samples/cartridge-groups/esb-php-group.json

{
    "name": "esb-php-group",
    "cartridges": [
        "esb",
        "php"
    ],
    "dependencies": {
        "startupOrders": [
            {
                "aliases": [
                    "cartridge.my-esb",
                    "cartridge.my-php"
                ]
            }
        ],
        "terminationBehaviour": "terminate-none"
    }
}