SSL 证书重载

[bruce48x]

HybriConnector 加载 ssl 证书后不会自动刷新，现在加上文件监听，就可以不重启服务器来刷新 SSL 证书。
给 connectorConfig 增加 sslWatcher 即可
代码：
app.ts

const sslKeyPath = './config/server.key';
const sslCertPath = './config/server.crt';

function readCertsSync() {
    return {
        key: fs.readFileSync(sslKeyPath),
        cert: fs.readFileSync(sslCertPath)
    }
}

// app configuration
app.configure('production|development', 'connector', function () {
    const sslOpt:tls.SecureContextOptions = readCertsSync();
    app.set('connectorConfig',
        {
            connector: pinus.connectors.hybridconnector,
            heartbeat: 3,
            useDict: true,
            useProtobuf: true,
            ssl: sslOpt,
            sslWatcher: (cb) => {
                fs.watch(sslKeyPath, () => {
                    cb(readCertsSync());
                });
            }
        });
});