+# 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
+# }
+
+# AWS secret's name which holds the SSL certificate private key's password.
+# Default: "arvados-ssl-privkey-password"
+# ssl_password_secret_name_suffix = "some-name-suffix"
+
+# User for software deployment. Depends on the AMI's distro.
+# Default: "admin"
+# deploy_user = "ubuntu"
+
+# Instance AMI to use for service nodes. Default: latest from Debian 11
+# instance_ami = "ami-0481e8ba7f486bd99"
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