在AWS Elastic Beanstalk上运行Cron作业-Django [英] Running cron jobs on aws elastic beanstalk - django

问题描述

我无法执行我的cron作业。

I'm having trouble getting my cron jobs to execute.

设置：

Django-1.9

Django - 1.9

Elastic beanstalk-运行Python 3.4的64位Amazon Linux 2016.03 v2.1.3

Elastic beanstalk - 64bit Amazon Linux 2016.03 v2.1.3 running Python 3.4

我已经尝试过这样做到目前为止，有几种方法：

I've tried doing this a couple of ways so far:

1. 使用cron.yaml文件：
   没有碰其他任何东西-只是在我的项目根文件夹中添加了一个cron.yaml文件

1. Using a cron.yaml file: Didn't touch anything else - just added a cron.yaml file to my project root folder

version: 1
cron:
  - name: "test"
url: "http://website.com/workers/test"
schedule: "*/10 * * * *"

使用容器命令和单独的cron.txt文件：

Using a container command and a separate cron.txt file:

在我的.ebextensions / development.config文件中添加了这一行

Added this line in my .ebextensions/development.config file

05_some_cron:
    command: "cat .ebextensions/crontab.txt > /etc/cron.d/crontab && chmod 644 /etc/cron.d/crontab"
    leader_only: true

和.ebextensions / crontab.txt

and in .ebextensions/crontab.txt

*/10 * * * * source /opt/python/run/venv/bin/activate && python mysite/manage.py test

在两种情况下，应用均成功部署。

The app deploys successfully in both cases.

1. 手动（在浏览器中）转到 http：/ /website.com/workers/test 具有
   的预期结果（在第一种情况下）。


2. 添加 source / opt / python / run / venv / bin / activate&& python mysite / manage.py test 作为管理命令，在部署时会运行正确的脚本。

1. Manually (in a browser) going to http://website.com/workers/test has the intended outcome (in the first case).
2. Adding source /opt/python/run/venv/bin/activate && python mysite/manage.py test as a management command runs the correct script once on deploying.

日志没有在该URL上显示任何GETS。

The logs do not show any GETS on that url.

我在做什么错？我是否错过了过程中的某些步骤或EBS上的某些设置步骤？

What am I doing wrong? Am I missing some step of the process or some setup step on EBS?

还有什么最佳方法可以为EBS上托管的Django应用程序运行cron作业？ -django应用程序可以像尝试2一样从命令行运行管理命令，也可以像尝试1那样通过扩展GET或POST URL来运行管理命令。

Also what is the best ways to run cron jobs for django applications hosted on EBS? - django apps can run management commands either from the command line as in attempt 2 or by extending a GET or POST url as in attempt 1.

推荐答案

2018更新，使用 Django 2.0.6 + AWS ElasticBeanstalk + Cronjob

2018 Update using Django 2.0.6 + AWS ElasticBeanstalk + Cronjob

我发现我需要使用源/ opt / python / current / env导出AWS环境变量，以防止manage.py引发错误 SECRET_KEY设置不能为空。

I found I needed to export the AWS environment variables using source /opt/python/current/env to prevent manage.py from throwing the error "The SECRET_KEY setting must not be empty".

这是因为我已将Django秘密密钥放置在os.environ中用于beantalk，默认情况下，shell / cron无法访问它。

This is because I had placed my Django Secret key in the os.environ for beanstalk which it seems is not accessible by shell/cron by default.

请参见 https： //forums.aws.amazon.com/thread.jspa?threadID=108465

我最后的cron作业.txt脚本如下。 （process_emails是我自己的 django管理功能，myjob.log是记录函数调用输出的位置）。

My final cron job .txt script was as follows. (process_emails is my own django management function, myjob.log is where the output of the function call is logged).

*/15 * * * * source /opt/python/run/venv/bin/activate && cd /opt/python/current/app/ && source /opt/python/current/env && python manage.py process_emails >> /var/log/myjob.log 2>&1

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