+# Set the instance type for your nodes. Default: m5a.large
+# instance_type = {
+# default = "m5a.xlarge"
+# controller = "c5a.4xlarge"
+# }
+
+# Set the volume size (in GiB) per service node.
+# Default: 100 for controller, 20 the rest.
+# NOTE: The service node will need to be rebooted after increasing its volume's
+# size.
+# instance_volume_size = {
+# default = 20
+# controller = 300
+# }