test2.json

{
    "name": "test2",
    "default_attributes": {
        "firewall": {
            "rules": [
                {
                    "25": { "port": "25", "protocol": "tcp" }
                }
            ]
        }
    },
    "json_class": "Chef::Role",
    "env_run_lists": {
    },
    "run_list": [
        "recipe[test2]"
    ],
    "description": "test2",
    "chef_type": "role",
    "override_attributes": {
    }
}