django + celery(守护进程部署) + sendMail 无法发送邮件问题

django+celery+redis+send_mail 来发送邮件

当直接 console 启动 django 项目和 celery 时候，既如下情况时候可以正常邮件发送：

启动 django

[root@vultrvpn vpnWeb]# python run.py 
Performing system checks...

System check identified no issues (0 silenced).
March 17, 2017 - 11:09:42
Django version 1.10.6, using settings 'vpnWeb.settings'
Starting development server at http://0.0.0.0:9000/
Quit the server with CONTROL-C.
[17/Mar/2017 11:11:51] "GET /admin/ HTTP/1.0" 200 6274
[17/Mar/2017 11:11:54] "GET /admin/app/userpay/ HTTP/1.0" 200 7052
[17/Mar/2017 11:11:55] "GET /admin/jsi18n/ HTTP/1.0" 200 3217
[17/Mar/2017 11:12:00] "POST /admin/app/userpay/ HTTP/1.0" 200 3168

启动 celery

[root@vultrvpn vpnWeb]# celery -A vpnWeb worker -l info
/usr/lib/python2.7/site-packages/celery/platforms.py:793: RuntimeWarning: You're running the worker with superuser privileges: this is
absolutely not recommended!

Please specify a different user using the -u option.

User information: uid=0 euid=0 gid=0 egid=0

  uid=uid, euid=euid, gid=gid, egid=egid,
 
 -------------- celery@vultrvpn v4.0.2 (latentcall)
---- **** ----- 
--- * ***  * -- Linux-4.10.2-1.el7.elrepo.x86_64-x86_64-with-centos-7.3.1611-Core 2017-03-17 11:09:32
-- * - **** --- 
- ** ---------- [config]
- ** ---------- .> app:         vpnWeb:0x234a450
- ** ---------- .> transport:   redis://localhost:6379/0
- ** ---------- .> results:     redis://localhost:6379/0
- *** --- * --- .> concurrency: 1 (prefork)
-- ******* ---- .> task events: OFF (enable -E to monitor tasks in this worker)
--- ***** ----- 
 -------------- [queues]
                .> celery           exchange=celery(direct) key=celery
                

[tasks]
  . app.emailTask.sendEmal
  . vpnWeb.celery.debug_task

[2017-03-17 11:09:32,548: INFO/MainProcess] Connected to redis://localhost:6379/0
[2017-03-17 11:09:32,557: INFO/MainProcess] mingle: searching for neighbors
[2017-03-17 11:09:33,571: INFO/MainProcess] mingle: all alone
[2017-03-17 11:09:33,578: INFO/MainProcess] celery@vultrvpn ready.
[2017-03-17 11:14:55,514: INFO/MainProcess] Received task: app.emailTask.sendEmal[618eb32c-0c34-4cf7-9c0f-9020f6d72242]  
[2017-03-17 11:14:58,385: INFO/PoolWorker-1] Task app.emailTask.sendEmal[618eb32c-0c34-4cf7-9c0f-9020f6d72242] succeeded in 2.868786066s: None

当项目调用到 send_mail 时候可以正常进行邮件发送

发送邮件代码

from django.core.mail import send_mail
import time
from time import sleep

@celery_app.task
def sendEmal(tomail):
    send_mail(
        u'账号信息',
        u'发送目标邮箱',
        '[email protected]',
        [tomail],
        fail_silently=False,
    )

但当用 supervisor 进行守护进程部署 django 以及 celery 也部署了守护进程(按以下方式部署守护进程)

http://docs.celeryproject.org/en/latest/userguide/daemonizing.html#daemonizing 拷贝这个文件（ https://github.com/celery/celery/blob/3.1/extra/generic-init.d/celeryd ）内容到 /etc/init.d/celeryd

邮件就无法发送了。

守护进程时候 celery 调用发送邮件 task 的时候打印日志内容：

[2017-03-17 10:58:30,190: INFO/MainProcess] mingle: all alone
[2017-03-17 10:58:30,197: INFO/MainProcess] djangoCelery1@vultrvpn ready.
[2017-03-17 10:58:49,185: INFO/MainProcess] Received task: app.emailTask.sendEmal[1c9ff6d0-2962-42ce-ba35-151c73980ffb]  
[2017-03-17 11:06:51,331: INFO/MainProcess] Received task: app.emailTask.sendEmal[7b71fa6c-0554-44c3-a030-20f14885f001]  
[2017-03-17 11:07:44,339: INFO/MainProcess] Connected to redis://localhost:6379/0
[2017-03-17 11:07:44,347: INFO/MainProcess] mingle: searching for neighbors
[2017-03-17 11:07:45,361: INFO/MainProcess] mingle: all alone
[2017-03-17 11:07:45,367: INFO/MainProcess] djangoCelery1@vultrvpn ready.
[2017-03-17 11:30:44,493: INFO/MainProcess] Connected to redis://localhost:6379/0
[2017-03-17 11:30:44,499: INFO/MainProcess] mingle: searching for neighbors
[2017-03-17 11:30:45,526: INFO/MainProcess] mingle: all alone
[2017-03-17 11:30:45,532: INFO/MainProcess] djangoCelery1@vultrvpn ready.
[2017-03-17 11:31:04,372: INFO/MainProcess] Received task: app.emailTask.sendEmal[680f3ae0-a85f-4b7c-a9d7-9c64d1788aa2]  

后有经过测试， django 部署守护进程， celery 用 console 启动，就可以正常发送邮件。

那么现在要怎么调整才能在 celery 使用守护进程部署的时候也能进行邮件发送的？