https://github.com/apocas/dockerode/issues/343

lib/docker.js

@@ -21,9 +21,18 @@ var EventEmitter = require('events').EventEmitter,
 var Docker = function(opts) {
   if (!(this instanceof Docker)) return new Docker(opts);
 
-  this.modem = new Modem(opts);
+  var plibrary = global.Promise;
+
+  if(opts && opts.Promise) {
+    plibrary = opts.Promise;
+
+    if(Object.keys(opts).length === 1) {
+      opts = undefined;
+    }
+  }
 
-  this.modem.Promise = opts && opts.Promise || global.Promise;
+  this.modem = new Modem(opts);
+  this.modem.Promise = plibrary;
 };
 
 /**

package.json

@@ -1,7 +1,7 @@
 {
   "name": "dockerode",
   "description": "Docker Remote API module.",
-  "version": "2.3.4",
+  "version": "2.3.5",
   "author": "Pedro Dias <[email protected]>",
   "maintainers": [
     "apocas <[email protected]>"

test/docker.js

@@ -1,9 +1,13 @@
 /*jshint -W030 */
 
-var expect = require('chai').expect;
+var Bluebird = require('bluebird'),
+  expect = require('chai').expect,
+  Docker = require('../lib/docker');
+
 var docker = require('./spec_helper').docker;
 var dockert = require('./spec_helper').dockert;
 
+
 var testImage = 'ubuntu:14.04';
 var testVolume = {
   "Name": "tardis",
@@ -13,6 +17,21 @@ var testVolume = {
 
 describe("#docker", function() {
 
+  describe("#constructors", function()  {
+    it("should work without options", function(done) {
+      var d = new Docker();
+      expect(d.modem.socketPath).not.to.be.null;
+      done();
+    });
+    it("should not send Promise options to docker-modem", function(done) {
+      var d = new Docker({
+        'Promise': Bluebird
+      });
+      expect(d.modem.socketPath).not.to.be.null;
+      done();
+    });
+  });
+
   describe("#checkAuth", function() {
     it("should fail auth", function(done) {
       this.timeout(15000);