open-consul/ui/packages/consul-ui/app/components/consul/node-identity/template/index.hbs

{{#if (env "CONSUL_NSPACES_ENABLED")}}
namespace "default" {
  node "{{@name}}" {
	  policy = "write"
  }
}
namespace_prefix "" {
  service_prefix "" {
	  policy = "read"
  }
}
{{else}}
node "{{@name}}" {
	policy = "write"
}
service_prefix "" {
	policy = "read"
}
{{/if}}