6.3. 配置故障切换

var hosts = ["alpha.example.com", "beta.example.com"];
var index = -1;

function failover_fn() {
    index += 1;

    if (index == hosts.length) index = 0;

    return {host: hosts[index].hostname};
};

var opts = {
    host: "example.com",
    connection_details: failover_fn
}

container.connect(opts);