Contents

#!/usr/bin/env ruby
Process.setproctitle($0)

# Reports varnish stats to Riemann.

require 'open3'
require File.expand_path('../../lib/riemann/tools', __FILE__)

class Riemann::Tools::Varnish
  include Riemann::Tools

  opt :varnish_host, "Varnish hostname", :default => `hostname`.chomp

  def initialize
    cmd = 'varnishstat -V'
    Open3.popen3(cmd) do |stdin, stdout, stderr, wait_thr|
      @ver = /varnishstat \(varnish-(\d+)/.match(stderr.read)[1].to_i
    end

    if @ver >= 4
      @vstats = [ "MAIN.sess_conn",
                "MAIN.sess_drop ",
                "MAIN.client_req",
                "MAIN.cache_hit",
                "MAIN.cache_miss" ]
    else
      @vstats = [ "client_conn",
                "client_drop",
                "client_req",
                "cache_hit",
                "cache_miss" ]
    end
  end

  def tick
    if @ver >= 4
      stats = `varnishstat -1 -f #{@vstats.join(" -f ")}`
    else
      stats = `varnishstat -1 -f #{@vstats.join(",")}`
    end
    stats.each_line do |stat|
      m = stat.split()
      report(
             :host => opts[:varnish_host].dup,
             :service => "varnish #{m[0]}",
             :metric => m[1].to_f,
             :state => "ok",
             :description => "#{m[3..-1].join(' ')}",
             :tags => ["varnish"]
            )
    end
  end
end

Riemann::Tools::Varnish.run

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
riemann-tools-1.0.0	bin/riemann-varnish