A while back I explained how to Create your own fleet of servers with Digital Ocean and salt-cloud. Today I will extend that post and show how I deployed a test environment for Sensu, an open source monitoring framework.
Before I test out new infrastructure software, I always attempt to write deployment manifests. I subject myself to this exercise for the following reasons:
- to get better at configuration management (self growth)
- to enable quick setup and tear down of test environments (save money)
- to make sure the new software may be deployed and maintained in configuration management (a must)
- to document the install process and leave comments (my notes double as automation scripts!)
- to allow knowledge transfer (sharing is caring, you're welcome!)
The state formulas in this post were tested on Ubuntu 12.04.3 x64bit.
Clone or fork the Salt-State tree
git clone https://github.com/russellballestrini/sensu-salt.git
Declare deployment targets
Before deployment, we must declare some targets in the top.sls file:
'*': - git 'sensu-client*': - sensu.client 'sensu-server*': - rabbitmq.server - redis.server - sensu.server - sensu.client
Stand up Sensu test environment
I used the following salt-cloud command to create the sensu monitor server:
salt-cloud --profile ubuntu_do sensu-server && salt 'sensu-server' state.highstate
Once the sensu-server was live, I altered the client-config.json and modified the RabbitMQ host with the new sensu-server's IP or DNS record.
I then spun up 4 sensu-clients using the following command:
salt-cloud -P --profile ubuntu_do sensu-client1 sensu-client2 sensu-client3 sensu-client4 && salt 'sensu-client*' state.highstate
This caused 4 cloud servers to be spawned in parallel, and when the provisioning finished, they instantly appeared in the sensu-dashboard which runs on the sensu-server.
Tear down Sensu test environment
Later when I was done messing with writing checks, I used the following salt-cloud commands to destroy the sensu server and clients:
salt-cloud --destroy sensu-server salt-cloud --destroy sensu-client1 sensu-client2 sensu-client3 sensu-client4