Checklist

• [ ] I have included the output of celery -A proj report in the issue.
  software -> celery:4.0.2 (latentcall) kombu:4.0.2 py:3.6.0
  billiard:3.5.0.2 py-amqp:2.1.4
  platform -> system:Darwin arch:64bit imp:CPython
  loader -> celery.loaders.app.AppLoader
  settings -> transport:amqp results:django-db).
• [ ] I have verified that the issue exists against the master branch of Celery.

Steps to reproduce

1 .deploy_tomcat2.py
`from .AnsibleApi import CallApi

def django_process(jira_num):
server = '10.10.51.30'
name = 'abc'
port = 11011
code = 'efs'
jdk = '1.12.13'
jvm = 'xxxx'

if str.isdigit(jira_num):
    # import pdb
    # pdb.set_trace()
    call = CallApi(server,name,port,code,jdk,jvm)
    return call.run_task()

`

1. AnsibleApi.py
   `#!/usr/bin/env python

-- coding: utf-8 --

import logging
from .Logger import Logger
from django.conf import settings
from collections import namedtuple
from ansible.parsing.dataloader import DataLoader
from ansible.vars import VariableManager
from ansible.inventory import Inventory
from ansible.playbook.play import Play
from ansible.executor.task_queue_manager import TaskQueueManager
from ansible.plugins.callback import CallbackBase

Log = Logger('/tmp/auto_deploy_tomcat.log',logging.INFO)

class ResultCallback(CallbackBase):
def __init__(self, args, *kwargs):
super(ResultCallback ,self).__init__(args, *kwargs)
self.host_ok = {}
self.host_unreachable = {}
self.host_failed = {}

def v2_runner_on_unreachable(self, result):
    self.host_unreachable[result._host.get_name()] = result

def v2_runner_on_ok(self, result, *args, **kwargs):
    self.host_ok[result._host.get_name()] = result

def v2_runner_on_failed(self, result, *args, **kwargs):
    self.host_failed[result._host.get_name()] = result

class CallApi(object):
user = settings.SSH_USER
ssh_private_key_file = settings.SSH_PRIVATE_KEY_FILE
results_callback = ResultCallback()
Options = namedtuple('Options',
['connection', 'module_path', 'private_key_file', 'forks', 'become', 'become_method',
'become_user', 'check'])

def __init__(self,ip,name,port,code,jdk,jvm):
    self.ip = ip
    self.name = name
    self.port = port
    self.code = code
    self.jdk = jdk
    self.jvm = jvm
    self.results_callback = ResultCallback()
    self.results_raw = {}

def _gen_user_task(self):
    tasks = []
    deploy_script = 'autodeploy/abc.sh'
    dst_script = '/tmp/abc.sh'
    cargs = dict(src=deploy_script, dest=dst_script, owner=self.user, group=self.user, mode='0755')
    args = "%s %s %d %s %s '%s'" % (dst_script, self.name, self.port, self.code, self.jdk, self.jvm)
    tasks.append(dict(action=dict(module='copy', args=cargs),register='shell_out'))
    tasks.append(dict(action=dict(module='debug', args=dict(msg='{{shell_out}}'))))
    # tasks.append(dict(action=dict(module='command', args=args)))
    # tasks.append(dict(action=dict(module='command', args=args), register='result'))
    # tasks.append(dict(action=dict(module='debug', args=dict(msg='{{result.stdout}}'))))
    self.tasks = tasks

def _set_option(self):
    self._gen_user_task()

    self.variable_manager = VariableManager()
    self.loader = DataLoader()
    self.options = self.Options(connection='smart', module_path=None, private_key_file=self.ssh_private_key_file, forks=None,
                                become=True, become_method='sudo', become_user='root', check=False)
    self.inventory = Inventory(loader=self.loader, variable_manager=self.variable_manager, host_list=[self.ip])
    self.variable_manager.set_inventory(self.inventory)

    play_source = dict(
    name = "auto deploy tomcat",
        hosts = self.ip,
        remote_user = self.user,
        gather_facts='no',
        tasks = self.tasks
    )
    self.play = Play().load(play_source, variable_manager=self.variable_manager, loader=self.loader)

def run_task(self):
    self.results_raw = {'success':{}, 'failed':{}, 'unreachable':{}}
    tqm = None
    from celery.contrib import rdb
    rdb.set_trace()
    self._set_option()
    try:
        tqm = TaskQueueManager(
            inventory=self.inventory,
            variable_manager=self.variable_manager,
            loader=self.loader,
            options=self.options,
            passwords=None,
            stdout_callback=self.results_callback,
        )
        result = tqm.run(self.play)
    finally:
        if tqm is not None:
            tqm.cleanup()

    for host, result in self.results_callback.host_ok.items():
        self.results_raw['success'][host] = result._result

    for host, result in self.results_callback.host_failed.items():
        self.results_raw['failed'][host] = result._result

    for host, result in self.results_callback.host_unreachable.items():
        self.results_raw['unreachable'][host]= result._result
    Log.info("result is :%s" % self.results_raw)
    return self.results_raw

3.tasks.py from __future__ import absolute_import, unicode_literals
from celery import shared_task
from .deploy_tomcat2 import django_process

rom celery.contrib import rdb

@shared_task
def deploy(num):
#return 'hello world {0}'.format(num)
#rdb.set_trace()

return django_process(num)`

Expected behavior

In django console :python manage.py shell , I can use deploy('123') ,code call ansibleApi to copy abc.sh to dst server sucessfully.
But I didn't work when I used 'deploy.apply_async(args=['1334'], queue='queue.ops.deploy', routing_key='ops.deploy')'

I searched a few day ,still doesn't work out .

Actual behavior

AnsibleApi return empty dict :{'success': {}, 'failed': {}, 'unreachable': {}}