Add Keystone API check to sensu-plugins.

sensu-plugins/check_keystone-api.rb

@@ -0,0 +1,86 @@
+#!/usr/bin/env ruby
+#
+# Keystone API monitoring script for Sensu
+#
+# Copyright © 2014 Christopher Eckhardt
+#
+# Author: Christopher Eckhardt <djbkd@dreamsofelectricsheep.net>
+#
+# Released under the same terms as Sensu (the MIT license); see LICENSE
+# for details.
+#
+require 'rubygems' if RUBY_VERSION < '1.9.0'
+require 'sensu-plugin/check/cli'
+require 'net/http'
+require 'net/https'
+require 'json'
+
+class CheckKeystoneAPI < Sensu::Plugin::Check::CLI
+
+  option :url, :short     => '-u URL'
+  option :tenant, :short  => '-T TENANT'
+  option :user, :short    => '-U USERNAME'
+  option :pass, :short    => '-P PASSWORD'
+  option :timeout, :short => '-t SECONDS', :proc => proc {|a| a.to_i}, :default => 10
+
+
+  def run
+    if config[:url]
+      uri = URI.parse(config[:url])
+      config[:host] = uri.host
+      config[:port] = uri.port
+      config[:path] = uri.path + '/tokens'
+      config[:ssl]  = uri.scheme == 'https'
+    else
+      unless config[:host] and config[:path]
+        unknown 'No URL specified'
+      end
+      config[:port] ||= 5000
+    end
+
+    begin
+      timeout(config[:timeout]) do
+        request_token
+      end
+    rescue Timeout::Error
+      critical "Keystone API timed out"
+    rescue => e
+      critical "Keystone API Connection error: #{e.message}"
+    end
+  end
+
+
+  def request_token
+
+    conn = Net::HTTP.new(config[:host], config[:port])
+
+    if config[:ssl]
+      conn.use_ssl = true
+      conn.verify_mode = OpenSSL::SSL::VERIFY_NONE
+    end
+
+    api_request = {
+      'auth' => {
+        'passwordCredentials' => {
+          'username' => config[:user],
+          'password' => config[:pass]
+        },
+        'tenantName' => config[:tenant]
+      }
+    }.to_json
+
+    req = Net::HTTP::Post.new(config[:path])
+    req.body = api_request
+    req['Content-Type'] = 'application/json'
+    res = conn.start{|http| http.request(req)}
+
+    case res.code
+    when /^2/
+      ok res.code + res.body
+    when /^[45]/
+      critical res.code + res.body
+    else
+      warning res.code + res.body
+    end
+  end
+end