var Redis = require('ioredis');

var cluster = new Redis.Cluster([{
  host: '127.0.0.1',
  port: 7000
}, {
  host: '127.0.0.1',
  port: 7001
}, {
  host: '127.0.0.1',
  port: 7002
}]);

console.log(cluster.nodes());

Cluster {
  domain: null,
  _events: {},
  _eventsCount: 0,
  _maxListeners: undefined,
  slots: [],
  retryAttempts: 0,
  delayQueue: DelayQueue { queues: {}, timeouts: {} },
  offlineQueue:
   Denque {
     _head: 0,
     _tail: 0,
     _capacityMask: 3,
     _list: [ <4 empty items> ] },
  isRefreshing: false,
  connectionEpoch: 1,
  options:
   { showFriendlyErrorStack: false,
     clusterRetryStrategy: [Function: clusterRetryStrategy],
     enableOfflineQueue: true,
     enableReadyCheck: true,
     scaleReads: 'master',
     maxRedirections: 16,
     retryDelayOnFailover: 100,
     retryDelayOnClusterDown: 100,
     retryDelayOnTryAgain: 100,
     slotsRefreshTimeout: 1000,
     slotsRefreshInterval: 5000,
     dnsLookup: [Function: lookup] },
  scriptsSet: {},
  startupNodes:
   [ { host: '127.0.0.1', port: 7000 },
     { host: '127.0.0.1', port: 7001 },
     { host: '127.0.0.1', port: 7002 } ],
  connectionPool:
   ConnectionPool {
     domain: null,
     _events:
      { '-node': [Array],
        '+node': [Array],
        drain: [Function],
        nodeError: [Function] },
     _eventsCount: 4,
     _maxListeners: undefined,
     redisOptions: undefined,
     nodes: { all: {}, master: {}, slave: {} },
     specifiedOptions: {} },
  subscriber:
   ClusterSubscriber {
     connectionPool:
      ConnectionPool {
        domain: null,
        _events: [Object],
        _eventsCount: 4,
        _maxListeners: undefined,
        redisOptions: undefined,
        nodes: [Object],
        specifiedOptions: {} },
     emitter: [Circular],
     started: false,
     subscriber: null },
  status: 'connecting' }