "4096"
     # The size of the storage in GB
     "disk_size" : 250
+    "additional_disks": {}
   },
   "worker-0" : {
     "node_type" : "worker",
@@ -34,6 +36,16 @@ machines = {
     "mem" : "4096"
     # The size of the storage in GB
     "disk_size" : 250
+    "additional_disks": {
+      # "some-disk-name-1": {
+      #   "size": 100,
+      #   "tier": "maxiops",
+      # },
+      # "some-disk-name-2": {
+      #   "size": 100,
+      #   "tier": "maxiops",
+      # }
+    }
   },
   "worker-1" : {
     "node_type" : "worker",
@@ -43,6 +55,16 @@ machines = {
     "mem" : "4096"
     # The size of the storage in GB
     "disk_size" : 250
+    "additional_disks": {
+      # "some-disk-name-1": {
+      #   "size": 100,
+      #   "tier": "maxiops",
+      # },
+      # "some-disk-name-2": {
+      #   "size": 100,
+      #   "tier": "maxiops",
+      # }
+    }
   },
   "worker-2" : {
     "node_type" : "worker",
@@ -52,5 +74,15 @@ machines = {
     "mem" : "4096"
     # The size of the storage in GB
     "disk_size" : 250
+    "additional_disks": {
+      # "some-disk-name-1": {
+      #   "size": 100,
+      #   "tier": "maxiops",
+      # },
+      # "some-disk-name-2": {
+      #   "size": 100,
+      #   "tier": "maxiops",
+      # }
+    }
   }
 }