auto-deploy-demo/server/config/index.js

const config = {
  port: parseInt(process.env.PORT, 10) || 8888,
  
  baseDomain: process.env.BASE_DOMAIN || '',
  
  projectPortStart: parseInt(process.env.PROJECT_PORT_START, 10) || 9000,
  projectPortEnd: parseInt(process.env.PROJECT_PORT_END, 10) || 9100,
  
  getProjectUrl(port, projectPath = '') {
    let baseUrl;
    if (this.baseDomain) {
      baseUrl = `http://${this.baseDomain}:${port}`;
    } else {
      baseUrl = `http://localhost:${port}`;
    }
    
    if (projectPath) {
      return `${baseUrl}${projectPath}`;
    }
    return baseUrl;
  },
  
  getBaseUrl() {
    if (this.baseDomain) {
      return `http://${this.baseDomain}`;
    }
    return `http://localhost:${this.port}`;
  },
  
  isProduction() {
    return !!this.baseDomain;
  }
};

module.exports = config;