code: function askForServiceDiscovery() {
      if (this.regenerate) return;
  
      const done = this.async();
  
      const serviceDiscoveryEnabledApps = [];
      this.appConfigs.forEach((appConfig, index) => {
          if (appConfig.serviceDiscoveryType) {
              serviceDiscoveryEnabledApps.push({
                  baseName: appConfig.baseName,
                  serviceDiscoveryType: appConfig.serviceDiscoveryType
              });
          }
      });
  
      if (serviceDiscoveryEnabledApps.length === 0) {
          this.serviceDiscoveryType = false;
          done();
          return;
      }
  
      if (serviceDiscoveryEnabledApps.every(app => app.serviceDiscoveryType === 'consul')) {
          this.serviceDiscoveryType = 'consul';
          this.log(chalk.green('Consul detected as the service discovery and configuration provider used by your apps'));
          done();
      } else if (serviceDiscoveryEnabledApps.every(app => app.serviceDiscoveryType === 'eureka')) {
          this.serviceDiscoveryType = 'eureka';
          this.log(chalk.green('JHipster registry detected as the service discovery and configuration provider used by your apps'));
          done();
      } else {
          this.log(chalk.yellow('Unable to determine the service discovery and configuration provider to use from your apps configuration.'));
          this.log('Your service discovery enabled apps:');
          serviceDiscoveryEnabledApps.forEach(app => {
              this.log(` -${app.baseName} (${app.serviceDiscoveryType})`);
          });
  
          const prompts = [
              {
                  type: 'list',
                  name: 'serviceDiscoveryType',
                  message: 'Which Service Discovery registry and Configuration server would you like to use ?',
                  choices: [
                      {
                          value: 'eureka',
                          name: 'JHipster Registry'
                      },
                      {
                          value: 'consul',
                          name: 'Consul'
                      },
                      {
                          value: false,
                          name: 'No Service Discovery and Configuration'
                      }
                  ],
                  default: 'eureka'
              }
          ];
  
          this.prompt(prompts).then(props => {
              this.serviceDiscoveryType = props.serviceDiscoveryType;
              done();
          });
      }
  }
docs: Ask For Service Discovery