WebCron: Crontab on Rails

• A rails web application to schedule job, reply on linux crontab
• The MIT License (MIT) Copyright (c) 2017 Genghui Luo
• Dependencies:
  • ruby, >= 2.4.0
  • rails, >= 5.0.2
  • MariaDB, >= 5.5.52
  • node, >= 6.10.1

deployment

> git@github.com:genghuiluo/webcron.git
> cd  ./webcron
> bash setup.bash

# config PATH in crontab
> crontab -e
# basiclly, you can add "PATH=$PATH:/usr/bin/:/usr/local/bin"

> rails s
# you can also specify domain/port with -b/-p option
# e.g. rails s -b my_webcron.com -p 8080

Access http://localhost:3000 (default) in your browser, You will see this login page first.

usage

A) login as common user, manage jobs

test/1234

1. right click on each job, click 'Modify'
2. select a first run time, update alert email, click 'Submit'
3. after modified two sample jobs, check your output of "crontab -l"

> crontab -l
...
PATH=$PATH:/usr/bin/:/usr/local/bin

14 18 7 * * cd /webcron && /usr/local/bin/rake RAILS_ENV=development webcron:excutejob[1] >>/tmp/webcron.development.log 2>&1
14 18 * * 2 cd /webcron && /usr/local/bin/rake RAILS_ENV=development webcron:excutejob[2] >>/tmp/webcron.development.log 2>&1

B) verify your deployment

1. Right click on one sample job, click 'Run' to manually run this job. Check if job can be excuted successfully, and also check if you received the alert email.
2. Select a proper first run time(e.g. after 1 min) to verify if schedule works.

C) login as admin, manage accounts

admin/1234

switch to job protype tab

you can also define your own job protype

D) alert email sample

TBD

20170214 branch: rails engine mode

• like pghero
• rails runner instead of rake task
• clock process(e.g. sidekiq-cron) instead of crontab
• code style

direct crontab string option

flexible user habits, e.g 9:00AM ~ 11:00AM each 2 min every day

*/2 9~10 * * * call_some_tricks