Ruby script to connect to New Relic and turn on our flame lamp!

gistfile1.rb

#!/usr/bin/env ruby

## as seen on http://nerds.airbnb.com/monitoring-your-serverswith-fire

THRESHOLD = 1000 # milliseconds
flame_on = false

def log ms, msg
  puts "#{Time.now.to_s} \t #{ms}ms \t #{msg}"
end

while true
  begin
    response = `curl --silent --header "x-api-key:YOUR_API_KEY" https://rpm.newrelic.com/accounts/7358/applications/2237/threshold_values.xml`
    line = response.split("\n").select{|l| l.include?("Response Time")}.first
    ms = /metric_value="(\d+)"/.match(line)[1].to_i
    
    if ms > THRESHOLD and !flame_on
      log ms, "turning lamp on!"
      `python usbnetpower8800.py on`
      flame_on = true
    elsif ms < THRESHOLD and flame_on
      log ms, "turning lamp off"
      `python usbnetpower8800.py off`
      flame_on = false
    end
    # p ms
    sleep 10
  rescue Exception => e
    puts "#{e.message} \n#{e.backtrace}"
    sleep 60
  end
end