raketasktrigger's Introduction

Rake Task Trigger

Description

Node worker to spawn a rake task when a message is pulled from a queue.

This worker monitors for a cloudq message on the queue specified. When a message is found it runs the specified rake task.

Polls cloudq every 10 minutes by default for a trigger message.

Environment Variables

CLOUDQ: uri for cloudq server to monitor with queue name.
  ** example: 'http://localhost:3005/queue_to_monitor'
TASK_PROJECT_PATH:  Local file path to art vandelay project/repository.
  ** Required, no default
TASK_NAME:  Name of rake task to run.
  ** Required, no default
  ** example: rake_environment:best_rake_task
HOME_DIR:  Path to home directory of user where rvm is installed. 
  ** defaults to current users home directory.  i.e. /home/your_username
POLL_INTERVAL:  Interval in seconds that cloudq is checked
  ** defaults to 600 seconds or 10 minutes
DINGBOT_URL: Url to dingbot server service can check in at
  ** defaults to null, and will not try to checkin
RUNTIME_ENVS: Environment variables that will be used when running the rake task

Configure to start/monitor with upstart on Ubuntu server

** edit upstart_job/rakeTaskTrigger.conf to verify paths and Environment Variable values.

sudo cp upstart_job/* /etc/init/

To start and stop:

start <fileNameOfUpstartJob>    i.e. start rakeTaskTrigger    
stop  <fileNameOfUpstartJob>    i.e. stop  rakeTaskTrigger

Example Config

cp upstart_job/rakeTaskTrigger.conf upstart_job/rakeTaskTrigger_production.conf
vi upstart_job/rakeTaskTrigger_production.conf
    ** change config values for dev environment
sudo cp upstart_job/rakeTaskTrigger_production.conf /etc/init/
To Start: start rakeTaskTrigger_production
To Stop: stop rakeTaskTrigger_production

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