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Sensu Experiment

This is me doing a crazy sensu experiment to understand it better. To play along, you will need the following:

  • Boot2Docker
  • Docker Compose
  • Virtualenv or virtualenvwrapper
  • A decent internet speed (the initial pull of docker containers can be EXPENSIVE)

Getting Started

Once you have the above installed you're ready to start hacking.

  • clone this repo

  • docker-compose up -d - bring up all the pieces: rabbitmq, redis, sensu+uchiwa, rabbitmqagent

  • navigate to http://192.168.59.103:3000/ to access the uchiwa dashboard. The login is admin/secret

  • navigate to http://192.168.59.103:15672/ to access the rabbitmq management console. The login is guest/guest.

That's it! That's the main pieces we'll be interested in.

Strucure

Configs used within containers:

  • etc/sensu - configuration for sensu-server and uchiwa
  • etc/rabbit - configuration for rabbitmq
  • etc/rabbit-agent - configuration for the rabbitmq agent

For container building:

  • rabbit-agent - builds the rabbit agent container
  • sensu - used to build the sensu-server container

Adding a New Check

Basically, just drop the plugin under etc/rabbit-agent/plugins and a check file underneath etc/sensu/conf.d

Set off an alarm

Install the requirements.txt dependencies and run app.py to dump 30,000 messages into a queue to trigger a warning. Do it again to trigger a critical alert.